README.md

Submissions
======================
> *Auto-generated with ❤ using [Harwest](https://github.com/nileshsah/harwest-tool)*

## Introduction

A repository to keep track of problem solving practice, containing solutions from platforms:
* Codeforces   [![Codeforces](https://run.kaist.ac.kr/badges/codeforces/YouKn0wWho.svg)](https://codeforces.com/profile/YouKn0wWho)
* AtCoder   [![AtCoder](https://run.kaist.ac.kr/badges/atcoder/YouKn0wWho.svg)](https://atcoder.jp/users/YouKn0wWho)


## Contents

| # | Title | Solution | Tags | Submitted |
|---| ----- | -------- | ---- | --------- |
1948 | [D - Pairs](https://codeforces.com/contest/1463/problem/D) | [GNU C++17 (64)](./codeforces/1463/D.cpp) | `binary search` `constructive algorithms` `greedy` `*1900` | Dec/17/2020 21:49 | 
1947 | [A - Dungeon](https://codeforces.com/contest/1463/problem/A) | [GNU C++17 (64)](./codeforces/1463/A.cpp) | `binary search` `math` `*1100` | Dec/17/2020 21:03 | 
1946 | [B - Find The Array](https://codeforces.com/contest/1463/problem/B) | [GNU C++17 (64)](./codeforces/1463/B.cpp) | `bitmasks` `constructive algorithms` `greedy` `*1400` | Dec/17/2020 20:56 | 
1945 | [F - New Year and Handle Change](https://codeforces.com/contest/1279/problem/F) | [GNU C++17 (64)](./codeforces/1279/F.cpp) | `binary search` `dp` `*2800` | Dec/17/2020 17:29 | 
1944 | [E - Duff as a Queen](https://codeforces.com/contest/587/problem/E) | [GNU C++17 (64)](./codeforces/587/E.cpp) | `data structures` `*2900` | Dec/16/2020 16:52 | 
1943 | [F - The Treasure of The Segments](https://codeforces.com/contest/1462/problem/F) | [GNU C++17 (64)](./codeforces/1462/F.cpp) | `binary search` `data structures` `greedy` `*1800` | Dec/15/2020 21:32 | 
1942 | [E1 - Close Tuples (easy version)](https://codeforces.com/contest/1462/problem/E1) | [GNU C++17 (64)](./codeforces/1462/E1.cpp) | `binary search` `combinatorics` `math` `sortings` `two pointers` `*1500` | Dec/15/2020 21:11 | 
1941 | [E2 - Close Tuples (hard version)](https://codeforces.com/contest/1462/problem/E2) | [GNU C++17 (64)](./codeforces/1462/E2.cpp) | `binary search` `combinatorics` `implementation` `math` `sortings` `two pointers` `*1700` | Dec/15/2020 21:08 | 
1940 | [D - Add to Neighbour and Remove](https://codeforces.com/contest/1462/problem/D) | [GNU C++17 (64)](./codeforces/1462/D.cpp) | `greedy` `math` `number theory` `*1400` | Dec/15/2020 20:57 | 
1939 | [B - Last Year's Substring](https://codeforces.com/contest/1462/problem/B) | [GNU C++17 (64)](./codeforces/1462/B.cpp) | `dp` `implementation` `strings` `*800` | Dec/15/2020 20:50 | 
1938 | [C - Unique Number](https://codeforces.com/contest/1462/problem/C) | [GNU C++17 (64)](./codeforces/1462/C.cpp) | `brute force` `greedy` `math` `*900` | Dec/15/2020 20:44 | 
1937 | [A - Favorite Sequence](https://codeforces.com/contest/1462/problem/A) | [GNU C++17 (64)](./codeforces/1462/A.cpp) | `implementation` `two pointers` `*800` | Dec/15/2020 20:37 | 
1936 | [C - Ultimate Weirdness of an Array](https://codeforces.com/contest/671/problem/C) | [GNU C++17 (64)](./codeforces/671/C.cpp) | `data structures` `number theory` `*2800` | Dec/14/2020 19:33 | 
1935 | [D - Fox And Travelling](https://codeforces.com/contest/512/problem/D) | [GNU C++17 (64)](./codeforces/512/D.cpp) | `dp` `trees` `*2900` | Dec/13/2020 04:47 | 
1934 | [D - GCD Table](https://codeforces.com/contest/338/problem/D) | [GNU C++17 (64)](./codeforces/338/D.cpp) | `chinese remainder theorem` `math` `number theory` `*2900` | Dec/12/2020 04:16 | 
1933 | [E - Cool Slogans](https://codeforces.com/contest/700/problem/E) | [GNU C++17 (64)](./codeforces/700/E.cpp) | `string suffix structures` `strings` `*3300` | Dec/12/2020 03:30 | 
1932 | [F - Mathematical Expression](https://codeforces.com/contest/1461/problem/F) | [GNU C++17 (64)](./codeforces/1461/F.cpp) | `constructive algorithms` `dp` `greedy` `*2700` | Dec/11/2020 23:14 | 
1931 | [E - Water Level](https://codeforces.com/contest/1461/problem/E) | [GNU C++17 (64)](./codeforces/1461/E.cpp) | `brute force` `graphs` `greedy` `implementation` `math` `*2200` | Dec/11/2020 21:59 | 
1930 | [D - Divide and Summarize](https://codeforces.com/contest/1461/problem/D) | [GNU C++17 (64)](./codeforces/1461/D.cpp) | `binary search` `brute force` `data structures` `divide and conquer` `implementation` `sortings` `*1600` | Dec/11/2020 21:09 | 
1929 | [C - Random Events](https://codeforces.com/contest/1461/problem/C) | [GNU C++17 (64)](./codeforces/1461/C.cpp) | `dp` `math` `probabilities` `*1500` | Dec/11/2020 20:54 | 
1928 | [B - Find the Spruce](https://codeforces.com/contest/1461/problem/B) | [GNU C++17 (64)](./codeforces/1461/B.cpp) | `brute force` `dp` `implementation` `*1400` | Dec/11/2020 20:46 | 
1927 | [A - String Generation](https://codeforces.com/contest/1461/problem/A) | [GNU C++17 (64)](./codeforces/1461/A.cpp) | `constructive algorithms` `greedy` `*800` | Dec/11/2020 20:37 | 
1926 | [F - Yura and Developers](https://codeforces.com/contest/549/problem/F) | [GNU C++17 (64)](./codeforces/549/F.cpp) | `data structures` `divide and conquer` `*2800` | Dec/09/2020 00:18 | 
1925 | [E - Fairy](https://codeforces.com/contest/19/problem/E) | [GNU C++17 (64)](./codeforces/19/E.cpp) | `dfs and similar` `divide and conquer` `dsu` `*2900` | Dec/07/2020 01:15 | 
1924 | [E - Capitalism](https://codeforces.com/contest/1450/problem/E) | [GNU C++17 (64)](./codeforces/1450/E.cpp) | `constructive algorithms` `dfs and similar` `graphs` `shortest paths` `*2700` | Dec/07/2020 00:30 | 
1923 | [C1 - Errich-Tac-Toe (Easy Version)](https://codeforces.com/contest/1450/problem/C1) | [GNU C++17 (64)](./codeforces/1450/C1.cpp) | `constructive algorithms` `math` `*2100` | Dec/06/2020 22:53 | 
1922 | [D - Rating Compression](https://codeforces.com/contest/1450/problem/D) | [GNU C++17 (64)](./codeforces/1450/D.cpp) | `binary search` `data structures` `greedy` `implementation` `two pointers` `*1800` | Dec/06/2020 21:39 | 
1921 | [B - Balls of Steel](https://codeforces.com/contest/1450/problem/B) | [GNU C++17 (64)](./codeforces/1450/B.cpp) | `brute force` `geometry` `greedy` `*1000` | Dec/06/2020 20:40 | 
1920 | [A - Avoid Trygub](https://codeforces.com/contest/1450/problem/A) | [GNU C++17 (64)](./codeforces/1450/A.cpp) | `constructive algorithms` `sortings` `*800` | Dec/06/2020 20:36 | 
1919 | [D - LCIS](https://codeforces.com/contest/10/problem/D) | [GNU C++17 (64)](./codeforces/10/D.cpp) | `dp` `*2800` | Dec/04/2020 23:24 | 
1918 | [D - Checkpoints](https://codeforces.com/contest/1453/problem/D) | [GNU C++17 (64)](./codeforces/1453/D.cpp) | `brute force` `constructive algorithms` `greedy` `math` `probabilities` `*1900` | Dec/04/2020 21:16 | 
1917 | [C - Triangles](https://codeforces.com/contest/1453/problem/C) | [GNU C++17 (64)](./codeforces/1453/C.cpp) | `greedy` `implementation` `*1700` | Dec/04/2020 20:09 | 
1916 | [B - Suffix Operations](https://codeforces.com/contest/1453/problem/B) | [GNU C++17 (64)](./codeforces/1453/B.cpp) | `constructive algorithms` `implementation` `*1400` | Dec/04/2020 19:50 | 
1915 | [A - Cancel the Trains](https://codeforces.com/contest/1453/problem/A) | [GNU C++17 (64)](./codeforces/1453/A.cpp) | `implementation` `*800` | Dec/04/2020 19:08 | 
1914 | [D - Sequence and Swaps](https://codeforces.com/contest/1455/problem/D) | [GNU C++17 (64)](./codeforces/1455/D.cpp) | `dp` `greedy` `sortings` `*1600` | Nov/30/2020 21:13 | 
1913 | [C - Ping-pong](https://codeforces.com/contest/1455/problem/C) | [GNU C++17 (64)](./codeforces/1455/C.cpp) | `constructive algorithms` `games` `math` `*1100` | Nov/30/2020 20:59 | 
1912 | [B - Jumps](https://codeforces.com/contest/1455/problem/B) | [GNU C++17 (64)](./codeforces/1455/B.cpp) | `constructive algorithms` `math` `*1200` | Nov/30/2020 20:50 | 
1911 | [A - Strange Functions](https://codeforces.com/contest/1455/problem/A) | [GNU C++17 (64)](./codeforces/1455/A.cpp) | `math` `number theory` `*800` | Nov/30/2020 20:37 | 
1910 | [A - Bouncing Ball](https://codeforces.com/contest/1456/problem/A) | [GNU C++17 (64)](./codeforces/1456/A.cpp) | `brute force` `dp` `implementation` `*1400` | Nov/29/2020 13:25 | 
1909 | [C - Large RPS Tournament](https://atcoder.jp/contests/arc109/tasks/arc109_c) | [C++ (GCC 9.2.1)](./atcoder/arc109/C.cpp) | `AtCoder` `*500` | Nov/28/2020 18:38 | 
1908 | [B - log](https://atcoder.jp/contests/arc109/tasks/arc109_b) | [C++ (GCC 9.2.1)](./atcoder/arc109/B.cpp) | `AtCoder` `*400` | Nov/28/2020 18:19 | 
1907 | [A - Hands](https://atcoder.jp/contests/arc109/tasks/arc109_a) | [C++ (GCC 9.2.1)](./atcoder/arc109/A.cpp) | `AtCoder` `*300` | Nov/28/2020 18:08 | 
1906 | [E - Number Challenge](https://codeforces.com/contest/235/problem/E) | [GNU C++17 (64)](./codeforces/235/E.cpp) | `combinatorics` `dp` `implementation` `math` `number theory` `*2600` | Nov/27/2020 22:38 | 
1905 | [C - Subset Sums](https://codeforces.com/contest/348/problem/C) | [GNU C++17 (64)](./codeforces/348/C.cpp) | `brute force` `data structures` `*2500` | Nov/26/2020 21:39 | 
1904 | [B - Apple Tree](https://codeforces.com/contest/348/problem/B) | [GNU C++17 (64)](./codeforces/348/B.cpp) | `dfs and similar` `number theory` `trees` `*2100` | Nov/26/2020 20:55 | 
1903 | [A - Mafia](https://codeforces.com/contest/348/problem/A) | [GNU C++17 (64)](./codeforces/348/A.cpp) | `binary search` `math` `sortings` `*1600` | Nov/26/2020 20:12 | 
1902 | [E - Number of Simple Paths](https://codeforces.com/contest/1454/problem/E) | [GNU C++17 (64)](./codeforces/1454/E.cpp) | `combinatorics` `dfs and similar` `graphs` `trees` `*2000` | Nov/25/2020 02:38 | 
1901 | [F - Array Partition](https://codeforces.com/contest/1454/problem/F) | [GNU C++17 (64)](./codeforces/1454/F.cpp) | `binary search` `data structures` `greedy` `two pointers` `*2100` | Nov/25/2020 01:50 | 
1900 | [D - Number into Sequence](https://codeforces.com/contest/1454/problem/D) | [GNU C++17 (64)](./codeforces/1454/D.cpp) | `constructive algorithms` `math` `number theory` `*1300` | Nov/25/2020 01:28 | 
1899 | [C - Sequence Transformation](https://codeforces.com/contest/1454/problem/C) | [GNU C++17 (64)](./codeforces/1454/C.cpp) | `greedy` `implementation` `*1200` | Nov/25/2020 01:20 | 
1898 | [B - Unique Bid Auction](https://codeforces.com/contest/1454/problem/B) | [GNU C++17 (64)](./codeforces/1454/B.cpp) | `implementation` `*800` | Nov/25/2020 01:15 | 
1897 | [A - Special Permutation](https://codeforces.com/contest/1454/problem/A) | [GNU C++17 (64)](./codeforces/1454/A.cpp) | `constructive algorithms` `probabilities` `*800` | Nov/25/2020 01:11 | 
1896 | [E1 - Bitwise Queries (Easy Version)](https://codeforces.com/contest/1451/problem/E1) | [GNU C++17 (64)](./codeforces/1451/E1.cpp) | `bitmasks` `constructive algorithms` `interactive` `math` `*2000` | Nov/21/2020 22:09 | 
1895 | [C - String Equality](https://codeforces.com/contest/1451/problem/C) | [GNU C++17 (64)](./codeforces/1451/C.cpp) | `dp` `greedy` `hashing` `implementation` `strings` `*1400` | Nov/21/2020 20:58 | 
1894 | [B - Non-Substring Subsequence](https://codeforces.com/contest/1451/problem/B) | [GNU C++17 (64)](./codeforces/1451/B.cpp) | `dp` `greedy` `implementation` `strings` `*900` | Nov/21/2020 20:48 | 
1893 | [A - Subtract or Divide](https://codeforces.com/contest/1451/problem/A) | [GNU C++17 (64)](./codeforces/1451/A.cpp) | `greedy` `math` `*800` | Nov/21/2020 20:41 | 
1892 | [F - Paint Tree](https://atcoder.jp/contests/arc108/tasks/arc108_f) | [C++ (GCC 9.2.1)](./atcoder/arc108/F.cpp) | `AtCoder` `*900` | Nov/21/2020 19:26 | 
1891 | [C - Keep Graph Connected](https://atcoder.jp/contests/arc108/tasks/arc108_c) | [C++ (GCC 9.2.1)](./atcoder/arc108/C.cpp) | `AtCoder` `*500` | Nov/21/2020 18:37 | 
1890 | [B - Abbreviate Fox](https://atcoder.jp/contests/arc108/tasks/arc108_b) | [C++ (GCC 9.2.1)](./atcoder/arc108/B.cpp) | `AtCoder` `*400` | Nov/21/2020 18:07 | 
1889 | [A - Sum and Product](https://atcoder.jp/contests/arc108/tasks/arc108_a) | [C++ (GCC 9.2.1)](./atcoder/arc108/A.cpp) | `AtCoder` `*300` | Nov/21/2020 18:02 | 
1888 | [D - Radio Towers](https://codeforces.com/contest/1452/problem/D) | [GNU C++17 (64)](./codeforces/1452/D.cpp) | `combinatorics` `dp` `math` `*1600` | Nov/19/2020 21:36 | 
1887 | [B - Toy Blocks](https://codeforces.com/contest/1452/problem/B) | [GNU C++17 (64)](./codeforces/1452/B.cpp) | `binary search` `greedy` `math` `sortings` `*1400` | Nov/19/2020 21:19 | 
1886 | [C - Two Brackets](https://codeforces.com/contest/1452/problem/C) | [GNU C++17 (64)](./codeforces/1452/C.cpp) | `greedy` `*800` | Nov/19/2020 20:42 | 
1885 | [A - Robot Program](https://codeforces.com/contest/1452/problem/A) | [GNU C++17 (64)](./codeforces/1452/A.cpp) | `math` `*800` | Nov/19/2020 20:39 | 
1884 | [B - The minimal unique substring](https://codeforces.com/contest/1158/problem/B) | [GNU C++17 (64)](./codeforces/1158/B.cpp) | `constructive algorithms` `math` `strings` `*2200` | Nov/16/2020 03:37 | 
1883 | [C - Permutation recovery](https://codeforces.com/contest/1158/problem/C) | [GNU C++17 (64)](./codeforces/1158/C.cpp) | `constructive algorithms` `data structures` `dfs and similar` `graphs` `greedy` `math` `sortings` `*2100` | Nov/16/2020 03:32 | 
1882 | [A - The Party and Sweets](https://codeforces.com/contest/1158/problem/A) | [GNU C++17 (64)](./codeforces/1158/A.cpp) | `binary search` `constructive algorithms` `greedy` `implementation` `math` `sortings` `two pointers` `*1500` | Nov/16/2020 02:15 | 
1881 | [A - Knapsack](https://codeforces.com/contest/1446/problem/A) | [GNU C++17 (64)](./codeforces/1446/A.cpp) | `constructive algorithms` `greedy` `sortings` `*1300` | Nov/15/2020 20:44 | 
1880 | [F - Confluence](https://atcoder.jp/contests/abc183/tasks/abc183_f) | [C++ (GCC 9.2.1)](./atcoder/abc183/F.cpp) | `AtCoder` `*600` | Nov/15/2020 19:00 | 
1879 | [E - Queen on Grid](https://atcoder.jp/contests/abc183/tasks/abc183_e) | [C++ (GCC 9.2.1)](./atcoder/abc183/E.cpp) | `AtCoder` `*500` | Nov/15/2020 18:30 | 
1878 | [D - Water Heater](https://atcoder.jp/contests/abc183/tasks/abc183_d) | [C++ (GCC 9.2.1)](./atcoder/abc183/D.cpp) | `AtCoder` `*400` | Nov/15/2020 18:16 | 
1877 | [C - Travel](https://atcoder.jp/contests/abc183/tasks/abc183_c) | [C++ (GCC 9.2.1)](./atcoder/abc183/C.cpp) | `AtCoder` `*300` | Nov/15/2020 18:10 | 
1876 | [B - Billiards](https://atcoder.jp/contests/abc183/tasks/abc183_b) | [C++ (GCC 9.2.1)](./atcoder/abc183/B.cpp) | `AtCoder` `*200` | Nov/15/2020 18:06 | 
1875 | [A - ReLU](https://atcoder.jp/contests/abc183/tasks/abc183_a) | [C++ (GCC 9.2.1)](./atcoder/abc183/A.cpp) | `AtCoder` `*100` | Nov/15/2020 18:00 | 
1874 | [C - Engineer Artem](https://codeforces.com/contest/1438/problem/C) | [GNU C++17 (64)](./codeforces/1438/C.cpp) | `2-sat` `chinese remainder theorem` `constructive algorithms` `fft` `flows` `*2000` | Nov/13/2020 22:03 | 
1873 | [E - Yurii Can Do Everything](https://codeforces.com/contest/1438/problem/E) | [GNU C++17 (64)](./codeforces/1438/E.cpp) | `binary search` `bitmasks` `brute force` `constructive algorithms` `divide and conquer` `two pointers` `*2500` | Nov/13/2020 21:31 | 
1872 | [B - Valerii Against Everyone](https://codeforces.com/contest/1438/problem/B) | [GNU C++17 (64)](./codeforces/1438/B.cpp) | `constructive algorithms` `data structures` `greedy` `sortings` `*1000` | Nov/13/2020 20:40 | 
1871 | [A - Specific Tastes of Andre ](https://codeforces.com/contest/1438/problem/A) | [GNU C++17 (64)](./codeforces/1438/A.cpp) | `constructive algorithms` `implementation` `*800` | Nov/13/2020 20:36 | 
1870 | [C - Joker](https://codeforces.com/contest/1386/problem/C) | [GNU C++17 (64)](./codeforces/1386/C.cpp) | `*special problem` `bitmasks` `data structures` `divide and conquer` `dsu` `*2800` | Nov/04/2020 17:37 | 
1869 | [A - Extreme Subtraction](https://codeforces.com/contest/1442/problem/A) | [GNU C++17 (64)](./codeforces/1442/A.cpp) | `constructive algorithms` `dp` `greedy` `*1800` | Nov/02/2020 23:14 | 
1868 | [D - Sum](https://codeforces.com/contest/1442/problem/D) | [GNU C++17 (64)](./codeforces/1442/D.cpp) | `data structures` `divide and conquer` `dp` `greedy` `*2800` | Nov/02/2020 21:57 | 
1867 | [B - Divide and Sum](https://codeforces.com/contest/1444/problem/B) | [GNU C++17 (64)](./codeforces/1444/B.cpp) | `combinatorics` `math` `sortings` `*1900` | Nov/01/2020 19:04 | 
1866 | [A - Division](https://codeforces.com/contest/1444/problem/A) | [GNU C++17 (64)](./codeforces/1444/A.cpp) | `brute force` `math` `number theory` `*1500` | Nov/01/2020 17:12 | 
1865 | [B - Reverse Binary Strings](https://codeforces.com/contest/1437/problem/B) | [GNU C++17 (64)](./codeforces/1437/B.cpp) | `constructive algorithms` `greedy` `*1200` | Oct/27/2020 22:22 | 
1864 | [E - Make It Increasing](https://codeforces.com/contest/1437/problem/E) | [GNU C++17 (64)](./codeforces/1437/E.cpp) | `binary search` `constructive algorithms` `data structures` `dp` `implementation` `*2200` | Oct/27/2020 22:10 | 
1863 | [G - Death DBMS](https://codeforces.com/contest/1437/problem/G) | [GNU C++17 (64)](./codeforces/1437/G.cpp) | `data structures` `string suffix structures` `strings` `trees` `*2600` | Oct/27/2020 21:46 | 
1862 | [D - Minimal Height Tree](https://codeforces.com/contest/1437/problem/D) | [GNU C++17 (64)](./codeforces/1437/D.cpp) | `graphs` `greedy` `shortest paths` `trees` `*1600` | Oct/27/2020 21:13 | 
1861 | [C - Chef Monocarp](https://codeforces.com/contest/1437/problem/C) | [GNU C++17 (64)](./codeforces/1437/C.cpp) | `dp` `flows` `graph matchings` `greedy` `math` `sortings` `*1800` | Oct/27/2020 21:03 | 
1860 | [A - Marketing Scheme](https://codeforces.com/contest/1437/problem/A) | [GNU C++17 (64)](./codeforces/1437/A.cpp) | `brute force` `constructive algorithms` `greedy` `math` `*800` | Oct/27/2020 20:41 | 
1859 | [D - Roads and Ramen](https://codeforces.com/contest/1434/problem/D) | [GNU C++17 (64)](./codeforces/1434/D.cpp) | `data structures` `dfs and similar` `trees` `*2800` | Oct/26/2020 13:25 | 
1858 | [B - Shurikens](https://codeforces.com/contest/1434/problem/B) | [GNU C++17 (64)](./codeforces/1434/B.cpp) | `data structures` `greedy` `implementation` `*1700` | Oct/25/2020 17:39 | 
1857 | [A - Perform Easily](https://codeforces.com/contest/1434/problem/A) | [GNU C++17 (64)](./codeforces/1434/A.cpp) | `binary search` `brute force` `data structures` `dp` `greedy` `sortings` `two pointers` `*1900` | Oct/25/2020 17:21 | 
1856 | [E - Complicated Computations](https://codeforces.com/contest/1436/problem/E) | [GNU C++17 (64)](./codeforces/1436/E.cpp) | `binary search` `data structures` `two pointers` `*2400` | Oct/25/2020 14:45 | 
1855 | [F - Sum Over Subsets](https://codeforces.com/contest/1436/problem/F) | [GNU C++17 (64)](./codeforces/1436/F.cpp) | `combinatorics` `math` `number theory` `*2800` | Oct/24/2020 22:07 | 
1854 | [C - Binary Search](https://codeforces.com/contest/1436/problem/C) | [GNU C++17 (64)](./codeforces/1436/C.cpp) | `binary search` `combinatorics` `*1500` | Oct/24/2020 21:26 | 
1853 | [B - Prime Square](https://codeforces.com/contest/1436/problem/B) | [GNU C++17 (64)](./codeforces/1436/B.cpp) | `constructive algorithms` `math` `*900` | Oct/24/2020 20:37 | 
1852 | [A - Reorder](https://codeforces.com/contest/1436/problem/A) | [GNU C++17 (64)](./codeforces/1436/A.cpp) | `math` `*800` | Oct/24/2020 20:07 | 
1851 | [F - Figures](https://atcoder.jp/contests/arc106/tasks/arc106_f) | [C++ (GCC 9.2.1)](./atcoder/arc106/F.cpp) | `AtCoder` `*800` | Oct/24/2020 19:48 | 
1850 | [C - Solutions](https://atcoder.jp/contests/arc106/tasks/arc106_c) | [C++ (GCC 9.2.1)](./atcoder/arc106/C.cpp) | `AtCoder` `*500` | Oct/24/2020 19:34 | 
1849 | [D - Powers](https://atcoder.jp/contests/arc106/tasks/arc106_d) | [C++ (GCC 9.2.1)](./atcoder/arc106/D.cpp) | `AtCoder` `*600` | Oct/24/2020 18:55 | 
1848 | [B - Values](https://atcoder.jp/contests/arc106/tasks/arc106_b) | [C++ (GCC 9.2.1)](./atcoder/arc106/B.cpp) | `AtCoder` `*400` | Oct/24/2020 18:09 | 
1847 | [A - 106](https://atcoder.jp/contests/arc106/tasks/arc106_a) | [C++ (GCC 9.2.1)](./atcoder/arc106/A.cpp) | `AtCoder` `*300` | Oct/24/2020 18:02 | 
1846 | [E - Nauuo and ODT](https://codeforces.com/contest/1172/problem/E) | [GNU C++17 (64)](./codeforces/1172/E.cpp) | `data structures` `*3300` | Oct/22/2020 13:11 | 
1845 | [G - Reducing Delivery Cost](https://codeforces.com/contest/1433/problem/G) | [GNU C++17 (64)](./codeforces/1433/G.cpp) | `brute force` `graphs` `shortest paths` `*2100` | Oct/20/2020 21:54 | 
1844 | [E - Two Round Dances](https://codeforces.com/contest/1433/problem/E) | [GNU C++17 (64)](./codeforces/1433/E.cpp) | `combinatorics` `math` `*1300` | Oct/20/2020 21:31 | 
1843 | [F - Zero Remainder Sum ](https://codeforces.com/contest/1433/problem/F) | [GNU C++17 (64)](./codeforces/1433/F.cpp) | `dp` `*2100` | Oct/20/2020 21:26 | 
1842 | [D - Districts Connection](https://codeforces.com/contest/1433/problem/D) | [GNU C++17 (64)](./codeforces/1433/D.cpp) | `constructive algorithms` `dfs and similar` `*1200` | Oct/20/2020 21:02 | 
1841 | [C - Dominant Piranha](https://codeforces.com/contest/1433/problem/C) | [GNU C++17 (64)](./codeforces/1433/C.cpp) | `constructive algorithms` `greedy` `*900` | Oct/20/2020 20:49 | 
1840 | [B - Yet Another Bookshelf](https://codeforces.com/contest/1433/problem/B) | [GNU C++17 (64)](./codeforces/1433/B.cpp) | `greedy` `implementation` `*800` | Oct/20/2020 20:44 | 
1839 | [A - Boring Apartments](https://codeforces.com/contest/1433/problem/A) | [GNU C++17 (64)](./codeforces/1433/A.cpp) | `implementation` `math` `*800` | Oct/20/2020 20:39 | 
1838 | [A - atcoder < S](https://atcoder.jp/contests/agc048/tasks/agc048_a) | [C++ (GCC 9.2.1)](./atcoder/agc048/A.cpp) | `AtCoder` `*300` | Oct/18/2020 18:08 | 
1837 | [D - Hexagons](https://codeforces.com/contest/1421/problem/D) | [GNU C++17 (64)](./codeforces/1421/D.cpp) | `brute force` `constructive algorithms` `greedy` `implementation` `math` `shortest paths` `*1900` | Oct/18/2020 16:18 | 
1836 | [C - Palindromifier](https://codeforces.com/contest/1421/problem/C) | [GNU C++17 (64)](./codeforces/1421/C.cpp) | `constructive algorithms` `strings` `*1400` | Oct/18/2020 15:39 | 
1835 | [B - Putting Bricks in the Wall](https://codeforces.com/contest/1421/problem/B) | [GNU C++17 (64)](./codeforces/1421/B.cpp) | `constructive algorithms` `implementation` `*1100` | Oct/18/2020 15:18 | 
1834 | [A - XORwice](https://codeforces.com/contest/1421/problem/A) | [GNU C++17 (64)](./codeforces/1421/A.cpp) | `bitmasks` `greedy` `math` `*800` | Oct/18/2020 15:07 | 
1833 | [B - MAX-=min](https://atcoder.jp/contests/arc105/tasks/arc105_b) | [C++ (GCC 9.2.1)](./atcoder/arc105/B.cpp) | `AtCoder` `*300` | Oct/11/2020 19:34 | 
1832 | [A - Fourtune Cookies](https://atcoder.jp/contests/arc105/tasks/arc105_a) | [C++ (GCC 9.2.1)](./atcoder/arc105/A.cpp) | `AtCoder` `*200` | Oct/11/2020 19:32 | 
1831 | [E - Xum](https://codeforces.com/contest/1427/problem/E) | [GNU C++17 (64)](./codeforces/1427/E.cpp) | `bitmasks` `constructive algorithms` `math` `matrices` `number theory` `*2500` | Oct/11/2020 01:36 | 
1830 | [J - Bubble Cup hypothesis](https://codeforces.com/contest/1423/problem/J) | [GNU C++17 (64)](./codeforces/1423/J.cpp) | `bitmasks` `constructive algorithms` `dp` `math` `*2400` | Oct/05/2020 20:56 | 
1829 | [K - Lonely Numbers](https://codeforces.com/contest/1423/problem/K) | [GNU C++17 (64)](./codeforces/1423/K.cpp) | `binary search` `math` `number theory` `two pointers` `*1600` | Oct/05/2020 20:12 | 
1828 | [B - Valuable Paper](https://codeforces.com/contest/1423/problem/B) | [GNU C++17 (64)](./codeforces/1423/B.cpp) | `binary search` `flows` `graph matchings` `graphs` `*1900` | Oct/05/2020 19:57 | 
1827 | [E - Minlexes](https://codeforces.com/contest/1422/problem/E) | [GNU C++17 (64)](./codeforces/1422/E.cpp) | `dp` `greedy` `implementation` `strings` `*2700` | Oct/05/2020 02:23 | 
1826 | [D - Returning Home](https://codeforces.com/contest/1422/problem/D) | [GNU C++17 (64)](./codeforces/1422/D.cpp) | `graphs` `shortest paths` `sortings` `*2300` | Oct/05/2020 00:49 | 
1825 | [C - Bargain](https://codeforces.com/contest/1422/problem/C) | [GNU C++17 (64)](./codeforces/1422/C.cpp) | `combinatorics` `dp` `math` `*1700` | Oct/04/2020 22:33 | 
1824 | [B - Nice Matrix](https://codeforces.com/contest/1422/problem/B) | [GNU C++17 (64)](./codeforces/1422/B.cpp) | `greedy` `implementation` `math` `*1300` | Oct/04/2020 22:22 | 
1823 | [A - Fence](https://codeforces.com/contest/1422/problem/A) | [GNU C++17 (64)](./codeforces/1422/A.cpp) | `geometry` `math` `*800` | Oct/04/2020 22:09 | 
1822 | [D - Multiset Mean](https://atcoder.jp/contests/arc104/tasks/arc104_d) | [C++ (GCC 9.2.1)](./atcoder/arc104/D.cpp) | `AtCoder` `*700` | Oct/04/2020 00:59 | 
1821 | [A - Plus Minus](https://atcoder.jp/contests/arc104/tasks/arc104_a) | [C++ (GCC 9.2.1)](./atcoder/arc104/A.cpp) | `AtCoder` `*100` | Oct/03/2020 18:06 | 
1820 | [B - DNA Sequence](https://atcoder.jp/contests/arc104/tasks/arc104_b) | [C++ (GCC 9.2.1)](./atcoder/arc104/B.cpp) | `AtCoder` `*400` | Oct/03/2020 18:06 | 
1819 | [G - Clusterization Counting](https://codeforces.com/contest/1408/problem/G) | [GNU C++17 (64)](./codeforces/1408/G.cpp) | `combinatorics` `dp` `dsu` `fft` `graphs` `trees` `*2700` | Oct/01/2020 14:54 | 
1818 | [A - Watermelon](https://codeforces.com/contest/4/problem/A) | [GNU C++17 (64)](./codeforces/4/A.cpp) | `brute force` `math` `*800` | Oct/01/2020 00:52 | 
1817 | [B - Even Array](https://codeforces.com/contest/1367/problem/B) | [GNU C++17 (64)](./codeforces/1367/B.cpp) | `greedy` `math` `*800` | Oct/01/2020 00:34 | 
1816 | [B - T-primes](https://codeforces.com/contest/230/problem/B) | [GNU C++17 (64)](./codeforces/230/B.cpp) | `binary search` `implementation` `math` `number theory` `*1300` | Oct/01/2020 00:17 | 
1815 | [F - Two Different](https://codeforces.com/contest/1408/problem/F) | [GNU C++17 (64)](./codeforces/1408/F.cpp) | `constructive algorithms` `divide and conquer` `*2300` | Sep/30/2020 23:49 | 
1814 | [B - Arrays Sum](https://codeforces.com/contest/1408/problem/B) | [GNU C++17 (64)](./codeforces/1408/B.cpp) | `constructive algorithms` `greedy` `math` `*1400` | Sep/30/2020 23:16 | 
1813 | [D - Searchlights](https://codeforces.com/contest/1408/problem/D) | [GNU C++17 (64)](./codeforces/1408/D.cpp) | `binary search` `brute force` `data structures` `dp` `implementation` `sortings` `two pointers` `*2000` | Sep/30/2020 23:12 | 
1812 | [C - Discrete Acceleration](https://codeforces.com/contest/1408/problem/C) | [GNU C++17 (64)](./codeforces/1408/C.cpp) | `binary search` `dp` `implementation` `math` `two pointers` `*1500` | Sep/30/2020 21:04 | 
1811 | [A - Circle Coloring](https://codeforces.com/contest/1408/problem/A) | [GNU C++17 (64)](./codeforces/1408/A.cpp) | `constructive algorithms` `*800` | Sep/30/2020 20:40 | 
1810 | [D - Graph and Queries](https://codeforces.com/contest/1416/problem/D) | [GNU C++17 (64)](./codeforces/1416/D.cpp) | `data structures` `dsu` `graphs` `implementation` `trees` `*2600` | Sep/29/2020 19:49 | 
1809 | [E - Rock, Paper, Scissors](https://codeforces.com/contest/1426/problem/E) | [GNU C++17 (64)](./codeforces/1426/E.cpp) | `brute force` `constructive algorithms` `flows` `greedy` `math` `*1800` | Sep/28/2020 20:16 | 
1808 | [F - Number of Subsequences](https://codeforces.com/contest/1426/problem/F) | [GNU C++17 (64)](./codeforces/1426/F.cpp) | `combinatorics` `dp` `strings` `*2000` | Sep/28/2020 20:01 | 
1807 | [D - Non-zero Segments](https://codeforces.com/contest/1426/problem/D) | [GNU C++17 (64)](./codeforces/1426/D.cpp) | `constructive algorithms` `data structures` `greedy` `sortings` `*1500` | Sep/28/2020 19:48 | 
1806 | [C - Increase and Copy](https://codeforces.com/contest/1426/problem/C) | [GNU C++17 (64)](./codeforces/1426/C.cpp) | `binary search` `constructive algorithms` `math` `*1100` | Sep/28/2020 19:40 | 
1805 | [B - Symmetric Matrix](https://codeforces.com/contest/1426/problem/B) | [GNU C++17 (64)](./codeforces/1426/B.cpp) | `implementation` `*900` | Sep/28/2020 19:36 | 
1804 | [A - Floor Number](https://codeforces.com/contest/1426/problem/A) | [GNU C++17 (64)](./codeforces/1426/A.cpp) | `implementation` `math` `*800` | Sep/28/2020 19:30 | 
1803 | [C - XOR Inverse](https://codeforces.com/contest/1416/problem/C) | [GNU C++17 (64)](./codeforces/1416/C.cpp) | `bitmasks` `data structures` `divide and conquer` `dp` `greedy` `math` `sortings` `strings` `trees` `*2000` | Sep/28/2020 00:14 | 
1802 | [B - Make Them Equal](https://codeforces.com/contest/1416/problem/B) | [GNU C++17 (64)](./codeforces/1416/B.cpp) | `constructive algorithms` `greedy` `math` `*2000` | Sep/27/2020 21:41 | 
1801 | [A - k-Amazing Numbers](https://codeforces.com/contest/1416/problem/A) | [GNU C++17 (64)](./codeforces/1416/A.cpp) | `binary search` `data structures` `implementation` `two pointers` `*1500` | Sep/27/2020 21:13 | 
1800 | [F - Heights and Pairs](https://atcoder.jp/contests/abl/tasks/abl_f) | [C++ (GCC 9.2.1)](./atcoder/abl/F.cpp) | `AtCoder` `*600` | Sep/26/2020 19:18 | 
1799 | [E - Replace Digits](https://atcoder.jp/contests/abl/tasks/abl_e) | [C++ (GCC 9.2.1)](./atcoder/abl/E.cpp) | `AtCoder` `*500` | Sep/26/2020 18:20 | 
1798 | [D - Flat Subsequence](https://atcoder.jp/contests/abl/tasks/abl_d) | [C++ (GCC 9.2.1)](./atcoder/abl/D.cpp) | `AtCoder` `*400` | Sep/26/2020 18:10 | 
1797 | [C - Connect Cities](https://atcoder.jp/contests/abl/tasks/abl_c) | [C++ (GCC 9.2.1)](./atcoder/abl/C.cpp) | `AtCoder` `*300` | Sep/26/2020 18:05 | 
1796 | [B - Integer Preference](https://atcoder.jp/contests/abl/tasks/abl_b) | [C++ (GCC 9.2.1)](./atcoder/abl/B.cpp) | `AtCoder` `*200` | Sep/26/2020 18:03 | 
1795 | [A - Repeat ACL](https://atcoder.jp/contests/abl/tasks/abl_a) | [C++ (GCC 9.2.1)](./atcoder/abl/A.cpp) | `AtCoder` `*100` | Sep/26/2020 18:01 | 
1794 | [E - Battle Lemmings](https://codeforces.com/contest/1420/problem/E) | [GNU C++17 (64)](./codeforces/1420/E.cpp) | `dp` `greedy` `*2500` | Sep/25/2020 00:05 | 
1793 | [C2 - Pokémon Army (hard version)](https://codeforces.com/contest/1420/problem/C2) | [GNU C++17 (64)](./codeforces/1420/C2.cpp) | `data structures` `divide and conquer` `dp` `greedy` `implementation` `*2100` | Sep/24/2020 21:51 | 
1792 | [D - Rescue Nibel!](https://codeforces.com/contest/1420/problem/D) | [GNU C++17 (64)](./codeforces/1420/D.cpp) | `combinatorics` `data structures` `sortings` `*1800` | Sep/24/2020 21:28 | 
1791 | [C1 - Pokémon Army (easy version)](https://codeforces.com/contest/1420/problem/C1) | [GNU C++17 (64)](./codeforces/1420/C1.cpp) | `constructive algorithms` `dp` `greedy` `*1300` | Sep/24/2020 20:49 | 
1790 | [B - Rock and Lever](https://codeforces.com/contest/1420/problem/B) | [GNU C++17 (64)](./codeforces/1420/B.cpp) | `bitmasks` `math` `*1200` | Sep/24/2020 20:41 | 
1789 | [A - Cubes Sorting](https://codeforces.com/contest/1420/problem/A) | [GNU C++17 (64)](./codeforces/1420/A.cpp) | `math` `sortings` `*900` | Sep/24/2020 20:38 | 
1788 | [D - Permutations](https://codeforces.com/contest/736/problem/D) | [GNU C++17 (64)](./codeforces/736/D.cpp) | `math` `matrices` `*2800` | Sep/24/2020 07:35 | 
1787 | [A - Tennis Championship](https://codeforces.com/contest/736/problem/A) | [GNU C++17 (64)](./codeforces/736/A.cpp) | `combinatorics` `constructive algorithms` `dfs and similar` `dp` `math` `*1600` | Sep/24/2020 06:24 | 
1786 | [B - Taxes](https://codeforces.com/contest/736/problem/B) | [GNU C++17 (64)](./codeforces/736/B.cpp) | `math` `number theory` `*1600` | Sep/24/2020 06:10 | 
1785 | [D - Caesar's Legions](https://codeforces.com/contest/118/problem/D) | [PyPy 3](./codeforces/118/D.py) | `dp` `*1700` | Sep/23/2020 22:16 | 
1784 | [E - New Year Parties](https://codeforces.com/contest/1283/problem/E) | [PyPy 3](./codeforces/1283/E.py) | `dp` `greedy` `*1800` | Sep/23/2020 03:42 | 
1783 | [D - Christmas Trees](https://codeforces.com/contest/1283/problem/D) | [PyPy 3](./codeforces/1283/D.py) | `graphs` `greedy` `shortest paths` `*1800` | Sep/23/2020 03:12 | 
1782 | [D - Lovely Matrix](https://codeforces.com/contest/274/problem/D) | [GNU C++17 (64)](./codeforces/274/D.cpp) | `dfs and similar` `graphs` `greedy` `sortings` `*2200` | Sep/22/2020 22:17 | 
1781 | [B - Zero Tree](https://codeforces.com/contest/274/problem/B) | [GNU C++17 (64)](./codeforces/274/B.cpp) | `dfs and similar` `dp` `greedy` `trees` `*1800` | Sep/22/2020 21:09 | 
1780 | [A - k-Multiple Free Set](https://codeforces.com/contest/274/problem/A) | [GNU C++17 (64)](./codeforces/274/A.cpp) | `binary search` `greedy` `sortings` `*1500` | Sep/22/2020 20:51 | 
1779 | [C - Moving Pieces](https://atcoder.jp/contests/acl1/tasks/acl1_c) | [C++ (GCC 9.2.1)](./atcoder/acl1/C.cpp) | `AtCoder` `*600` | Sep/20/2020 21:26 | 
1778 | [D2 - Sage's Birthday (hard version)](https://codeforces.com/contest/1419/problem/D2) | [GNU C++17 (64)](./codeforces/1419/D2.cpp) | `binary search` `brute force` `constructive algorithms` `greedy` `sortings` `two pointers` `*1500` | Sep/20/2020 00:27 | 
1777 | [A - Digit Game](https://codeforces.com/contest/1419/problem/A) | [GNU C++17 (64)](./codeforces/1419/A.cpp) | `games` `greedy` `implementation` `*900` | Sep/20/2020 00:27 | 
1776 | [E - Decryption](https://codeforces.com/contest/1419/problem/E) | [GNU C++17 (64)](./codeforces/1419/E.cpp) | `constructive algorithms` `implementation` `math` `number theory` `*2100` | Sep/19/2020 22:25 | 
1775 | [C - Killjoy](https://codeforces.com/contest/1419/problem/C) | [GNU C++17 (64)](./codeforces/1419/C.cpp) | `greedy` `implementation` `math` `*1500` | Sep/19/2020 21:30 | 
1774 | [D1 - Sage's Birthday (easy version)](https://codeforces.com/contest/1419/problem/D1) | [GNU C++17 (64)](./codeforces/1419/D1.cpp) | `binary search` `constructive algorithms` `greedy` `sortings` `*1000` | Sep/19/2020 21:00 | 
1773 | [B - Stairs](https://codeforces.com/contest/1419/problem/B) | [GNU C++17 (64)](./codeforces/1419/B.cpp) | `brute force` `constructive algorithms` `greedy` `implementation` `math` `*1200` | Sep/19/2020 20:51 | 
1772 | [F - Simplified Reversi](https://atcoder.jp/contests/abc179/tasks/abc179_f) | [C++ (GCC 9.2.1)](./atcoder/abc179/F.cpp) | `AtCoder` `*600` | Sep/19/2020 20:12 | 
1771 | [E - Sequence Sum](https://atcoder.jp/contests/abc179/tasks/abc179_e) | [C++ (GCC 9.2.1)](./atcoder/abc179/E.cpp) | `AtCoder` `*500` | Sep/19/2020 18:21 | 
1770 | [D - Leaping Tak](https://atcoder.jp/contests/abc179/tasks/abc179_d) | [C++ (GCC 9.2.1)](./atcoder/abc179/D.cpp) | `AtCoder` `*400` | Sep/19/2020 18:12 | 
1769 | [C - A x B + C](https://atcoder.jp/contests/abc179/tasks/abc179_c) | [C++ (GCC 9.2.1)](./atcoder/abc179/C.cpp) | `AtCoder` `*300` | Sep/19/2020 18:05 | 
1768 | [B - Go to Jail](https://atcoder.jp/contests/abc179/tasks/abc179_b) | [C++ (GCC 9.2.1)](./atcoder/abc179/B.cpp) | `AtCoder` `*200` | Sep/19/2020 18:03 | 
1767 | [A - Plural Form](https://atcoder.jp/contests/abc179/tasks/abc179_a) | [C++ (GCC 9.2.1)](./atcoder/abc179/A.cpp) | `AtCoder` `*100` | Sep/19/2020 18:01 | 
1766 | [C - Sereja and Subsequences](https://codeforces.com/contest/314/problem/C) | [GNU C++17 (64)](./codeforces/314/C.cpp) | `data structures` `dp` `*2000` | Sep/18/2020 15:17 | 
1765 | [E - Opening Portals](https://codeforces.com/contest/196/problem/E) | [GNU C++17 (64)](./codeforces/196/E.cpp) | `dsu` `graphs` `shortest paths` `*2600` | Sep/18/2020 08:44 | 
1764 | [C - Paint Tree](https://codeforces.com/contest/196/problem/C) | [GNU C++17 (64)](./codeforces/196/C.cpp) | `constructive algorithms` `divide and conquer` `geometry` `sortings` `trees` `*2200` | Sep/18/2020 08:01 | 
1763 | [B - Infinite Maze](https://codeforces.com/contest/196/problem/B) | [GNU C++17 (64)](./codeforces/196/B.cpp) | `dfs and similar` `graphs` `*2000` | Sep/18/2020 07:36 | 
1762 | [A - Lexicographically Maximum Subsequence](https://codeforces.com/contest/196/problem/A) | [GNU C++17 (64)](./codeforces/196/A.cpp) | `greedy` `strings` `*1100` | Sep/18/2020 06:31 | 
1761 | [G - Shortest Path Queries](https://codeforces.com/contest/938/problem/G) | [GNU C++17 (64)](./codeforces/938/G.cpp) | `bitmasks` `data structures` `dsu` `graphs` `*2900` | Sep/18/2020 04:42 | 
1760 | [F - Erasing Substrings](https://codeforces.com/contest/938/problem/F) | [GNU C++17 (64)](./codeforces/938/F.cpp) | `bitmasks` `dp` `greedy` `*2700` | Sep/17/2020 07:50 | 
1759 | [F - T-Shirts](https://codeforces.com/contest/702/problem/F) | [GNU C++17 (64)](./codeforces/702/F.cpp) | `data structures` `*2800` | Sep/15/2020 20:29 | 
1758 | [E - Expected Damage](https://codeforces.com/contest/1418/problem/E) | [GNU C++17 (64)](./codeforces/1418/E.cpp) | `binary search` `combinatorics` `probabilities` `*2400` | Sep/15/2020 19:28 | 
1757 | [E - Analysis of Pathes in Functional Graph](https://codeforces.com/contest/702/problem/E) | [GNU C++17 (64)](./codeforces/702/E.cpp) | `data structures` `graphs` `*2100` | Sep/15/2020 18:16 | 
1756 | [G - Three Occurrences](https://codeforces.com/contest/1418/problem/G) | [GNU C++17 (64)](./codeforces/1418/G.cpp) | `data structures` `divide and conquer` `hashing` `two pointers` `*2500` | Sep/14/2020 23:47 | 
1755 | [D - Trash Problem](https://codeforces.com/contest/1418/problem/D) | [GNU C++17 (64)](./codeforces/1418/D.cpp) | `data structures` `implementation` `*2100` | Sep/14/2020 21:33 | 
1754 | [C - Mortal Kombat Tower](https://codeforces.com/contest/1418/problem/C) | [GNU C++17 (64)](./codeforces/1418/C.cpp) | `dp` `graphs` `greedy` `shortest paths` `*1500` | Sep/14/2020 21:16 | 
1753 | [B - Negative Prefixes](https://codeforces.com/contest/1418/problem/B) | [GNU C++17 (64)](./codeforces/1418/B.cpp) | `greedy` `sortings` `*1300` | Sep/14/2020 21:06 | 
1752 | [A - Buying Torches](https://codeforces.com/contest/1418/problem/A) | [GNU C++17 (64)](./codeforces/1418/A.cpp) | `math` `*1000` | Sep/14/2020 20:57 | 
1751 | [F - Ants on a Circle](https://codeforces.com/contest/652/problem/F) | [GNU C++17 (64)](./codeforces/652/F.cpp) | `constructive algorithms` `math` `*2800` | Sep/14/2020 19:27 | 
1750 | [F - Xors on Segments](https://codeforces.com/contest/620/problem/F) | [GNU C++17 (64)](./codeforces/620/F.cpp) | `data structures` `strings` `trees` `*2800` | Sep/14/2020 05:31 | 
1749 | [D - Professor GukiZ and Two Arrays](https://codeforces.com/contest/620/problem/D) | [GNU C++17 (64)](./codeforces/620/D.cpp) | `binary search` `two pointers` `*2200` | Sep/14/2020 04:22 | 
1748 | [C - Pearls in a Row](https://codeforces.com/contest/620/problem/C) | [GNU C++17 (64)](./codeforces/620/C.cpp) | `greedy` `*1500` | Sep/14/2020 03:31 | 
1747 | [B - Grandfather Dovlet’s calculator](https://codeforces.com/contest/620/problem/B) | [GNU C++17 (64)](./codeforces/620/B.cpp) | `implementation` `*1000` | Sep/14/2020 03:27 | 
1746 | [A - Professor GukiZ's Robot](https://codeforces.com/contest/620/problem/A) | [GNU C++17 (64)](./codeforces/620/A.cpp) | `implementation` `math` `*800` | Sep/14/2020 03:24 | 
1745 | [F - Contrast](https://atcoder.jp/contests/abc178/tasks/abc178_f) | [C++ (GCC 9.2.1)](./atcoder/abc178/F.cpp) | `AtCoder` `*600` | Sep/13/2020 18:56 | 
1744 | [E - Dist Max](https://atcoder.jp/contests/abc178/tasks/abc178_e) | [C++ (GCC 9.2.1)](./atcoder/abc178/E.cpp) | `AtCoder` `*500` | Sep/13/2020 18:13 | 
1743 | [D - Redistribution](https://atcoder.jp/contests/abc178/tasks/abc178_d) | [C++ (GCC 9.2.1)](./atcoder/abc178/D.cpp) | `AtCoder` `*400` | Sep/13/2020 18:07 | 
1742 | [C - Ubiquity](https://atcoder.jp/contests/abc178/tasks/abc178_c) | [C++ (GCC 9.2.1)](./atcoder/abc178/C.cpp) | `AtCoder` `*300` | Sep/13/2020 18:04 | 
1741 | [B - Product Max](https://atcoder.jp/contests/abc178/tasks/abc178_b) | [C++ (GCC 9.2.1)](./atcoder/abc178/B.cpp) | `AtCoder` `*200` | Sep/13/2020 18:03 | 
1740 | [A - Not](https://atcoder.jp/contests/abc178/tasks/abc178_a) | [C++ (GCC 9.2.1)](./atcoder/abc178/A.cpp) | `AtCoder` `*100` | Sep/13/2020 18:00 | 
1739 | [E - Deleting Numbers](https://codeforces.com/contest/1406/problem/E) | [GNU C++17 (64)](./codeforces/1406/E.cpp) | `interactive` `math` `number theory` `*2600` | Sep/12/2020 22:45 | 
1738 | [D - Three Sequences](https://codeforces.com/contest/1406/problem/D) | [GNU C++17 (64)](./codeforces/1406/D.cpp) | `constructive algorithms` `data structures` `greedy` `math` `*2200` | Sep/12/2020 21:09 | 
1737 | [C - Link Cut Centroids](https://codeforces.com/contest/1406/problem/C) | [GNU C++17 (64)](./codeforces/1406/C.cpp) | `constructive algorithms` `dfs and similar` `graphs` `trees` `*1700` | Sep/12/2020 20:09 | 
1736 | [E - MUL](https://atcoder.jp/contests/arc085/tasks/arc085_c) | [C++ (GCC 9.2.1)](./atcoder/arc085/E.cpp) | `AtCoder` `*700` | Aug/31/2020 03:39 | 
1735 | [F - Squirrel Migration](https://atcoder.jp/contests/arc087/tasks/arc087_d) | [C++ (GCC 9.2.1)](./atcoder/arc087/F.cpp) | `AtCoder` `*800` | Aug/30/2020 20:15 | 
1734 | [D - Zigzags](https://codeforces.com/contest/1400/problem/D) | [GNU C++17 (64)](./codeforces/1400/D.cpp) | `brute force` `combinatorics` `data structures` `math` `two pointers` `*1900` | Aug/25/2020 21:01 | 
1733 | [B - RPG Protagonist](https://codeforces.com/contest/1400/problem/B) | [GNU C++17 (64)](./codeforces/1400/B.cpp) | `brute force` `greedy` `math` `*1700` | Aug/25/2020 20:53 | 
1732 | [A - String Similarity](https://codeforces.com/contest/1400/problem/A) | [GNU C++17 (64)](./codeforces/1400/A.cpp) | `constructive algorithms` `strings` `*800` | Aug/25/2020 20:40 | 
1731 | [E - Divide Square](https://codeforces.com/contest/1401/problem/E) | [GNU C++17 (64)](./codeforces/1401/E.cpp) | `data structures` `geometry` `implementation` `sortings` `*2400` | Aug/21/2020 23:15 | 
1730 | [B - Ternary Sequence](https://codeforces.com/contest/1401/problem/B) | [GNU C++17 (64)](./codeforces/1401/B.cpp) | `constructive algorithms` `greedy` `math` `*1100` | Aug/21/2020 21:47 | 
1729 | [D - Maximum Distributed Tree](https://codeforces.com/contest/1401/problem/D) | [GNU C++17 (64)](./codeforces/1401/D.cpp) | `dfs and similar` `dp` `greedy` `implementation` `math` `number theory` `sortings` `trees` `*1800` | Aug/21/2020 21:34 | 
1728 | [C - Mere Array](https://codeforces.com/contest/1401/problem/C) | [GNU C++17 (64)](./codeforces/1401/C.cpp) | `constructive algorithms` `math` `number theory` `sortings` `*1300` | Aug/21/2020 21:15 | 
1727 | [A - Distance and Axis](https://codeforces.com/contest/1401/problem/A) | [GNU C++17 (64)](./codeforces/1401/A.cpp) | `constructive algorithms` `math` `*900` | Aug/21/2020 20:46 | 
1726 | [E - Or Plus Max](https://atcoder.jp/contests/arc100/tasks/arc100_c) | [C++ (GCC 9.2.1)](./atcoder/arc100/E.cpp) | `AtCoder` `*700` | Aug/19/2020 16:12 | 
1725 | [F - Independent Set](https://codeforces.com/contest/1332/problem/F) | [GNU C++17 (64)](./codeforces/1332/F.cpp) | `dfs and similar` `dp` `trees` `*2500` | Aug/19/2020 15:39 | 
1724 | [E - Omkar and Duck](https://codeforces.com/contest/1392/problem/E) | [GNU C++17 (64)](./codeforces/1392/E.cpp) | `bitmasks` `constructive algorithms` `interactive` `math` `*2100` | Aug/16/2020 23:31 | 
1723 | [D - Omkar and Bed Wars](https://codeforces.com/contest/1392/problem/D) | [GNU C++17 (64)](./codeforces/1392/D.cpp) | `dp` `greedy` `*1700` | Aug/16/2020 21:29 | 
1722 | [C - Omkar and Waterslide](https://codeforces.com/contest/1392/problem/C) | [GNU C++17 (64)](./codeforces/1392/C.cpp) | `greedy` `implementation` `*1200` | Aug/16/2020 20:55 | 
1721 | [B - Omkar and Infinity Clock](https://codeforces.com/contest/1392/problem/B) | [GNU C++17 (64)](./codeforces/1392/B.cpp) | `implementation` `math` `*800` | Aug/16/2020 20:44 | 
1720 | [A - Omkar and Password](https://codeforces.com/contest/1392/problem/A) | [GNU C++17 (64)](./codeforces/1392/A.cpp) | `greedy` `math` `*800` | Aug/16/2020 20:37 | 
1719 | [F - Making Palindrome](https://atcoder.jp/contests/abc175/tasks/abc175_f) | [C++ (GCC 9.2.1)](./atcoder/abc175/F.cpp) | `AtCoder` `*600` | Aug/15/2020 20:07 | 
1718 | [E - Picking Goods](https://atcoder.jp/contests/abc175/tasks/abc175_e) | [C++ (GCC 9.2.1)](./atcoder/abc175/E.cpp) | `AtCoder` `*500` | Aug/15/2020 18:45 | 
1717 | [D - Moving Piece](https://atcoder.jp/contests/abc175/tasks/abc175_d) | [C++ (GCC 9.2.1)](./atcoder/abc175/D.cpp) | `AtCoder` `*400` | Aug/15/2020 18:28 | 
1716 | [C - Walking Takahashi](https://atcoder.jp/contests/abc175/tasks/abc175_c) | [C++ (GCC 9.2.1)](./atcoder/abc175/C.cpp) | `AtCoder` `*300` | Aug/15/2020 18:11 | 
1715 | [B - Making Triangle](https://atcoder.jp/contests/abc175/tasks/abc175_b) | [C++ (GCC 9.2.1)](./atcoder/abc175/B.cpp) | `AtCoder` `*200` | Aug/15/2020 18:05 | 
1714 | [A - Rainy Season](https://atcoder.jp/contests/abc175/tasks/abc175_a) | [C++ (GCC 9.2.1)](./atcoder/abc175/A.cpp) | `AtCoder` `*100` | Aug/15/2020 18:02 | 
1713 | [F - Controversial Rounds](https://codeforces.com/contest/1398/problem/F) | [GNU C++17 (64)](./codeforces/1398/F.cpp) | `binary search` `data structures` `dp` `greedy` `two pointers` `*2500` | Aug/14/2020 22:31 | 
1712 | [E - Two Types of Spells](https://codeforces.com/contest/1398/problem/E) | [GNU C++17 (64)](./codeforces/1398/E.cpp) | `binary search` `data structures` `greedy` `implementation` `math` `sortings` `*2200` | Aug/14/2020 21:39 | 
1711 | [D - Colored Rectangles](https://codeforces.com/contest/1398/problem/D) | [GNU C++17 (64)](./codeforces/1398/D.cpp) | `dp` `greedy` `sortings` `*1800` | Aug/14/2020 20:58 | 
1710 | [B - Substring Removal Game](https://codeforces.com/contest/1398/problem/B) | [GNU C++17 (64)](./codeforces/1398/B.cpp) | `games` `greedy` `sortings` `*800` | Aug/14/2020 20:45 | 
1709 | [C - Good Subarrays](https://codeforces.com/contest/1398/problem/C) | [GNU C++17 (64)](./codeforces/1398/C.cpp) | `data structures` `dp` `math` `*1600` | Aug/14/2020 20:40 | 
1708 | [A - Bad Triangle](https://codeforces.com/contest/1398/problem/A) | [GNU C++17 (64)](./codeforces/1398/A.cpp) | `geometry` `math` `*800` | Aug/14/2020 20:37 | 
1707 | [B - CopyCopyCopyCopyCopy](https://codeforces.com/contest/1325/problem/B) | [PyPy 3](./codeforces/1325/B.py) | `greedy` `implementation` `*800` | Aug/14/2020 17:55 | 
1706 | [A - Boboniu Chats with Du](https://codeforces.com/contest/1394/problem/A) | [GNU C++17 (64)](./codeforces/1394/A.cpp) | `dp` `greedy` `sortings` `two pointers` `*1800` | Aug/12/2020 20:51 | 
1705 | [D - 505](https://codeforces.com/contest/1391/problem/D) | [GNU C++17 (64)](./codeforces/1391/D.cpp) | `bitmasks` `brute force` `constructive algorithms` `dp` `greedy` `implementation` `*2000` | Aug/09/2020 21:23 | 
1704 | [C - Cyclic Permutations ](https://codeforces.com/contest/1391/problem/C) | [GNU C++17 (64)](./codeforces/1391/C.cpp) | `combinatorics` `dp` `graphs` `math` `*1500` | Aug/09/2020 20:58 | 
1703 | [B - Fix You](https://codeforces.com/contest/1391/problem/B) | [GNU C++17 (64)](./codeforces/1391/B.cpp) | `brute force` `greedy` `implementation` `*800` | Aug/09/2020 20:42 | 
1702 | [A - Suborrays](https://codeforces.com/contest/1391/problem/A) | [GNU C++17 (64)](./codeforces/1391/A.cpp) | `constructive algorithms` `math` `*800` | Aug/09/2020 20:36 | 
1701 | [B - First Second](https://atcoder.jp/contests/agc047/tasks/agc047_b) | [C++ (GCC 9.2.1)](./atcoder/agc047/B.cpp) | `AtCoder` `*700` | Aug/09/2020 19:45 | 
1700 | [A - Integer Product](https://atcoder.jp/contests/agc047/tasks/agc047_a) | [C++ (GCC 9.2.1)](./atcoder/agc047/A.cpp) | `AtCoder` `*300` | Aug/09/2020 19:18 | 
1699 | [C - Product Modulo](https://atcoder.jp/contests/agc047/tasks/agc047_c) | [C++ (GCC 9.2.1)](./atcoder/agc047/C.cpp) | `AtCoder` `*800` | Aug/09/2020 19:17 | 
1698 | [F - Yet Another Segments Subset](https://codeforces.com/contest/1399/problem/F) | [GNU C++17 (64)](./codeforces/1399/F.cpp) | `data structures` `dp` `graphs` `sortings` `*2300` | Aug/05/2020 23:07 | 
1697 | [E2 - Weights Division (hard version)](https://codeforces.com/contest/1399/problem/E2) | [GNU C++17 (64)](./codeforces/1399/E2.cpp) | `binary search` `dfs and similar` `greedy` `sortings` `trees` `two pointers` `*2200` | Aug/05/2020 22:34 | 
1696 | [E1 - Weights Division (easy version)](https://codeforces.com/contest/1399/problem/E1) | [GNU C++17 (64)](./codeforces/1399/E1.cpp) | `data structures` `dfs and similar` `greedy` `trees` `*2000` | Aug/05/2020 21:31 | 
1695 | [D - Binary String To Subsequences](https://codeforces.com/contest/1399/problem/D) | [GNU C++17 (64)](./codeforces/1399/D.cpp) | `constructive algorithms` `data structures` `greedy` `implementation` `*1500` | Aug/05/2020 21:02 | 
1694 | [C - Boats Competition](https://codeforces.com/contest/1399/problem/C) | [GNU C++17 (64)](./codeforces/1399/C.cpp) | `brute force` `greedy` `two pointers` `*1200` | Aug/05/2020 20:52 | 
1693 | [B - Gifts Fixing](https://codeforces.com/contest/1399/problem/B) | [GNU C++17 (64)](./codeforces/1399/B.cpp) | `greedy` `*800` | Aug/05/2020 20:42 | 
1692 | [A - Remove Smallest](https://codeforces.com/contest/1399/problem/A) | [GNU C++17 (64)](./codeforces/1399/A.cpp) | `greedy` `sortings` `*800` | Aug/05/2020 20:37 | 
1691 | [D - Segment Intersections](https://codeforces.com/contest/1389/problem/D) | [GNU C++17 (64)](./codeforces/1389/D.cpp) | `brute force` `greedy` `implementation` `math` `*2100` | Jul/29/2020 21:51 | 
1690 | [B - Array Walk](https://codeforces.com/contest/1389/problem/B) | [GNU C++17 (64)](./codeforces/1389/B.cpp) | `brute force` `dp` `greedy` `*1600` | Jul/29/2020 21:01 | 
1689 | [D - Small Multiple](https://atcoder.jp/contests/arc084/tasks/arc084_b) | [C++ (GCC 9.2.1)](./atcoder/arc084/D.cpp) | `AtCoder` `*700` | Jul/01/2020 01:26 | 
1688 | [D - XOR Replace](https://atcoder.jp/contests/agc016/tasks/agc016_d) | [C++ (GCC 9.2.1)](./atcoder/agc016/D.cpp) | `AtCoder` `*1000` | Jun/30/2020 00:38 | 
1687 | [E - RGB Sequence](https://atcoder.jp/contests/arc074/tasks/arc074_c) | [C++ (GCC 9.2.1)](./atcoder/arc074/E.cpp) | `AtCoder` `*800` | Jun/27/2020 01:26 | 
1686 | [F - Many Moves](https://atcoder.jp/contests/arc073/tasks/arc073_d) | [C++ (GCC 9.2.1)](./atcoder/arc073/F.cpp) | `AtCoder` `*900` | Jun/27/2020 00:46 | 
1685 | [D - No Need](https://atcoder.jp/contests/arc070/tasks/arc070_b) | [C++ (GCC 9.2.1)](./atcoder/arc070/D.cpp) | `AtCoder` `*600` | Jun/26/2020 02:01 | 
1684 | [F - Flags](https://atcoder.jp/contests/arc069/tasks/arc069_d) | [C++ (GCC 9.2.1)](./atcoder/arc069/F.cpp) | `AtCoder` `*1200` | Jun/26/2020 01:16 | 
1683 | [E - Snuke Line](https://atcoder.jp/contests/arc068/tasks/arc068_c) | [C++ (GCC 9.2.1)](./atcoder/arc068/E.cpp) | `AtCoder` `*700` | Jun/25/2020 01:11 | 
1682 | [E - Grouping](https://atcoder.jp/contests/arc067/tasks/arc067_c) | [C++ (GCC 9.2.1)](./atcoder/arc067/E.cpp) | `AtCoder` `*600` | Jun/22/2020 06:32 | 
1681 | [F - Contest with Drinks Hard](https://atcoder.jp/contests/arc066/tasks/arc066_d) | [C++ (GCC 9.2.1)](./atcoder/arc066/F.cpp) | `AtCoder` `*1400` | Jun/22/2020 05:45 | 
1680 | [E - Addition and Subtraction Hard](https://atcoder.jp/contests/arc066/tasks/arc066_c) | [C++ (GCC 9.2.1)](./atcoder/arc066/E.cpp) | `AtCoder` `*900` | Jun/22/2020 02:33 | 
1679 | [F2 - The Hidden Pair (Hard Version)](https://codeforces.com/contest/1370/problem/F2) | [GNU C++17 (64)](./codeforces/1370/F2.cpp) | `binary search` `dfs and similar` `graphs` `interactive` `shortest paths` `trees` `*2700` | Jun/21/2020 00:17 | 
1678 | [F1 - The Hidden Pair (Easy Version)](https://codeforces.com/contest/1370/problem/F1) | [GNU C++17 (64)](./codeforces/1370/F1.cpp) | `binary search` `dfs and similar` `graphs` `interactive` `shortest paths` `trees` `*2400` | Jun/20/2020 22:48 | 
1677 | [D - Odd-Even Subsequence](https://codeforces.com/contest/1370/problem/D) | [GNU C++17 (64)](./codeforces/1370/D.cpp) | `binary search` `dp` `dsu` `greedy` `implementation` `*2000` | Jun/20/2020 22:12 | 
1676 | [C - Number Game](https://codeforces.com/contest/1370/problem/C) | [GNU C++17 (64)](./codeforces/1370/C.cpp) | `games` `math` `number theory` `*1400` | Jun/20/2020 21:41 | 
1675 | [B - GCD Compression](https://codeforces.com/contest/1370/problem/B) | [GNU C++17 (64)](./codeforces/1370/B.cpp) | `constructive algorithms` `math` `number theory` `*1100` | Jun/20/2020 20:48 | 
1674 | [A - Maximum GCD](https://codeforces.com/contest/1370/problem/A) | [GNU C++17 (64)](./codeforces/1370/A.cpp) | `greedy` `implementation` `math` `number theory` `*800` | Jun/20/2020 20:36 | 
1673 | [B - Extension](https://atcoder.jp/contests/agc046/tasks/agc046_b) | [C++ (GCC 9.2.1)](./atcoder/agc046/B.cpp) | `AtCoder` `*600` | Jun/20/2020 18:29 | 
1672 | [A - Takahashikun, The Strider](https://atcoder.jp/contests/agc046/tasks/agc046_a) | [C++ (GCC 9.2.1)](./atcoder/agc046/A.cpp) | `AtCoder` `*200` | Jun/20/2020 18:04 | 
1671 | [E - Beautiful Subarrays](https://codeforces.com/contest/665/problem/E) | [GNU C++17 (64)](./codeforces/665/E.cpp) | `data structures` `divide and conquer` `strings` `trees` `*2100` | Jun/20/2020 00:20 | 
1670 | [C - Even Picture](https://codeforces.com/contest/1368/problem/C) | [GNU C++17 (64)](./codeforces/1368/C.cpp) | `constructive algorithms` `*1500` | Jun/18/2020 21:22 | 
1669 | [B - Codeforces Subsequences](https://codeforces.com/contest/1368/problem/B) | [GNU C++17 (64)](./codeforces/1368/B.cpp) | `brute force` `constructive algorithms` `greedy` `math` `strings` `*1500` | Jun/18/2020 20:54 | 
1668 | [A - C+=](https://codeforces.com/contest/1368/problem/A) | [GNU C++17 (64)](./codeforces/1368/A.cpp) | `brute force` `greedy` `implementation` `math` `*800` | Jun/18/2020 20:47 | 
1667 | [E - Reverses](https://codeforces.com/contest/906/problem/E) | [GNU C++17 (64)](./codeforces/906/E.cpp) | `dp` `string suffix structures` `strings` `*3300` | Jun/18/2020 00:24 | 
1666 | [D - Task On The Board](https://codeforces.com/contest/1367/problem/D) | [GNU C++17 (64)](./codeforces/1367/D.cpp) | `constructive algorithms` `greedy` `implementation` `sortings` `*1800` | Jun/16/2020 22:24 | 
1665 | [E - Necklace Assembly](https://codeforces.com/contest/1367/problem/E) | [GNU C++17 (64)](./codeforces/1367/E.cpp) | `brute force` `dfs and similar` `dp` `graphs` `greedy` `number theory` `*1900` | Jun/16/2020 21:29 | 
1664 | [C - Social Distance](https://codeforces.com/contest/1367/problem/C) | [GNU C++17 (64)](./codeforces/1367/C.cpp) | `constructive algorithms` `greedy` `math` `*1300` | Jun/16/2020 20:52 | 
1663 | [A - Short Substrings](https://codeforces.com/contest/1367/problem/A) | [GNU C++17 (64)](./codeforces/1367/A.cpp) | `implementation` `strings` `*800` | Jun/16/2020 20:37 | 
1662 | [E - Little Elephant and Strings](https://codeforces.com/contest/204/problem/E) | [GNU C++17 (64)](./codeforces/204/E.cpp) | `data structures` `implementation` `string suffix structures` `two pointers` `*2800` | Jun/16/2020 17:47 | 
1661 | [F - Expensive Strings](https://codeforces.com/contest/616/problem/F) | [GNU C++17 (64)](./codeforces/616/F.cpp) | `string suffix structures` `strings` `*2700` | Jun/16/2020 15:34 | 
1660 | [E - X-OR](https://codeforces.com/contest/1364/problem/E) | [GNU C++17 (64)](./codeforces/1364/E.cpp) | `bitmasks` `constructive algorithms` `divide and conquer` `interactive` `probabilities` `*2700` | Jun/13/2020 23:46 | 
1659 | [D - Ehab's Last Corollary](https://codeforces.com/contest/1364/problem/D) | [GNU C++17 (64)](./codeforces/1364/D.cpp) | `constructive algorithms` `dfs and similar` `graphs` `greedy` `implementation` `trees` `*2100` | Jun/13/2020 22:10 | 
1658 | [C - Ehab and Prefix MEXs](https://codeforces.com/contest/1364/problem/C) | [GNU C++17 (64)](./codeforces/1364/C.cpp) | `brute force` `constructive algorithms` `greedy` `*1600` | Jun/13/2020 21:36 | 
1657 | [B - Most socially-distanced subsequence](https://codeforces.com/contest/1364/problem/B) | [GNU C++17 (64)](./codeforces/1364/B.cpp) | `greedy` `two pointers` `*1300` | Jun/13/2020 21:17 | 
1656 | [A - XXXXX](https://codeforces.com/contest/1364/problem/A) | [GNU C++17 (64)](./codeforces/1364/A.cpp) | `brute force` `data structures` `number theory` `two pointers` `*1200` | Jun/13/2020 21:08 | 
1655 | [D - Knapsack Queries on a tree](https://atcoder.jp/contests/tokiomarine2020/tasks/tokiomarine2020_d) | [C++ (GCC 9.2.1)](./atcoder/tokiomarine2020/D.cpp) | `AtCoder` `*700` | Jun/13/2020 19:11 | 
1654 | [C - Lamps](https://atcoder.jp/contests/tokiomarine2020/tasks/tokiomarine2020_c) | [C++ (GCC 9.2.1)](./atcoder/tokiomarine2020/C.cpp) | `AtCoder` `*500` | Jun/13/2020 18:30 | 
1653 | [B - Tag](https://atcoder.jp/contests/tokiomarine2020/tasks/tokiomarine2020_b) | [C++ (GCC 9.2.1)](./atcoder/tokiomarine2020/B.cpp) | `AtCoder` `*200` | Jun/13/2020 18:20 | 
1652 | [A - Nickname](https://atcoder.jp/contests/tokiomarine2020/tasks/tokiomarine2020_a) | [C++ (GCC 9.2.1)](./atcoder/tokiomarine2020/A.cpp) | `AtCoder` `*100` | Jun/13/2020 18:01 | 
1651 | [E - Two Arrays](https://codeforces.com/contest/1366/problem/E) | [GNU C++17 (64)](./codeforces/1366/E.cpp) | `binary search` `brute force` `combinatorics` `constructive algorithms` `dp` `two pointers` `*2100` | Jun/11/2020 21:54 | 
1650 | [D - Two Divisors](https://codeforces.com/contest/1366/problem/D) | [GNU C++17 (64)](./codeforces/1366/D.cpp) | `constructive algorithms` `math` `number theory` `*2000` | Jun/11/2020 21:38 | 
1649 | [C - Palindromic Paths](https://codeforces.com/contest/1366/problem/C) | [GNU C++17 (64)](./codeforces/1366/C.cpp) | `greedy` `math` `*1500` | Jun/11/2020 20:57 | 
1648 | [B - Shuffle](https://codeforces.com/contest/1366/problem/B) | [GNU C++17 (64)](./codeforces/1366/B.cpp) | `math` `two pointers` `*1300` | Jun/11/2020 20:50 | 
1647 | [A - Shovels and Swords](https://codeforces.com/contest/1366/problem/A) | [GNU C++17 (64)](./codeforces/1366/A.cpp) | `binary search` `greedy` `math` `*1100` | Jun/11/2020 20:45 | 
1646 | [F - Rotated Palindromes](https://atcoder.jp/contests/arc064/tasks/arc064_d) | [C++14 (GCC 5.4.1)](./atcoder/arc064/F.cpp) | `AtCoder` `*1000` | Jun/11/2020 18:45 | 
1645 | [F - Painting Graphs with AtCoDeer](https://atcoder.jp/contests/arc062/tasks/arc062_d) | [C++14 (GCC 5.4.1)](./atcoder/arc062/F.cpp) | `AtCoder` `*1300` | Jun/11/2020 16:43 | 
1644 | [F - Card Game for Three](https://atcoder.jp/contests/arc061/tasks/arc061_d) | [C++14 (GCC 5.4.1)](./atcoder/arc061/F.cpp) | `AtCoder` `*1100` | Jun/11/2020 15:09 | 
1643 | [F - Best Representation](https://atcoder.jp/contests/arc060/tasks/arc060_d) | [C++14 (GCC 5.4.1)](./atcoder/arc060/F.cpp) | `AtCoder` `*900` | Jun/10/2020 21:44 | 
1642 | [E - Tak and Hotels](https://atcoder.jp/contests/arc060/tasks/arc060_c) | [C++14 (GCC 5.4.1)](./atcoder/arc060/E.cpp) | `AtCoder` `*700` | Jun/10/2020 20:59 | 
1641 | [F - Unhappy Hacking](https://atcoder.jp/contests/arc059/tasks/arc059_d) | [C++14 (GCC 5.4.1)](./atcoder/arc059/F.cpp) | `AtCoder` `*800` | Jun/10/2020 20:10 | 
1640 | [E - Children and Candies](https://atcoder.jp/contests/arc059/tasks/arc059_c) | [C++14 (GCC 5.4.1)](./atcoder/arc059/E.cpp) | `AtCoder` `*800` | Jun/10/2020 19:49 | 
1639 | [E - Iroha and Haiku](https://atcoder.jp/contests/arc058/tasks/arc058_c) | [C++14 (GCC 5.4.1)](./atcoder/arc058/E.cpp) | `AtCoder` `*700` | Jun/10/2020 17:05 | 
1638 | [F - Football](https://codeforces.com/contest/1240/problem/F) | [GNU C++17 (64)](./codeforces/1240/F.cpp) | `graphs` `*3100` | Jun/10/2020 14:06 | 
1637 | [A - Privatization](https://codeforces.com/contest/212/problem/A) | [GNU C++17 (64)](./codeforces/212/A.cpp) | `flows` `graphs` `*3000` | Jun/10/2020 13:54 | 
1636 | [F - Edge coloring of bipartite graph](https://codeforces.com/contest/600/problem/F) | [GNU C++17 (64)](./codeforces/600/F.cpp) | `graphs` `*2800` | Jun/10/2020 13:26 | 
1635 | [D - Solve The Maze](https://codeforces.com/contest/1365/problem/D) | [GNU C++17 (64)](./codeforces/1365/D.cpp) | `constructive algorithms` `dfs and similar` `dsu` `graphs` `greedy` `implementation` `shortest paths` `*1700` | Jun/07/2020 21:39 | 
1634 | [C - Rotation Matching](https://codeforces.com/contest/1365/problem/C) | [GNU C++17 (64)](./codeforces/1365/C.cpp) | `constructive algorithms` `data structures` `greedy` `implementation` `*1400` | Jun/07/2020 21:05 | 
1633 | [B - Trouble Sort](https://codeforces.com/contest/1365/problem/B) | [GNU C++17 (64)](./codeforces/1365/B.cpp) | `constructive algorithms` `implementation` `*1300` | Jun/07/2020 20:51 | 
1632 | [A - Matrix Game](https://codeforces.com/contest/1365/problem/A) | [GNU C++17 (64)](./codeforces/1365/A.cpp) | `games` `greedy` `implementation` `*1100` | Jun/07/2020 20:41 | 
1631 | [G - Design Tutorial: Increase the Constraints](https://codeforces.com/contest/472/problem/G) | [GNU C++17 (64)](./codeforces/472/G.cpp) | `bitmasks` `data structures` `fft` `*2800` | Jun/07/2020 16:38 | 
1630 | [E - Strange Function](https://codeforces.com/contest/1310/problem/E) | [GNU C++17 (64)](./codeforces/1310/E.cpp) | `dp` `*2900` | Jun/06/2020 11:00 | 
1629 | [C1 - Madhouse (Easy version)](https://codeforces.com/contest/1286/problem/C1) | [GNU C++17 (64)](./codeforces/1286/C1.cpp) | `brute force` `constructive algorithms` `interactive` `math` `*2400` | Jun/05/2020 13:44 | 
1628 | [B - Numbers on Tree](https://codeforces.com/contest/1286/problem/B) | [GNU C++17 (64)](./codeforces/1286/B.cpp) | `constructive algorithms` `data structures` `dfs and similar` `graphs` `greedy` `trees` `*1800` | Jun/05/2020 13:26 | 
1627 | [A - Garland](https://codeforces.com/contest/1286/problem/A) | [GNU C++17 (64)](./codeforces/1286/A.cpp) | `dp` `greedy` `sortings` `*1800` | Jun/05/2020 12:59 | 
1626 | [A - Johnny and Contribution](https://codeforces.com/contest/1361/problem/A) | [GNU C++17 (64)](./codeforces/1361/A.cpp) | `constructive algorithms` `graphs` `greedy` `sortings` `*1700` | Jun/04/2020 20:53 | 
1625 | [D - Increase Sequence](https://codeforces.com/contest/466/problem/D) | [GNU C++17 (64)](./codeforces/466/D.cpp) | `combinatorics` `dp` `*2100` | Jun/04/2020 12:41 | 
1624 | [F - Group Projects](https://codeforces.com/contest/626/problem/F) | [GNU C++17 (64)](./codeforces/626/F.cpp) | `dp` `*2400` | Jun/04/2020 12:14 | 
1623 | [D - Slime and Biscuits](https://codeforces.com/contest/1349/problem/D) | [GNU C++17 (64)](./codeforces/1349/D.cpp) | `math` `probabilities` `*3200` | Jun/02/2020 15:34 | 
1622 | [F - Many Easy Problems](https://atcoder.jp/contests/agc005/tasks/agc005_f) | [C++14 (GCC 5.4.1)](./atcoder/agc005/F.cpp) | `AtCoder` `*1900` | Jun/01/2020 15:09 | 
1621 | [F - RC Kaboom Show](https://codeforces.com/contest/1359/problem/F) | [GNU C++17](./codeforces/1359/F.cpp) | `binary search` `brute force` `data structures` `geometry` `math` `*2900` | May/29/2020 01:31 | 
1620 | [D - Yet Another Yet Another Task](https://codeforces.com/contest/1359/problem/D) | [GNU C++17 (64)](./codeforces/1359/D.cpp) | `data structures` `dp` `implementation` `two pointers` `*2000` | May/29/2020 01:28 | 
1619 | [C - Mixing Water](https://codeforces.com/contest/1359/problem/C) | [GNU C++17 (64)](./codeforces/1359/C.cpp) | `binary search` `math` `*1700` | May/28/2020 21:27 | 
1618 | [E - Modular Stability](https://codeforces.com/contest/1359/problem/E) | [GNU C++17 (64)](./codeforces/1359/E.cpp) | `combinatorics` `math` `number theory` `*2000` | May/28/2020 21:08 | 
1617 | [B - New Theatre Square](https://codeforces.com/contest/1359/problem/B) | [GNU C++17 (64)](./codeforces/1359/B.cpp) | `brute force` `dp` `greedy` `implementation` `two pointers` `*1000` | May/28/2020 20:48 | 
1616 | [A - Berland Poker](https://codeforces.com/contest/1359/problem/A) | [GNU C++17 (64)](./codeforces/1359/A.cpp) | `brute force` `greedy` `math` `*1000` | May/28/2020 20:41 | 
1615 | [H - Binary Median](https://codeforces.com/contest/1360/problem/H) | [GNU C++17 (64)](./codeforces/1360/H.cpp) | `binary search` `bitmasks` `brute force` `constructive algorithms` `*2100` | May/24/2020 20:46 | 
1614 | [G - A/B Matrix](https://codeforces.com/contest/1360/problem/G) | [GNU C++17 (64)](./codeforces/1360/G.cpp) | `constructive algorithms` `greedy` `math` `*1900` | May/24/2020 20:20 | 
1613 | [F - Spy-string](https://codeforces.com/contest/1360/problem/F) | [GNU C++17 (64)](./codeforces/1360/F.cpp) | `bitmasks` `brute force` `constructive algorithms` `dp` `hashing` `strings` `*1700` | May/24/2020 20:07 | 
1612 | [E - Polygon](https://codeforces.com/contest/1360/problem/E) | [GNU C++17 (64)](./codeforces/1360/E.cpp) | `dp` `graphs` `implementation` `shortest paths` `*1300` | May/24/2020 19:58 | 
1611 | [D - Buying Shovels](https://codeforces.com/contest/1360/problem/D) | [GNU C++17 (64)](./codeforces/1360/D.cpp) | `math` `number theory` `*1300` | May/24/2020 19:52 | 
1610 | [C - Similar Pairs](https://codeforces.com/contest/1360/problem/C) | [GNU C++17 (64)](./codeforces/1360/C.cpp) | `constructive algorithms` `graph matchings` `greedy` `sortings` `*1100` | May/24/2020 19:46 | 
1609 | [B - Honest Coach](https://codeforces.com/contest/1360/problem/B) | [GNU C++17 (64)](./codeforces/1360/B.cpp) | `greedy` `sortings` `*800` | May/24/2020 19:41 | 
1608 | [A - Minimal Square](https://codeforces.com/contest/1360/problem/A) | [GNU C++17 (64)](./codeforces/1360/A.cpp) | `greedy` `math` `*800` | May/24/2020 19:38 | 
1607 | [C - U2](https://codeforces.com/contest/1142/problem/C) | [GNU C++17 (64)](./codeforces/1142/C.cpp) | `geometry` `*2400` | May/20/2020 03:54 | 
1606 | [F - Disjoint Triangles](https://codeforces.com/contest/1025/problem/F) | [GNU C++17 (64)](./codeforces/1025/F.cpp) | `geometry` `*2700` | May/20/2020 03:18 | 
1605 | [F - Enclose All](https://atcoder.jp/contests/abc151/tasks/abc151_f) | [C++14 (GCC 5.4.1)](./atcoder/abc151/F.cpp) | `AtCoder` `*600` | May/19/2020 02:08 | 
1604 | [E - Space Rescuers](https://codeforces.com/contest/106/problem/E) | [GNU C++17 (64)](./codeforces/106/E.cpp) | `geometry` `ternary search` `*2100` | May/18/2020 19:12 | 
1603 | [F - Geometers Anonymous Club](https://codeforces.com/contest/1195/problem/F) | [GNU C++17 (64)](./codeforces/1195/F.cpp) | `data structures` `geometry` `math` `sortings` `*2500` | May/18/2020 00:48 | 
1602 | [G - Mass Change Queries](https://codeforces.com/contest/911/problem/G) | [GNU C++17 (64)](./codeforces/911/G.cpp) | `data structures` `*2500` | May/17/2020 02:19 | 
1601 | [F - Guess Divisors Count](https://codeforces.com/contest/1355/problem/F) | [GNU C++17 (64)](./codeforces/1355/F.cpp) | `constructive algorithms` `interactive` `number theory` `*2600` | May/16/2020 21:16 | 
1600 | [E - Restorer Distance](https://codeforces.com/contest/1355/problem/E) | [GNU C++17 (64)](./codeforces/1355/E.cpp) | `binary search` `greedy` `math` `sortings` `ternary search` `*2100` | May/16/2020 18:44 | 
1599 | [D - Game With Array](https://codeforces.com/contest/1355/problem/D) | [GNU C++17 (64)](./codeforces/1355/D.cpp) | `constructive algorithms` `math` `*1400` | May/16/2020 18:13 | 
1598 | [C - Count Triangles](https://codeforces.com/contest/1355/problem/C) | [GNU C++17 (64)](./codeforces/1355/C.cpp) | `binary search` `implementation` `math` `two pointers` `*1800` | May/16/2020 18:00 | 
1597 | [B - Young Explorers](https://codeforces.com/contest/1355/problem/B) | [GNU C++17 (64)](./codeforces/1355/B.cpp) | `dp` `greedy` `sortings` `*1200` | May/16/2020 17:45 | 
1596 | [A - Sequence with Digits](https://codeforces.com/contest/1355/problem/A) | [GNU C++14](./codeforces/1355/A.cpp) | `brute force` `implementation` `math` `*1200` | May/16/2020 17:39 | 
1595 | [F - Cut Length](https://codeforces.com/contest/598/problem/F) | [GNU C++14](./codeforces/598/F.cpp) | `geometry` `*2900` | May/16/2020 06:04 | 
1594 | [B - Polygons](https://codeforces.com/contest/166/problem/B) | [GNU C++17 (64)](./codeforces/166/B.cpp) | `geometry` `sortings` `*2100` | May/15/2020 19:00 | 
1593 | [D - Area of Two Circles' Intersection](https://codeforces.com/contest/600/problem/D) | [GNU C++17 (64)](./codeforces/600/D.cpp) | `geometry` `*2000` | May/15/2020 00:41 | 
1592 | [F - Decreasing Heights](https://codeforces.com/contest/1353/problem/F) | [GNU C++17 (64)](./codeforces/1353/F.cpp) | `brute force` `dp` `*2200` | May/14/2020 22:05 | 
1591 | [E - K-periodic Garland](https://codeforces.com/contest/1353/problem/E) | [GNU C++14](./codeforces/1353/E.cpp) | `brute force` `dp` `greedy` `*1900` | May/14/2020 21:37 | 
1590 | [D - Constructing the Array](https://codeforces.com/contest/1353/problem/D) | [GNU C++14](./codeforces/1353/D.cpp) | `constructive algorithms` `data structures` `sortings` `*1600` | May/14/2020 21:12 | 
1589 | [C - Board Moves](https://codeforces.com/contest/1353/problem/C) | [GNU C++17 (64)](./codeforces/1353/C.cpp) | `math` `*1000` | May/14/2020 20:58 | 
1588 | [B - Two Arrays And Swaps](https://codeforces.com/contest/1353/problem/B) | [GNU C++17 (64)](./codeforces/1353/B.cpp) | `greedy` `sortings` `*800` | May/14/2020 20:45 | 
1587 | [A - Most Unstable Array](https://codeforces.com/contest/1353/problem/A) | [GNU C++17 (64)](./codeforces/1353/A.cpp) | `constructive algorithms` `greedy` `math` `*800` | May/14/2020 20:38 | 
1586 | [B - Orac and Medians](https://codeforces.com/contest/1349/problem/B) | [GNU C++17 (64)](./codeforces/1349/B.cpp) | `constructive algorithms` `greedy` `math` `*2000` | May/12/2020 21:50 | 
1585 | [A - Orac and LCM](https://codeforces.com/contest/1349/problem/A) | [GNU C++14](./codeforces/1349/A.cpp) | `data structures` `math` `number theory` `*1600` | May/12/2020 18:45 | 
1584 | [C - Smaller-Suffix-Free Sequences](https://atcoder.jp/contests/ddcc2020-final/tasks/ddcc2020_final_c) | [C++14 (GCC 5.4.1)](./atcoder/ddcc2020-final/C.cpp) | `AtCoder` `*800` | May/11/2020 15:19 | 
1583 | [F - Bracket Sequencing](https://atcoder.jp/contests/abc167/tasks/abc167_f) | [C++ (GCC 9.2.1)](./atcoder/abc167/F.cpp) | `AtCoder` `*600` | May/11/2020 01:19 | 
1582 | [E - Colorful Blocks](https://atcoder.jp/contests/abc167/tasks/abc167_e) | [C++ (GCC 9.2.1)](./atcoder/abc167/E.cpp) | `AtCoder` `*500` | May/10/2020 19:50 | 
1581 | [D - Teleporter](https://atcoder.jp/contests/abc167/tasks/abc167_d) | [C++ (GCC 9.2.1)](./atcoder/abc167/D.cpp) | `AtCoder` `*400` | May/10/2020 18:22 | 
1580 | [C - Skill Up](https://atcoder.jp/contests/abc167/tasks/abc167_c) | [C++ (GCC 9.2.1)](./atcoder/abc167/C.cpp) | `AtCoder` `*300` | May/10/2020 18:11 | 
1579 | [B - Easy Linear Programming](https://atcoder.jp/contests/abc167/tasks/abc167_b) | [C++ (GCC 9.2.1)](./atcoder/abc167/B.cpp) | `AtCoder` `*200` | May/10/2020 18:05 | 
1578 | [A - Registration](https://atcoder.jp/contests/abc167/tasks/abc167_a) | [C++ (GCC 9.2.1)](./atcoder/abc167/A.cpp) | `AtCoder` `*100` | May/10/2020 18:02 | 
1577 | [F - Binary String Reconstruction](https://codeforces.com/contest/1352/problem/F) | [GNU C++17 (64)](./codeforces/1352/F.cpp) | `constructive algorithms` `dfs and similar` `math` `*1500` | May/09/2020 21:23 | 
1576 | [G - Special Permutation](https://codeforces.com/contest/1352/problem/G) | [GNU C++17 (64)](./codeforces/1352/G.cpp) | `constructive algorithms` `*1600` | May/09/2020 21:11 | 
1575 | [E - Special Elements](https://codeforces.com/contest/1352/problem/E) | [GNU C++17 (64)](./codeforces/1352/E.cpp) | `brute force` `implementation` `two pointers` `*1500` | May/09/2020 21:02 | 
1574 | [D - Alice, Bob and Candies](https://codeforces.com/contest/1352/problem/D) | [GNU C++17 (64)](./codeforces/1352/D.cpp) | `implementation` `*1300` | May/09/2020 20:56 | 
1573 | [C - K-th Not Divisible by n](https://codeforces.com/contest/1352/problem/C) | [GNU C++17 (64)](./codeforces/1352/C.cpp) | `binary search` `math` `*1200` | May/09/2020 20:45 | 
1572 | [B - Same Parity Summands](https://codeforces.com/contest/1352/problem/B) | [GNU C++17 (64)](./codeforces/1352/B.cpp) | `constructive algorithms` `math` `*1200` | May/09/2020 20:42 | 
1571 | [A - Sum of Round Numbers](https://codeforces.com/contest/1352/problem/A) | [GNU C++17 (64)](./codeforces/1352/A.cpp) | `implementation` `math` `*800` | May/09/2020 20:37 | 
1570 | [B - Monopole Magnets](https://codeforces.com/contest/1344/problem/B) | [GNU C++17 (64)](./codeforces/1344/B.cpp) | `constructive algorithms` `dfs and similar` `dsu` `graphs` `*2000` | May/06/2020 21:24 | 
1569 | [A - Hilbert's Hotel](https://codeforces.com/contest/1344/problem/A) | [GNU C++17 (64)](./codeforces/1344/A.cpp) | `math` `number theory` `sortings` `*1600` | May/06/2020 20:47 | 
1568 | [E - Square Root of Permutation](https://codeforces.com/contest/612/problem/E) | [GNU C++17 (64)](./codeforces/612/E.cpp) | `combinatorics` `constructive algorithms` `dfs and similar` `graphs` `math` `*2200` | May/05/2020 20:19 | 
1567 | [E - Birthday](https://codeforces.com/contest/590/problem/E) | [GNU C++17 (64)](./codeforces/590/E.cpp) | `graph matchings` `strings` `*3200` | May/03/2020 16:12 | 
1566 | [C - Heidi and Library (hard)](https://codeforces.com/contest/802/problem/C) | [GNU C++17 (64)](./codeforces/802/C.cpp) | `flows` `*2600` | May/02/2020 07:37 | 
1565 | [G - Four Melodies](https://codeforces.com/contest/818/problem/G) | [GNU C++17 (64)](./codeforces/818/G.cpp) | `flows` `graphs` `*2600` | May/01/2020 16:37 | 
1564 | [E - Pumping Stations](https://codeforces.com/contest/343/problem/E) | [GNU C++17 (64)](./codeforces/343/E.cpp) | `brute force` `dfs and similar` `divide and conquer` `flows` `graphs` `greedy` `trees` `*2900` | Apr/30/2020 13:25 | 
1563 | [D - Generating Sets](https://codeforces.com/contest/722/problem/D) | [GNU C++17 (64)](./codeforces/722/D.cpp) | `binary search` `data structures` `dfs and similar` `greedy` `strings` `trees` `*1900` | Apr/29/2020 12:44 | 
1562 | [D - Captain America](https://codeforces.com/contest/704/problem/D) | [GNU C++17 (64)](./codeforces/704/D.cpp) | `flows` `greedy` `*3100` | Apr/28/2020 12:49 | 
1561 | [F - Red-Blue Graph](https://codeforces.com/contest/1288/problem/F) | [GNU C++17 (64)](./codeforces/1288/F.cpp) | `constructive algorithms` `flows` `*2900` | Apr/28/2020 09:49 | 
1560 | [G - (Zero XOR Subset)-less](https://codeforces.com/contest/1101/problem/G) | [GNU C++17 (64)](./codeforces/1101/G.cpp) | `math` `matrices` `*2300` | Apr/27/2020 04:19 | 
1559 | [G - Another Meme Problem](https://codeforces.com/contest/1194/problem/G) | [GNU C++17 (64)](./codeforces/1194/G.cpp) | `dp` `*2700` | Apr/25/2020 09:02 | 
1558 | [F - Unicyclic Graph Counting](https://atcoder.jp/contests/cf17-tournament-round3-open/tasks/asaporo2_f) | [C++14 (GCC 5.4.1)](./atcoder/cf17-tournament-round3-open/F.cpp) | `AtCoder` `*1000` | Apr/25/2020 01:38 | 
1557 | [F - The Sum of the k-th Powers](https://codeforces.com/contest/622/problem/F) | [GNU C++17 (64)](./codeforces/622/F.cpp) | `math` `*2600` | Apr/22/2020 19:23 | 
1556 | [F - path pass i](https://atcoder.jp/contests/abc163/tasks/abc163_f) | [C++ (GCC 9.2.1)](./atcoder/abc163/F.cpp) | `AtCoder` `*600` | Apr/19/2020 23:52 | 
1555 | [G - Can Bash Save the Day?](https://codeforces.com/contest/757/problem/G) | [GNU C++17 (64)](./codeforces/757/G.cpp) | `data structures` `divide and conquer` `graphs` `trees` `*3400` | Apr/15/2020 02:05 | 
1554 | [E - Digit Tree](https://codeforces.com/contest/716/problem/E) | [GNU C++17 (64)](./codeforces/716/E.cpp) | `dfs and similar` `divide and conquer` `trees` `*2700` | Apr/13/2020 23:36 | 
1553 | [F - Robots on a Grid](https://codeforces.com/contest/1335/problem/F) | [GNU C++17 (64)](./codeforces/1335/F.cpp) | `data structures` `dfs and similar` `dsu` `graphs` `greedy` `matrices` `*2200` | Apr/13/2020 22:15 | 
1552 | [E2 - Three Blocks Palindrome (hard version)](https://codeforces.com/contest/1335/problem/E2) | [GNU C++17 (64)](./codeforces/1335/E2.cpp) | `brute force` `data structures` `dp` `two pointers` `*1800` | Apr/13/2020 20:48 | 
1551 | [E - Sum of gcd of Tuples (Hard)](https://atcoder.jp/contests/abc162/tasks/abc162_e) | [C++ (GCC 9.2.1)](./atcoder/abc162/E.cpp) | `AtCoder` `*500` | Apr/12/2020 22:31 | 
1550 | [G - Substring Search](https://codeforces.com/contest/1334/problem/G) | [GNU C++17 (64)](./codeforces/1334/G.cpp) | `bitmasks` `brute force` `fft` `*2900` | Apr/10/2020 23:04 | 
1549 | [F - Machine Learning](https://codeforces.com/contest/940/problem/F) | [GNU C++14](./codeforces/940/F.cpp) | `brute force` `data structures` `*2600` | Apr/09/2020 23:38 | 
1548 | [D - Powerful array](https://codeforces.com/contest/86/problem/D) | [GNU C++17 (64)](./codeforces/86/D.cpp) | `data structures` `implementation` `math` `two pointers` `*2200` | Apr/09/2020 04:37 | 
1547 | [E - Yutori](https://atcoder.jp/contests/abc161/tasks/abc161_e) | [C++14 (GCC 5.4.1)](./atcoder/abc161/E.cpp) | `AtCoder` `*500` | Apr/04/2020 19:12 | 
1546 | [F - Division or Subtraction](https://atcoder.jp/contests/abc161/tasks/abc161_f) | [C++14 (GCC 5.4.1)](./atcoder/abc161/F.cpp) | `AtCoder` `*600` | Apr/04/2020 18:47 | 
1545 | [D - Lunlun Number](https://atcoder.jp/contests/abc161/tasks/abc161_d) | [C++14 (GCC 5.4.1)](./atcoder/abc161/D.cpp) | `AtCoder` `*400` | Apr/04/2020 18:24 | 
1544 | [C - Replacing Integer](https://atcoder.jp/contests/abc161/tasks/abc161_c) | [C++14 (GCC 5.4.1)](./atcoder/abc161/C.cpp) | `AtCoder` `*300` | Apr/04/2020 18:08 | 
1543 | [B - Popular Vote](https://atcoder.jp/contests/abc161/tasks/abc161_b) | [C++14 (GCC 5.4.1)](./atcoder/abc161/B.cpp) | `AtCoder` `*200` | Apr/04/2020 18:05 | 
1542 | [A - ABC Swap](https://atcoder.jp/contests/abc161/tasks/abc161_a) | [C++14 (GCC 5.4.1)](./atcoder/abc161/A.cpp) | `AtCoder` `*100` | Apr/04/2020 18:01 | 
1541 | [D - Timofey and a flat tree](https://codeforces.com/contest/763/problem/D) | [GNU C++17 (64)](./codeforces/763/D.cpp) | `data structures` `graphs` `hashing` `shortest paths` `trees` `*2900` | Apr/02/2020 01:03 | 
1540 | [A - Amusement Park](https://codeforces.com/contest/1193/problem/A) | [GNU C++17 (64)](./codeforces/1193/A.cpp) | `*special problem` `dp` `math` | Apr/01/2020 17:56 | 
1539 | [E - Mother of Dragons](https://codeforces.com/contest/839/problem/E) | [GNU C++17 (64)](./codeforces/839/E.cpp) | `brute force` `graphs` `math` `meet-in-the-middle` `*2700` | Mar/30/2020 16:58 | 
1538 | [E - Helping Hiasat ](https://codeforces.com/contest/1105/problem/E) | [GNU C++17 (64)](./codeforces/1105/E.cpp) | `bitmasks` `brute force` `dp` `meet-in-the-middle` `*2200` | Mar/30/2020 16:41 | 
1537 | [F - Substrings in a String](https://codeforces.com/contest/914/problem/F) | [GNU C++17 (64)](./codeforces/914/F.cpp) | `bitmasks` `brute force` `data structures` `string suffix structures` `strings` `*3000` | Mar/29/2020 07:21 | 
1536 | [E - More Queries to Array...](https://codeforces.com/contest/266/problem/E) | [GNU C++17](./codeforces/266/E.cpp) | `data structures` `math` `*2500` | Mar/29/2020 04:08 | 
1535 | [F - Distributing Integers](https://atcoder.jp/contests/abc160/tasks/abc160_f) | [C++14 (GCC 5.4.1)](./atcoder/abc160/F.cpp) | `AtCoder` `*600` | Mar/28/2020 19:40 | 
1534 | [E - Red and Green Apples](https://atcoder.jp/contests/abc160/tasks/abc160_e) | [C++14 (GCC 5.4.1)](./atcoder/abc160/E.cpp) | `AtCoder` `*500` | Mar/28/2020 18:29 | 
1533 | [D - Line++](https://atcoder.jp/contests/abc160/tasks/abc160_d) | [C++14 (GCC 5.4.1)](./atcoder/abc160/D.cpp) | `AtCoder` `*400` | Mar/28/2020 18:15 | 
1532 | [C - Traveling Salesman around Lake](https://atcoder.jp/contests/abc160/tasks/abc160_c) | [C++14 (GCC 5.4.1)](./atcoder/abc160/C.cpp) | `AtCoder` `*300` | Mar/28/2020 18:07 | 
1531 | [B - Golden Coins](https://atcoder.jp/contests/abc160/tasks/abc160_b) | [C++14 (GCC 5.4.1)](./atcoder/abc160/B.cpp) | `AtCoder` `*200` | Mar/28/2020 18:03 | 
1530 | [A - Coffee](https://atcoder.jp/contests/abc160/tasks/abc160_a) | [C++14 (GCC 5.4.1)](./atcoder/abc160/A.cpp) | `AtCoder` `*100` | Mar/28/2020 18:01 | 
1529 | [E - Dividing Chocolate](https://atcoder.jp/contests/abc159/tasks/abc159_e) | [C++14 (GCC 5.4.1)](./atcoder/abc159/E.cpp) | `AtCoder` `*500` | Mar/22/2020 18:52 | 
1528 | [D - Banned K](https://atcoder.jp/contests/abc159/tasks/abc159_d) | [C++14 (GCC 5.4.1)](./atcoder/abc159/D.cpp) | `AtCoder` `*400` | Mar/22/2020 18:13 | 
1527 | [C - Maximum Volume](https://atcoder.jp/contests/abc159/tasks/abc159_c) | [C++14 (GCC 5.4.1)](./atcoder/abc159/C.cpp) | `AtCoder` `*300` | Mar/22/2020 18:09 | 
1526 | [B - String Palindrome](https://atcoder.jp/contests/abc159/tasks/abc159_b) | [C++14 (GCC 5.4.1)](./atcoder/abc159/B.cpp) | `AtCoder` `*200` | Mar/22/2020 18:05 | 
1525 | [A - The Number of Even Pairs](https://atcoder.jp/contests/abc159/tasks/abc159_a) | [C++14 (GCC 5.4.1)](./atcoder/abc159/A.cpp) | `AtCoder` `*100` | Mar/22/2020 18:02 | 
1524 | [C - Sqrt Inequality](https://atcoder.jp/contests/panasonic2020/tasks/panasonic2020_c) | [C++14 (GCC 5.4.1)](./atcoder/panasonic2020/C.cpp) | `AtCoder` `*300` | Mar/14/2020 18:16 | 
1523 | [B - Bishop](https://atcoder.jp/contests/panasonic2020/tasks/panasonic2020_b) | [C++14 (GCC 5.4.1)](./atcoder/panasonic2020/B.cpp) | `AtCoder` `*200` | Mar/14/2020 18:08 | 
1522 | [A - Kth Term](https://atcoder.jp/contests/panasonic2020/tasks/panasonic2020_a) | [C++14 (GCC 5.4.1)](./atcoder/panasonic2020/A.cpp) | `AtCoder` `*100` | Mar/14/2020 18:01 | 
1521 | [E - Sleeping Schedule](https://codeforces.com/contest/1324/problem/E) | [GNU C++17](./codeforces/1324/E.cpp) | `dp` `implementation` `*1700` | Mar/12/2020 19:44 | 
1520 | [F - Maximum White Subtree](https://codeforces.com/contest/1324/problem/F) | [GNU C++17](./codeforces/1324/F.cpp) | `dfs and similar` `dp` `graphs` `trees` `*1800` | Mar/12/2020 19:34 | 
1519 | [G - Autocompletion](https://codeforces.com/contest/1312/problem/G) | [GNU C++17](./codeforces/1312/G.cpp) | `data structures` `dfs and similar` `dp` `*2600` | Mar/10/2020 03:35 | 
1518 | [F - Attack on Red Kingdom](https://codeforces.com/contest/1312/problem/F) | [GNU C++17](./codeforces/1312/F.cpp) | `games` `two pointers` `*2500` | Mar/10/2020 02:08 | 
1517 | [E - Array Shrinking](https://codeforces.com/contest/1312/problem/E) | [GNU C++17](./codeforces/1312/E.cpp) | `dp` `greedy` `*2100` | Mar/10/2020 00:58 | 
1516 | [D - Count the Arrays](https://codeforces.com/contest/1312/problem/D) | [GNU C++17](./codeforces/1312/D.cpp) | `combinatorics` `math` `*1700` | Mar/09/2020 21:14 | 
1515 | [C - Adding Powers](https://codeforces.com/contest/1312/problem/C) | [GNU C++17](./codeforces/1312/C.cpp) | `bitmasks` `greedy` `implementation` `math` `number theory` `ternary search` `*1400` | Mar/09/2020 20:52 | 
1514 | [B - Bogosort](https://codeforces.com/contest/1312/problem/B) | [GNU C++17](./codeforces/1312/B.cpp) | `constructive algorithms` `sortings` `*1000` | Mar/09/2020 20:46 | 
1513 | [A - Two Regular Polygons](https://codeforces.com/contest/1312/problem/A) | [GNU C++17](./codeforces/1312/A.cpp) | `geometry` `greedy` `math` `number theory` `*800` | Mar/09/2020 20:38 | 
1512 | [F - Kuroni and the Punishment](https://codeforces.com/contest/1305/problem/F) | [GNU C++17](./codeforces/1305/F.cpp) | `math` `number theory` `probabilities` `*2500` | Mar/04/2020 00:19 | 
1511 | [D - Friend Suggestions](https://atcoder.jp/contests/abc157/tasks/abc157_d) | [C++14 (GCC 5.4.1)](./atcoder/abc157/D.cpp) | `AtCoder` `*400` | Mar/01/2020 18:38 | 
1510 | [C - Guess The Number](https://atcoder.jp/contests/abc157/tasks/abc157_c) | [C++14 (GCC 5.4.1)](./atcoder/abc157/C.cpp) | `AtCoder` `*300` | Mar/01/2020 18:26 | 
1509 | [B - Bingo](https://atcoder.jp/contests/abc157/tasks/abc157_b) | [C++14 (GCC 5.4.1)](./atcoder/abc157/B.cpp) | `AtCoder` `*200` | Mar/01/2020 18:16 | 
1508 | [A - Duplex Printing](https://atcoder.jp/contests/abc157/tasks/abc157_a) | [C++14 (GCC 5.4.1)](./atcoder/abc157/A.cpp) | `AtCoder` `*100` | Mar/01/2020 18:10 | 
1507 | [E - Simple String Queries](https://atcoder.jp/contests/abc157/tasks/abc157_e) | [C++14 (GCC 5.4.1)](./atcoder/abc157/E.cpp) | `AtCoder` `*500` | Mar/01/2020 18:07 | 
1506 | [F - Perils in Parallel](https://atcoder.jp/contests/abc155/tasks/abc155_f) | [C++14 (GCC 5.4.1)](./atcoder/abc155/F.cpp) | `AtCoder` `*600` | Feb/17/2020 01:08 | 
1505 | [D - Pairs](https://atcoder.jp/contests/abc155/tasks/abc155_d) | [C++14 (GCC 5.4.1)](./atcoder/abc155/D.cpp) | `AtCoder` `*400` | Feb/16/2020 19:22 | 
1504 | [E - Payment](https://atcoder.jp/contests/abc155/tasks/abc155_e) | [C++14 (GCC 5.4.1)](./atcoder/abc155/E.cpp) | `AtCoder` `*500` | Feb/16/2020 18:28 | 
1503 | [A - Poor](https://atcoder.jp/contests/abc155/tasks/abc155_a) | [C++14 (GCC 5.4.1)](./atcoder/abc155/A.cpp) | `AtCoder` `*100` | Feb/16/2020 18:08 | 
1502 | [C - Poll](https://atcoder.jp/contests/abc155/tasks/abc155_c) | [C++14 (GCC 5.4.1)](./atcoder/abc155/C.cpp) | `AtCoder` `*300` | Feb/16/2020 18:07 | 
1501 | [B - Papers, Please](https://atcoder.jp/contests/abc155/tasks/abc155_b) | [C++14 (GCC 5.4.1)](./atcoder/abc155/B.cpp) | `AtCoder` `*200` | Feb/16/2020 18:04 | 
1500 | [G - Sum of Prefix Sums](https://codeforces.com/contest/1303/problem/G) | [GNU C++17](./codeforces/1303/G.cpp) | `data structures` `divide and conquer` `geometry` `trees` `*2700` | Feb/13/2020 14:05 | 
1499 | [D - Fill The Bag](https://codeforces.com/contest/1303/problem/D) | [GNU C++17](./codeforces/1303/D.cpp) | `bitmasks` `greedy` `*1900` | Feb/12/2020 22:33 | 
1498 | [E - Erase Subsequences](https://codeforces.com/contest/1303/problem/E) | [GNU C++17](./codeforces/1303/E.cpp) | `dp` `strings` `*2200` | Feb/12/2020 22:09 | 
1497 | [C - Perfect Keyboard](https://codeforces.com/contest/1303/problem/C) | [GNU C++17](./codeforces/1303/C.cpp) | `dfs and similar` `greedy` `implementation` `*1600` | Feb/12/2020 21:11 | 
1496 | [B - National Project](https://codeforces.com/contest/1303/problem/B) | [GNU C++17](./codeforces/1303/B.cpp) | `math` `*1400` | Feb/12/2020 20:56 | 
1495 | [A - Erasing Zeroes](https://codeforces.com/contest/1303/problem/A) | [GNU C++17](./codeforces/1303/A.cpp) | `implementation` `strings` `*800` | Feb/12/2020 20:37 | 
1494 | [E1 - String Coloring (easy version)](https://codeforces.com/contest/1296/problem/E1) | [GNU C++17](./codeforces/1296/E1.cpp) | `constructive algorithms` `dp` `graphs` `greedy` `sortings` `*1800` | Feb/04/2020 22:32 | 
1493 | [E2 - String Coloring (hard version)](https://codeforces.com/contest/1296/problem/E2) | [GNU C++17](./codeforces/1296/E2.cpp) | `data structures` `dp` `*2000` | Feb/04/2020 22:30 | 
1492 | [F - Berland Beauty](https://codeforces.com/contest/1296/problem/F) | [GNU C++17](./codeforces/1296/F.cpp) | `constructive algorithms` `dfs and similar` `greedy` `sortings` `trees` `*2100` | Feb/04/2020 21:37 | 
1491 | [D - Fight with Monsters](https://codeforces.com/contest/1296/problem/D) | [GNU C++17](./codeforces/1296/D.cpp) | `greedy` `sortings` `*1500` | Feb/04/2020 21:10 | 
1490 | [C - Yet Another Walking Robot](https://codeforces.com/contest/1296/problem/C) | [GNU C++17](./codeforces/1296/C.cpp) | `data structures` `implementation` `*1500` | Feb/04/2020 21:00 | 
1489 | [B - Food Buying](https://codeforces.com/contest/1296/problem/B) | [GNU C++17](./codeforces/1296/B.cpp) | `math` `*900` | Feb/04/2020 20:48 | 
1488 | [A - Array with Odd Sum](https://codeforces.com/contest/1296/problem/A) | [GNU C++17](./codeforces/1296/A.cpp) | `math` `*800` | Feb/04/2020 20:38 | 
1487 | [D - Fuzzy Search](https://codeforces.com/contest/528/problem/D) | [GNU C++17](./codeforces/528/D.cpp) | `bitmasks` `brute force` `fft` `*2500` | Feb/04/2020 02:21 | 
1486 | [F - Good Contest](https://codeforces.com/contest/1295/problem/F) | [GNU C++17](./codeforces/1295/F.cpp) | `combinatorics` `dp` `probabilities` `*2700` | Jan/30/2020 01:47 | 
1485 | [C - Obtain The String](https://codeforces.com/contest/1295/problem/C) | [GNU C++17](./codeforces/1295/C.cpp) | `dp` `greedy` `strings` `*1600` | Jan/29/2020 21:22 | 
1484 | [D - Same GCDs](https://codeforces.com/contest/1295/problem/D) | [GNU C++17](./codeforces/1295/D.cpp) | `math` `number theory` `*1800` | Jan/29/2020 21:09 | 
1483 | [B - Infinite Prefixes](https://codeforces.com/contest/1295/problem/B) | [GNU C++17](./codeforces/1295/B.cpp) | `math` `strings` `*1700` | Jan/29/2020 20:56 | 
1482 | [A - Display The Number](https://codeforces.com/contest/1295/problem/A) | [GNU C++17](./codeforces/1295/A.cpp) | `greedy` `*900` | Jan/29/2020 20:41 | 
1481 | [G - Palindrome Partition](https://codeforces.com/contest/932/problem/G) | [GNU C++17](./codeforces/932/G.cpp) | `dp` `string suffix structures` `strings` `*2900` | Jan/29/2020 03:09 | 
1480 | [F - Forbidden Indices](https://codeforces.com/contest/873/problem/F) | [GNU C++17](./codeforces/873/F.cpp) | `dsu` `string suffix structures` `strings` `*2400` | Jan/27/2020 02:23 | 
1479 | [F - Silver Fox vs Monster](https://atcoder.jp/contests/abc153/tasks/abc153_f) | [C++14 (GCC 5.4.1)](./atcoder/abc153/F.cpp) | `AtCoder` `*600` | Jan/26/2020 18:38 | 
1478 | [D - Caracal vs Monster](https://atcoder.jp/contests/abc153/tasks/abc153_d) | [C++14 (GCC 5.4.1)](./atcoder/abc153/D.cpp) | `AtCoder` `*400` | Jan/26/2020 18:20 | 
1477 | [C - Fennec vs Monster](https://atcoder.jp/contests/abc153/tasks/abc153_c) | [C++14 (GCC 5.4.1)](./atcoder/abc153/C.cpp) | `AtCoder` `*300` | Jan/26/2020 18:17 | 
1476 | [B - Common Raccoon vs Monster](https://atcoder.jp/contests/abc153/tasks/abc153_b) | [C++14 (GCC 5.4.1)](./atcoder/abc153/B.cpp) | `AtCoder` `*200` | Jan/26/2020 18:14 | 
1475 | [A - Serval vs Monster](https://atcoder.jp/contests/abc153/tasks/abc153_a) | [C++14 (GCC 5.4.1)](./atcoder/abc153/A.cpp) | `AtCoder` `*100` | Jan/26/2020 18:12 | 
1474 | [E - Crested Ibis vs Monster](https://atcoder.jp/contests/abc153/tasks/abc153_e) | [C++14 (GCC 5.4.1)](./atcoder/abc153/E.cpp) | `AtCoder` `*500` | Jan/26/2020 18:11 | 
1473 | [C - Cyclical Quest](https://codeforces.com/contest/235/problem/C) | [GNU C++17](./codeforces/235/C.cpp) | `data structures` `string suffix structures` `strings` `*2700` | Jan/26/2020 15:28 | 
1472 | [G - Anthem of Berland](https://codeforces.com/contest/808/problem/G) | [GNU C++17](./codeforces/808/G.cpp) | `dp` `strings` `*2300` | Jan/24/2020 05:13 | 
1471 | [E - Obtain a Permutation](https://codeforces.com/contest/1294/problem/E) | [GNU C++17](./codeforces/1294/E.cpp) | `greedy` `implementation` `math` `*1900` | Jan/23/2020 23:08 | 
1470 | [F - Three Paths on a Tree](https://codeforces.com/contest/1294/problem/F) | [GNU C++17](./codeforces/1294/F.cpp) | `dfs and similar` `dp` `greedy` `trees` `*2000` | Jan/22/2020 22:18 | 
1469 | [B - Collecting Packages](https://codeforces.com/contest/1294/problem/B) | [GNU C++17](./codeforces/1294/B.cpp) | `implementation` `sortings` `*1200` | Jan/22/2020 21:21 | 
1468 | [D - MEX maximizing](https://codeforces.com/contest/1294/problem/D) | [GNU C++17](./codeforces/1294/D.cpp) | `data structures` `greedy` `implementation` `math` `*1600` | Jan/22/2020 21:11 | 
1467 | [C - Product of Three Numbers](https://codeforces.com/contest/1294/problem/C) | [GNU C++17](./codeforces/1294/C.cpp) | `greedy` `math` `number theory` `*1300` | Jan/22/2020 21:03 | 
1466 | [A - Collecting Coins](https://codeforces.com/contest/1294/problem/A) | [GNU C++17](./codeforces/1294/A.cpp) | `math` `*800` | Jan/22/2020 20:41 | 
1465 | [D - Semi Common Multiple](https://atcoder.jp/contests/abc150/tasks/abc150_d) | [C++14 (GCC 5.4.1)](./atcoder/abc150/D.cpp) | `AtCoder` `*400` | Jan/10/2020 18:59 | 
1464 | [C - Count Order](https://atcoder.jp/contests/abc150/tasks/abc150_c) | [C++14 (GCC 5.4.1)](./atcoder/abc150/C.cpp) | `AtCoder` `*300` | Jan/10/2020 18:46 | 
1463 | [B - Count ABC](https://atcoder.jp/contests/abc150/tasks/abc150_b) | [C++14 (GCC 5.4.1)](./atcoder/abc150/B.cpp) | `AtCoder` `*200` | Jan/10/2020 18:42 | 
1462 | [A - 500 Yen Coins](https://atcoder.jp/contests/abc150/tasks/abc150_a) | [C++14 (GCC 5.4.1)](./atcoder/abc150/A.cpp) | `AtCoder` `*100` | Jan/10/2020 18:37 | 
1461 | [F - Xor Shift](https://atcoder.jp/contests/abc150/tasks/abc150_f) | [C++14 (GCC 5.4.1)](./atcoder/abc150/F.cpp) | `AtCoder` `*600` | Jan/10/2020 18:35 | 
1460 | [G - Sum the Fibonacci](https://codeforces.com/contest/914/problem/G) | [GNU C++17](./codeforces/914/G.cpp) | `bitmasks` `divide and conquer` `dp` `fft` `math` `*2600` | Jan/03/2020 01:46 | 
1459 | [F - XOR Tree](https://atcoder.jp/contests/apc001/tasks/apc001_f) | [C++14 (GCC 5.4.1)](./atcoder/apc001/F.cpp) | `AtCoder` `*1000` | Jan/02/2020 00:06 | 
1458 | [D - Enchanted Artifact](https://codeforces.com/contest/1282/problem/D) | [GNU C++17](./codeforces/1282/D.cpp) | `constructive algorithms` `interactive` `strings` `*2300` | Dec/24/2019 23:13 | 
1457 | [E - Double Factorial](https://atcoder.jp/contests/abc148/tasks/abc148_e) | [C++14 (GCC 5.4.1)](./atcoder/abc148/E.cpp) | `AtCoder` `*500` | Dec/22/2019 18:17 | 
1456 | [D - Brick Break](https://atcoder.jp/contests/abc148/tasks/abc148_d) | [C++14 (GCC 5.4.1)](./atcoder/abc148/D.cpp) | `AtCoder` `*400` | Dec/22/2019 18:08 | 
1455 | [C - Snack](https://atcoder.jp/contests/abc148/tasks/abc148_c) | [C++14 (GCC 5.4.1)](./atcoder/abc148/C.cpp) | `AtCoder` `*300` | Dec/22/2019 18:05 | 
1454 | [B - Strings with the Same Length](https://atcoder.jp/contests/abc148/tasks/abc148_b) | [C++14 (GCC 5.4.1)](./atcoder/abc148/B.cpp) | `AtCoder` `*200` | Dec/22/2019 18:03 | 
1453 | [A - Round One](https://atcoder.jp/contests/abc148/tasks/abc148_a) | [C++14 (GCC 5.4.1)](./atcoder/abc148/A.cpp) | `AtCoder` `*100` | Dec/22/2019 18:01 | 
1452 | [C - Berry Jam](https://codeforces.com/contest/1278/problem/C) | [GNU C++11](./codeforces/1278/C.cpp) | `data structures` `dp` `greedy` `implementation` `*1700` | Dec/19/2019 22:51 | 
1451 | [D - Segment Tree](https://codeforces.com/contest/1278/problem/D) | [GNU C++11](./codeforces/1278/D.cpp) | `data structures` `dsu` `graphs` `trees` `*2100` | Dec/19/2019 21:59 | 
1450 | [B - A and B](https://codeforces.com/contest/1278/problem/B) | [GNU C++11](./codeforces/1278/B.cpp) | `greedy` `math` `*1500` | Dec/19/2019 20:59 | 
1449 | [A - Shuffle Hashing](https://codeforces.com/contest/1278/problem/A) | [GNU C++11](./codeforces/1278/A.cpp) | `brute force` `implementation` `strings` `*1000` | Dec/19/2019 20:39 | 
1448 | [C - Diverse Matrix](https://codeforces.com/contest/1266/problem/C) | [GNU C++17](./codeforces/1266/C.cpp) | `constructive algorithms` `greedy` `math` `number theory` `*1400` | Dec/17/2019 21:37 | 
1447 | [B - Dice Tower](https://codeforces.com/contest/1266/problem/B) | [GNU C++17](./codeforces/1266/B.cpp) | `constructive algorithms` `math` `*1000` | Dec/17/2019 21:23 | 
1446 | [A - Competitive Programmer](https://codeforces.com/contest/1266/problem/A) | [GNU C++17](./codeforces/1266/A.cpp) | `chinese remainder theorem` `math` `*1000` | Dec/17/2019 21:12 | 
1445 | [D - Portals](https://codeforces.com/contest/1271/problem/D) | [GNU C++17](./codeforces/1271/D.cpp) | `data structures` `dp` `greedy` `implementation` `sortings` `*2100` | Dec/15/2019 22:52 | 
1444 | [E - Common Number](https://codeforces.com/contest/1271/problem/E) | [GNU C++17](./codeforces/1271/E.cpp) | `binary search` `combinatorics` `dp` `math` `*2100` | Dec/15/2019 16:16 | 
1443 | [C - Shawarma Tent](https://codeforces.com/contest/1271/problem/C) | [GNU C++17](./codeforces/1271/C.cpp) | `brute force` `geometry` `greedy` `implementation` `*1300` | Dec/15/2019 15:45 | 
1442 | [B - Blocks](https://codeforces.com/contest/1271/problem/B) | [GNU C++17](./codeforces/1271/B.cpp) | `greedy` `math` `*1300` | Dec/15/2019 15:31 | 
1441 | [A - Suits](https://codeforces.com/contest/1271/problem/A) | [GNU C++17](./codeforces/1271/A.cpp) | `brute force` `greedy` `math` `*800` | Dec/15/2019 15:19 | 
1440 | [A - As Simple as One and Two](https://codeforces.com/contest/1276/problem/A) | [GNU C++17](./codeforces/1276/A.cpp) | `dp` `greedy` `*1400` | Dec/14/2019 17:20 | 
1439 | [F - Sum Difference](https://atcoder.jp/contests/abc147/tasks/abc147_f) | [C++14 (GCC 5.4.1)](./atcoder/abc147/F.cpp) | `AtCoder` `*600` | Dec/10/2019 16:33 | 
1438 | [E - Balanced Path](https://atcoder.jp/contests/abc147/tasks/abc147_e) | [C++14 (GCC 5.4.1)](./atcoder/abc147/E.cpp) | `AtCoder` `*500` | Dec/10/2019 15:46 | 
1437 | [K - Key Storage](https://codeforces.com/contest/1267/problem/K) | [GNU C++17](./codeforces/1267/K.cpp) | `combinatorics` `math` `*2100` | Dec/05/2019 19:52 | 
1436 | [J - Just Arrange the Icons](https://codeforces.com/contest/1267/problem/J) | [GNU C++17](./codeforces/1267/J.cpp) | `greedy` `implementation` `math` `*1800` | Dec/05/2019 18:22 | 
1435 | [L - Lexicography](https://codeforces.com/contest/1267/problem/L) | [GNU C++17](./codeforces/1267/L.cpp) | `constructive algorithms` `strings` `*1800` | Dec/05/2019 16:32 | 
1434 | [E - Elections](https://codeforces.com/contest/1267/problem/E) | [GNU C++17](./codeforces/1267/E.cpp) | `greedy` `*1700` | Dec/05/2019 16:19 | 
1433 | [B - Balls of Buma](https://codeforces.com/contest/1267/problem/B) | [GNU C++17](./codeforces/1267/B.cpp) | `*900` | Dec/05/2019 16:05 | 
1432 | [F - Colored Tree](https://codeforces.com/contest/1260/problem/F) | [GNU C++17](./codeforces/1260/F.cpp) | `data structures` `trees` `*2700` | Nov/28/2019 04:50 | 
1431 | [D - A Game with Traps](https://codeforces.com/contest/1260/problem/D) | [GNU C++17](./codeforces/1260/D.cpp) | `binary search` `dp` `greedy` `sortings` `*1900` | Nov/27/2019 21:29 | 
1430 | [C - Infinite Fence](https://codeforces.com/contest/1260/problem/C) | [GNU C++17](./codeforces/1260/C.cpp) | `greedy` `math` `number theory` `*1700` | Nov/27/2019 20:39 | 
1429 | [B - Obtain Two Zeroes](https://codeforces.com/contest/1260/problem/B) | [GNU C++17](./codeforces/1260/B.cpp) | `binary search` `math` `*1300` | Nov/27/2019 20:02 | 
1428 | [A - Heating](https://codeforces.com/contest/1260/problem/A) | [GNU C++17](./codeforces/1260/A.cpp) | `math` `*1000` | Nov/27/2019 19:56 | 
1427 | [E - Not Same](https://codeforces.com/contest/1261/problem/E) | [GNU C++17](./codeforces/1261/E.cpp) | `constructive algorithms` `greedy` `*2600` | Nov/26/2019 18:13 | 
1426 | [D2 - Wrong Answer on test 233 (Hard Version)](https://codeforces.com/contest/1261/problem/D2) | [GNU C++17](./codeforces/1261/D2.cpp) | `combinatorics` `fft` `math` `number theory` `*2400` | Nov/26/2019 18:03 | 
1425 | [D1 - Wrong Answer on test 233 (Easy Version)](https://codeforces.com/contest/1261/problem/D1) | [GNU C++17](./codeforces/1261/D1.cpp) | `combinatorics` `dp` `*2200` | Nov/26/2019 17:45 | 
1424 | [E - Rem of Sum is Num](https://atcoder.jp/contests/abc146/tasks/abc146_e) | [C++14 (GCC 5.4.1)](./atcoder/abc146/E.cpp) | `AtCoder` `*500` | Nov/24/2019 20:15 | 
1423 | [F - Sugoroku](https://atcoder.jp/contests/abc146/tasks/abc146_f) | [C++14 (GCC 5.4.1)](./atcoder/abc146/F.cpp) | `AtCoder` `*600` | Nov/24/2019 18:58 | 
1422 | [D - Coloring Edges on Tree](https://atcoder.jp/contests/abc146/tasks/abc146_d) | [C++14 (GCC 5.4.1)](./atcoder/abc146/D.cpp) | `AtCoder` `*400` | Nov/24/2019 18:23 | 
1421 | [C - Buy an Integer](https://atcoder.jp/contests/abc146/tasks/abc146_c) | [C++14 (GCC 5.4.1)](./atcoder/abc146/C.cpp) | `AtCoder` `*300` | Nov/24/2019 18:17 | 
1420 | [B - ROT N](https://atcoder.jp/contests/abc146/tasks/abc146_b) | [C++14 (GCC 5.4.1)](./atcoder/abc146/B.cpp) | `AtCoder` `*200` | Nov/24/2019 18:07 | 
1419 | [A - Can't Wait for Holiday](https://atcoder.jp/contests/abc146/tasks/abc146_a) | [C++14 (GCC 5.4.1)](./atcoder/abc146/A.cpp) | `AtCoder` `*100` | Nov/24/2019 18:05 | 
1418 | [B1 - Optimal Subsequences (Easy Version)](https://codeforces.com/contest/1261/problem/B1) | [GNU C++17](./codeforces/1261/B1.cpp) | `data structures` `dp` `greedy` `*1600` | Nov/24/2019 14:39 | 
1417 | [B2 - Optimal Subsequences (Hard Version)](https://codeforces.com/contest/1261/problem/B2) | [GNU C++17](./codeforces/1261/B2.cpp) | `binary search` `constructive algorithms` `data structures` `greedy` `sortings` `*1800` | Nov/24/2019 14:39 | 
1416 | [A - Messy](https://codeforces.com/contest/1261/problem/A) | [GNU C++17](./codeforces/1261/A.cpp) | `brute force` `constructive algorithms` `greedy` `implementation` `*1700` | Nov/24/2019 14:18 | 
1415 | [E - Majority of Balls](https://atcoder.jp/contests/ddcc2020-qual/tasks/ddcc2020_qual_e) | [C++14 (GCC 5.4.1)](./atcoder/ddcc2020-qual/E.cpp) | `AtCoder` `*800` | Nov/24/2019 03:33 | 
1414 | [D - Tree Queries](https://codeforces.com/contest/1254/problem/D) | [GNU C++17](./codeforces/1254/D.cpp) | `data structures` `probabilities` `trees` `*2700` | Nov/21/2019 16:26 | 
1413 | [B2 - Send Boxes to Alice (Hard Version)](https://codeforces.com/contest/1254/problem/B2) | [GNU C++17](./codeforces/1254/B2.cpp) | `constructive algorithms` `greedy` `math` `number theory` `ternary search` `two pointers` `*2100` | Nov/20/2019 00:52 | 
1412 | [B1 - Send Boxes to Alice (Easy Version)](https://codeforces.com/contest/1254/problem/B1) | [GNU C++17](./codeforces/1254/B1.cpp) | `constructive algorithms` `greedy` `math` `number theory` `ternary search` `two pointers` `*1800` | Nov/20/2019 00:51 | 
1411 | [F - Cheap Robot](https://codeforces.com/contest/1253/problem/F) | [GNU C++17](./codeforces/1253/F.cpp) | `binary search` `dsu` `graphs` `shortest paths` `trees` `*2500` | Nov/19/2019 16:46 | 
1410 | [E - Antenna Coverage](https://codeforces.com/contest/1253/problem/E) | [GNU C++17](./codeforces/1253/E.cpp) | `data structures` `dp` `greedy` `sortings` `*2200` | Nov/19/2019 14:23 | 
1409 | [G - Divisor Set](https://codeforces.com/contest/1257/problem/G) | [GNU C++17](./codeforces/1257/G.cpp) | `divide and conquer` `fft` `greedy` `math` `number theory` `*2600` | Nov/14/2019 00:17 | 
1408 | [F - Make Them Similar](https://codeforces.com/contest/1257/problem/F) | [GNU C++17](./codeforces/1257/F.cpp) | `bitmasks` `brute force` `hashing` `meet-in-the-middle` `*2400` | Nov/13/2019 23:49 | 
1407 | [E - The Contest](https://codeforces.com/contest/1257/problem/E) | [GNU C++17](./codeforces/1257/E.cpp) | `data structures` `dp` `greedy` `*2000` | Nov/13/2019 22:13 | 
1406 | [D - Yet Another Monster Killing Problem](https://codeforces.com/contest/1257/problem/D) | [GNU C++17](./codeforces/1257/D.cpp) | `binary search` `data structures` `dp` `greedy` `sortings` `two pointers` `*1700` | Nov/13/2019 21:17 | 
1405 | [C - Dominated Subarray](https://codeforces.com/contest/1257/problem/C) | [GNU C++17](./codeforces/1257/C.cpp) | `greedy` `implementation` `sortings` `strings` `two pointers` `*1200` | Nov/13/2019 20:55 | 
1404 | [B - Magic Stick](https://codeforces.com/contest/1257/problem/B) | [GNU C++17](./codeforces/1257/B.cpp) | `math` `*1000` | Nov/13/2019 20:45 | 
1403 | [A - Two Rival Students](https://codeforces.com/contest/1257/problem/A) | [GNU C++17](./codeforces/1257/A.cpp) | `greedy` `math` `*800` | Nov/13/2019 20:37 | 
1402 | [D - Game on Tree](https://atcoder.jp/contests/agc017/tasks/agc017_d) | [C++14 (GCC 5.4.1)](./atcoder/agc017/D.cpp) | `AtCoder` `*1100` | Nov/11/2019 23:12 | 
1401 | [B - Counting of Trees](https://atcoder.jp/contests/nikkei2019-2-qual/tasks/nikkei2019_2_qual_b) | [C++14 (GCC 5.4.1)](./atcoder/nikkei2019-2-qual/B.cpp) | `AtCoder` `*300` | Nov/09/2019 19:16 | 
1400 | [A - Sum of Two Integers](https://atcoder.jp/contests/nikkei2019-2-qual/tasks/nikkei2019_2_qual_a) | [C++14 (GCC 5.4.1)](./atcoder/nikkei2019-2-qual/A.cpp) | `AtCoder` `*100` | Nov/09/2019 18:01 | 
1399 | [B2 - Character Swap (Hard Version)](https://codeforces.com/contest/1243/problem/B2) | [GNU C++17](./codeforces/1243/B2.cpp) | `strings` `*1600` | Nov/06/2019 22:20 | 
1398 | [D - 0-1 MST](https://codeforces.com/contest/1243/problem/D) | [GNU C++17](./codeforces/1243/D.cpp) | `dfs and similar` `dsu` `graphs` `two pointers` `*1900` | Nov/06/2019 21:42 | 
1397 | [C - Tile Painting](https://codeforces.com/contest/1243/problem/C) | [GNU C++17](./codeforces/1243/C.cpp) | `number theory` `*1500` | Nov/06/2019 21:29 | 
1396 | [B1 - Character Swap (Easy Version)](https://codeforces.com/contest/1243/problem/B1) | [GNU C++17](./codeforces/1243/B1.cpp) | `strings` `*1000` | Nov/06/2019 21:15 | 
1395 | [A - Maximum Square](https://codeforces.com/contest/1243/problem/A) | [GNU C++17](./codeforces/1243/A.cpp) | `implementation` `*800` | Nov/06/2019 21:08 | 
1394 | [E - Yet Another Division Into Teams](https://codeforces.com/contest/1256/problem/E) | [GNU C++17](./codeforces/1256/E.cpp) | `dp` `greedy` `sortings` `*2000` | Nov/04/2019 20:52 | 
1393 | [F - Equalizing Two Strings](https://codeforces.com/contest/1256/problem/F) | [GNU C++17](./codeforces/1256/F.cpp) | `constructive algorithms` `sortings` `strings` `*2000` | Nov/04/2019 20:13 | 
1392 | [B - Two Contests](https://atcoder.jp/contests/agc040/tasks/agc040_b) | [C++14 (GCC 5.4.1)](./atcoder/agc040/B.cpp) | `AtCoder` `*600` | Nov/04/2019 02:39 | 
1391 | [A - ><](https://atcoder.jp/contests/agc040/tasks/agc040_a) | [C++14 (GCC 5.4.1)](./atcoder/agc040/A.cpp) | `AtCoder` `*300` | Nov/03/2019 21:14 | 
1390 | [F - Daniel and Spring Cleaning](https://codeforces.com/contest/1245/problem/F) | [GNU C++17](./codeforces/1245/F.cpp) | `bitmasks` `brute force` `combinatorics` `dp` `*2300` | Nov/02/2019 00:33 | 
1389 | [C - Constanze's Machine](https://codeforces.com/contest/1245/problem/C) | [GNU C++17](./codeforces/1245/C.cpp) | `dp` `*1400` | Nov/01/2019 21:28 | 
1388 | [B - Restricted RPS](https://codeforces.com/contest/1245/problem/B) | [GNU C++17](./codeforces/1245/B.cpp) | `constructive algorithms` `dp` `greedy` `*1200` | Nov/01/2019 21:21 | 
1387 | [A - Good ol' Numbers Coloring](https://codeforces.com/contest/1245/problem/A) | [GNU C++17](./codeforces/1245/A.cpp) | `math` `number theory` `*1000` | Nov/01/2019 20:39 | 
1386 | [F - GCD Groups 2](https://codeforces.com/contest/1198/problem/F) | [GNU C++17](./codeforces/1198/F.cpp) | `greedy` `number theory` `probabilities` `*2900` | Oct/30/2019 18:06 | 
1385 | [D - Water Bottle](https://atcoder.jp/contests/abc144/tasks/abc144_d) | [C++14 (GCC 5.4.1)](./atcoder/abc144/D.cpp) | `AtCoder` `*400` | Oct/27/2019 20:20 | 
1384 | [E - Gluttony](https://atcoder.jp/contests/abc144/tasks/abc144_e) | [C++14 (GCC 5.4.1)](./atcoder/abc144/E.cpp) | `AtCoder` `*500` | Oct/27/2019 18:48 | 
1383 | [C - Walk on Multiplication Table](https://atcoder.jp/contests/abc144/tasks/abc144_c) | [C++14 (GCC 5.4.1)](./atcoder/abc144/C.cpp) | `AtCoder` `*300` | Oct/27/2019 18:06 | 
1382 | [B - 81](https://atcoder.jp/contests/abc144/tasks/abc144_b) | [C++14 (GCC 5.4.1)](./atcoder/abc144/B.cpp) | `AtCoder` `*200` | Oct/27/2019 18:03 | 
1381 | [A - 9x9](https://atcoder.jp/contests/abc144/tasks/abc144_a) | [C++14 (GCC 5.4.1)](./atcoder/abc144/A.cpp) | `AtCoder` `*100` | Oct/27/2019 18:01 | 
1380 | [D - Salary Changing](https://codeforces.com/contest/1251/problem/D) | [GNU C++17](./codeforces/1251/D.cpp) | `binary search` `greedy` `sortings` `*1900` | Oct/24/2019 22:21 | 
1379 | [C - Minimize The Integer](https://codeforces.com/contest/1251/problem/C) | [GNU C++17](./codeforces/1251/C.cpp) | `greedy` `two pointers` `*1600` | Oct/24/2019 21:58 | 
1378 | [B - Binary Palindromes](https://codeforces.com/contest/1251/problem/B) | [GNU C++17](./codeforces/1251/B.cpp) | `greedy` `strings` `*1400` | Oct/24/2019 21:32 | 
1377 | [A - Broken Keyboard](https://codeforces.com/contest/1251/problem/A) | [GNU C++17](./codeforces/1251/A.cpp) | `brute force` `strings` `two pointers` `*1000` | Oct/24/2019 21:10 | 
1376 | [B2 - Books Exchange (hard version)](https://codeforces.com/contest/1249/problem/B2) | [GNU C++17](./codeforces/1249/B2.cpp) | `dfs and similar` `dsu` `math` `*1300` | Oct/22/2019 20:42 | 
1375 | [B1 - Books Exchange (easy version)](https://codeforces.com/contest/1249/problem/B1) | [GNU C++17](./codeforces/1249/B1.cpp) | `dsu` `math` `*1000` | Oct/22/2019 20:42 | 
1374 | [A - Yet Another Dividing into Teams](https://codeforces.com/contest/1249/problem/A) | [GNU C++17](./codeforces/1249/A.cpp) | `math` `*800` | Oct/22/2019 20:37 | 
1373 | [E - Travel by Car](https://atcoder.jp/contests/abc143/tasks/abc143_e) | [C++14 (GCC 5.4.1)](./atcoder/abc143/E.cpp) | `AtCoder` `*500` | Oct/19/2019 19:16 | 
1372 | [D - Triangles](https://atcoder.jp/contests/abc143/tasks/abc143_d) | [C++14 (GCC 5.4.1)](./atcoder/abc143/D.cpp) | `AtCoder` `*400` | Oct/19/2019 18:10 | 
1371 | [C - Slimes](https://atcoder.jp/contests/abc143/tasks/abc143_c) | [C++14 (GCC 5.4.1)](./atcoder/abc143/C.cpp) | `AtCoder` `*300` | Oct/19/2019 18:05 | 
1370 | [B - TAKOYAKI FESTIVAL 2019](https://atcoder.jp/contests/abc143/tasks/abc143_b) | [C++14 (GCC 5.4.1)](./atcoder/abc143/B.cpp) | `AtCoder` `*200` | Oct/19/2019 18:03 | 
1369 | [A - Curtain](https://atcoder.jp/contests/abc143/tasks/abc143_a) | [C++14 (GCC 5.4.1)](./atcoder/abc143/A.cpp) | `AtCoder` `*100` | Oct/19/2019 18:01 | 
1368 | [C - Labs](https://codeforces.com/contest/1236/problem/C) | [GNU C++17](./codeforces/1236/C.cpp) | `constructive algorithms` `greedy` `implementation` `*1300` | Oct/17/2019 20:37 | 
1367 | [B - Alice and the List of Presents](https://codeforces.com/contest/1236/problem/B) | [GNU C++17](./codeforces/1236/B.cpp) | `combinatorics` `math` `*1500` | Oct/17/2019 20:08 | 
1366 | [A - Stones](https://codeforces.com/contest/1236/problem/A) | [GNU C++17](./codeforces/1236/A.cpp) | `brute force` `greedy` `math` `*800` | Oct/17/2019 19:38 | 
1365 | [B - Balanced Tunnel](https://codeforces.com/contest/1237/problem/B) | [GNU C++17](./codeforces/1237/B.cpp) | `data structures` `sortings` `two pointers` `*1300` | Oct/17/2019 00:58 | 
1364 | [A - Balanced Rating Changes](https://codeforces.com/contest/1237/problem/A) | [GNU C++17](./codeforces/1237/A.cpp) | `implementation` `math` `*1000` | Oct/17/2019 00:58 | 
1363 | [D - Balanced Playlist](https://codeforces.com/contest/1237/problem/D) | [GNU C++17](./codeforces/1237/D.cpp) | `binary search` `data structures` `implementation` `*2000` | Oct/17/2019 00:56 | 
1362 | [C - The Football Season](https://codeforces.com/contest/1244/problem/C) | [GNU C++17](./codeforces/1244/C.cpp) | `brute force` `math` `number theory` `*2000` | Oct/13/2019 18:33 | 
1361 | [D - Paint the Tree](https://codeforces.com/contest/1244/problem/D) | [GNU C++17](./codeforces/1244/D.cpp) | `brute force` `constructive algorithms` `dp` `graphs` `implementation` `trees` `*1800` | Oct/13/2019 16:42 | 
1360 | [B - Rooms and Staircases](https://codeforces.com/contest/1244/problem/B) | [GNU C++17](./codeforces/1244/B.cpp) | `brute force` `implementation` `*1000` | Oct/13/2019 16:12 | 
1359 | [A - Pens and Pencils](https://codeforces.com/contest/1244/problem/A) | [GNU C++17](./codeforces/1244/A.cpp) | `math` `*800` | Oct/13/2019 16:04 | 
1358 | [E - Minimizing Difference](https://codeforces.com/contest/1244/problem/E) | [GNU C++17](./codeforces/1244/E.cpp) | `binary search` `constructive algorithms` `greedy` `sortings` `ternary search` `two pointers` `*2000` | Oct/13/2019 15:57 | 
1357 | [F1 - Pictures with Kittens (easy version)](https://codeforces.com/contest/1077/problem/F1) | [GNU C++17](./codeforces/1077/F1.cpp) | `dp` `*1900` | Oct/13/2019 02:25 | 
1356 | [F - Upgrading Cities](https://codeforces.com/contest/1062/problem/F) | [GNU C++17](./codeforces/1062/F.cpp) | `dfs and similar` `graphs` `*2900` | Oct/13/2019 02:05 | 
1355 | [D - AB-string](https://codeforces.com/contest/1238/problem/D) | [GNU C++17](./codeforces/1238/D.cpp) | `binary search` `combinatorics` `dp` `strings` `*1900` | Oct/08/2019 22:35 | 
1354 | [C - Standard Free2play](https://codeforces.com/contest/1238/problem/C) | [GNU C++17](./codeforces/1238/C.cpp) | `dp` `greedy` `math` `*1600` | Oct/08/2019 21:57 | 
1353 | [E - Keyboard Purchase](https://codeforces.com/contest/1238/problem/E) | [GNU C++17](./codeforces/1238/E.cpp) | `bitmasks` `dp` `*2200` | Oct/08/2019 21:23 | 
1352 | [B - Kill `Em All](https://codeforces.com/contest/1238/problem/B) | [GNU C++17](./codeforces/1238/B.cpp) | `greedy` `sortings` `*1300` | Oct/08/2019 20:48 | 
1351 | [A - Prime Subtraction](https://codeforces.com/contest/1238/problem/A) | [GNU C++17](./codeforces/1238/A.cpp) | `math` `number theory` `*900` | Oct/08/2019 20:37 | 
1350 | [F - Yet Another Substring Reverse](https://codeforces.com/contest/1234/problem/F) | [GNU C++17](./codeforces/1234/F.cpp) | `bitmasks` `dp` `*2200` | Oct/01/2019 23:22 | 
1349 | [C - LCMs](https://atcoder.jp/contests/agc038/tasks/agc038_c) | [C++14 (GCC 5.4.1)](./atcoder/agc038/C.cpp) | `AtCoder` `*700` | Sep/21/2019 20:52 | 
1348 | [D - Unique Path](https://atcoder.jp/contests/agc038/tasks/agc038_d) | [C++14 (GCC 5.4.1)](./atcoder/agc038/D.cpp) | `AtCoder` `*700` | Sep/21/2019 20:04 | 
1347 | [B - Sorting a Segment](https://atcoder.jp/contests/agc038/tasks/agc038_b) | [C++14 (GCC 5.4.1)](./atcoder/agc038/B.cpp) | `AtCoder` `*700` | Sep/21/2019 18:56 | 
1346 | [A - 01 Matrix](https://atcoder.jp/contests/agc038/tasks/agc038_a) | [C++14 (GCC 5.4.1)](./atcoder/agc038/A.cpp) | `AtCoder` `*300` | Sep/21/2019 18:09 | 
1345 | [B - Knights](https://codeforces.com/contest/1221/problem/B) | [GNU C++17](./codeforces/1221/B.cpp) | `constructive algorithms` `greedy` `*1100` | Sep/19/2019 21:16 | 
1344 | [A - 2048 Game](https://codeforces.com/contest/1221/problem/A) | [GNU C++17](./codeforces/1221/A.cpp) | `brute force` `greedy` `math` `*1000` | Sep/19/2019 20:42 | 
1343 | [D - Alex and Julian](https://codeforces.com/contest/1220/problem/D) | [GNU C++17](./codeforces/1220/D.cpp) | `bitmasks` `math` `number theory` `*1900` | Sep/19/2019 16:54 | 
1342 | [E - Tourism](https://codeforces.com/contest/1220/problem/E) | [GNU C++17](./codeforces/1220/E.cpp) | `dfs and similar` `dp` `dsu` `graphs` `greedy` `trees` `*2200` | Sep/19/2019 02:01 | 
1341 | [F - Koala and Notebook](https://codeforces.com/contest/1209/problem/F) | [GNU C++17](./codeforces/1209/F.cpp) | `data structures` `dfs and similar` `graphs` `shortest paths` `strings` `trees` `*2600` | Sep/16/2019 18:37 | 
1340 | [F - Xor Sum 3](https://atcoder.jp/contests/abc141/tasks/abc141_f) | [C++14 (GCC 5.4.1)](./atcoder/abc141/F.cpp) | `AtCoder` `*600` | Sep/15/2019 20:58 | 
1339 | [F - Workout plan](https://codeforces.com/contest/1218/problem/F) | [GNU C++17](./codeforces/1218/F.cpp) | `data structures` `greedy` `*1500` | Sep/15/2019 20:07 | 
1338 | [E - Product Tuples](https://codeforces.com/contest/1218/problem/E) | [GNU C++17](./codeforces/1218/E.cpp) | `divide and conquer` `fft` `*2500` | Sep/15/2019 19:53 | 
1337 | [E - Marbles](https://codeforces.com/contest/1215/problem/E) | [GNU C++17](./codeforces/1215/E.cpp) | `bitmasks` `dp` `*2200` | Sep/15/2019 18:12 | 
1336 | [D - Ticket Game](https://codeforces.com/contest/1215/problem/D) | [GNU C++17](./codeforces/1215/D.cpp) | `games` `greedy` `math` `*1700` | Sep/15/2019 17:41 | 
1335 | [C - Swap Letters](https://codeforces.com/contest/1215/problem/C) | [GNU C++17](./codeforces/1215/C.cpp) | `constructive algorithms` `greedy` `*1500` | Sep/15/2019 17:03 | 
1334 | [B - The Number of Products](https://codeforces.com/contest/1215/problem/B) | [GNU C++17](./codeforces/1215/B.cpp) | `combinatorics` `dp` `implementation` `*1400` | Sep/15/2019 16:47 | 
1333 | [A - Yellow Cards](https://codeforces.com/contest/1215/problem/A) | [GNU C++17](./codeforces/1215/A.cpp) | `greedy` `implementation` `math` `*1000` | Sep/15/2019 16:42 | 
1332 | [E1 - Rotate Columns (easy version)](https://codeforces.com/contest/1209/problem/E1) | [GNU C++17](./codeforces/1209/E1.cpp) | `bitmasks` `brute force` `dp` `greedy` `sortings` `*2000` | Sep/15/2019 16:06 | 
1331 | [E2 - Rotate Columns (hard version)](https://codeforces.com/contest/1209/problem/E2) | [GNU C++17](./codeforces/1209/E2.cpp) | `bitmasks` `dp` `greedy` `sortings` `*2500` | Sep/15/2019 16:05 | 
1330 | [G1 - Into Blocks (easy version)](https://codeforces.com/contest/1209/problem/G1) | [GNU C++17](./codeforces/1209/G1.cpp) | `data structures` `dsu` `greedy` `implementation` `two pointers` `*2000` | Sep/14/2019 20:45 | 
1329 | [D - Cow and Snacks](https://codeforces.com/contest/1209/problem/D) | [GNU C++17](./codeforces/1209/D.cpp) | `dfs and similar` `dsu` `graphs` `*1700` | Sep/14/2019 19:56 | 
1328 | [C - Paint the Digits](https://codeforces.com/contest/1209/problem/C) | [GNU C++17](./codeforces/1209/C.cpp) | `constructive algorithms` `greedy` `implementation` `*1500` | Sep/14/2019 19:43 | 
1327 | [B - Koala and Lights](https://codeforces.com/contest/1209/problem/B) | [GNU C++17](./codeforces/1209/B.cpp) | `implementation` `math` `number theory` `*1300` | Sep/14/2019 19:25 | 
1326 | [A - Paint the Numbers](https://codeforces.com/contest/1209/problem/A) | [GNU C++17](./codeforces/1209/A.cpp) | `greedy` `implementation` `math` `*800` | Sep/14/2019 19:09 | 
1325 | [B - Power Socket](https://atcoder.jp/contests/abc139/tasks/abc139_b) | [C++14 (GCC 5.4.1)](./atcoder/abc139/B.cpp) | `AtCoder` `*200` | Sep/01/2019 18:26 | 
1324 | [D - ModSum](https://atcoder.jp/contests/abc139/tasks/abc139_d) | [C++14 (GCC 5.4.1)](./atcoder/abc139/D.cpp) | `AtCoder` `*400` | Sep/01/2019 18:14 | 
1323 | [C - Lower](https://atcoder.jp/contests/abc139/tasks/abc139_c) | [C++14 (GCC 5.4.1)](./atcoder/abc139/C.cpp) | `AtCoder` `*300` | Sep/01/2019 18:12 | 
1322 | [A - Tenki](https://atcoder.jp/contests/abc139/tasks/abc139_a) | [C++14 (GCC 5.4.1)](./atcoder/abc139/A.cpp) | `AtCoder` `*100` | Sep/01/2019 18:03 | 
1321 | [D - Ghd](https://codeforces.com/contest/364/problem/D) | [GNU C++17](./codeforces/364/D.cpp) | `brute force` `math` `probabilities` `*2900` | Sep/01/2019 01:26 | 
1320 | [E - Two Small Strings](https://codeforces.com/contest/1213/problem/E) | [GNU C++17](./codeforces/1213/E.cpp) | `brute force` `constructive algorithms` `*1900` | Aug/30/2019 22:33 | 
1319 | [D1 - Equalizing by Division (easy version)](https://codeforces.com/contest/1213/problem/D1) | [GNU C++17](./codeforces/1213/D1.cpp) | `brute force` `implementation` `*1500` | Aug/30/2019 22:17 | 
1318 | [D2 - Equalizing by Division (hard version)](https://codeforces.com/contest/1213/problem/D2) | [GNU C++17](./codeforces/1213/D2.cpp) | `brute force` `math` `sortings` `*1600` | Aug/30/2019 22:16 | 
1317 | [C - Book Reading](https://codeforces.com/contest/1213/problem/C) | [GNU C++17](./codeforces/1213/C.cpp) | `math` `*1200` | Aug/30/2019 22:06 | 
1316 | [G - Path Queries](https://codeforces.com/contest/1213/problem/G) | [GNU C++17](./codeforces/1213/G.cpp) | `divide and conquer` `dsu` `graphs` `sortings` `trees` `*1800` | Aug/30/2019 20:59 | 
1315 | [B - Bad Prices](https://codeforces.com/contest/1213/problem/B) | [GNU C++17](./codeforces/1213/B.cpp) | `data structures` `implementation` `*1100` | Aug/30/2019 20:44 | 
1314 | [A - Chips Moving](https://codeforces.com/contest/1213/problem/A) | [GNU C++17](./codeforces/1213/A.cpp) | `math` `*900` | Aug/30/2019 20:39 | 
1313 | [F - Remainder Problem](https://codeforces.com/contest/1207/problem/F) | [GNU C++17](./codeforces/1207/F.cpp) | `brute force` `data structures` `implementation` `*2100` | Aug/29/2019 19:49 | 
1312 | [G - Shortest Path Problem?](https://codeforces.com/contest/845/problem/G) | [GNU C++17](./codeforces/845/G.cpp) | `dfs and similar` `graphs` `math` `*2300` | Aug/27/2019 13:15 | 
1311 | [G - Bandit Blues](https://codeforces.com/contest/960/problem/G) | [GNU C++17](./codeforces/960/G.cpp) | `combinatorics` `dp` `fft` `math` `*2900` | Aug/27/2019 00:37 | 
1310 | [A - XORinacci](https://codeforces.com/contest/1208/problem/A) | [GNU C++17](./codeforces/1208/A.cpp) | `math` `*900` | Aug/25/2019 20:37 | 
1309 | [C - Gas Pipeline](https://codeforces.com/contest/1207/problem/C) | [GNU C++17](./codeforces/1207/C.cpp) | `dp` `greedy` `*1500` | Aug/23/2019 00:31 | 
1308 | [E - XOR Guessing](https://codeforces.com/contest/1207/problem/E) | [GNU C++17](./codeforces/1207/E.cpp) | `bitmasks` `interactive` `math` `*1900` | Aug/22/2019 22:11 | 
1307 | [D - Number Of Permutations](https://codeforces.com/contest/1207/problem/D) | [GNU C++17](./codeforces/1207/D.cpp) | `combinatorics` `*1800` | Aug/22/2019 21:18 | 
1306 | [B - Square Filling](https://codeforces.com/contest/1207/problem/B) | [GNU C++17](./codeforces/1207/B.cpp) | `constructive algorithms` `greedy` `implementation` `*1200` | Aug/22/2019 20:44 | 
1305 | [A - There Are Two Types Of Burgers](https://codeforces.com/contest/1207/problem/A) | [GNU C++17](./codeforces/1207/A.cpp) | `brute force` `greedy` `implementation` `math` `*800` | Aug/22/2019 20:39 | 
1304 | [D1 - Kirk and a Binary String (easy version)](https://codeforces.com/contest/1204/problem/D1) | [GNU C++17](./codeforces/1204/D1.cpp) | `brute force` `greedy` `strings` `*2000` | Aug/20/2019 22:18 | 
1303 | [C - Anna, Svyatoslav and Maps](https://codeforces.com/contest/1204/problem/C) | [GNU C++17](./codeforces/1204/C.cpp) | `dp` `graphs` `greedy` `shortest paths` `*1700` | Aug/20/2019 21:23 | 
1302 | [B - Mislove Has Lost an Array](https://codeforces.com/contest/1204/problem/B) | [GNU C++17](./codeforces/1204/B.cpp) | `greedy` `math` `*900` | Aug/20/2019 20:48 | 
1301 | [A - BowWow and the Timetable](https://codeforces.com/contest/1204/problem/A) | [GNU C++17](./codeforces/1204/A.cpp) | `math` `*1000` | Aug/20/2019 20:40 | 
1300 | [D - Shortest Cycle](https://codeforces.com/contest/1206/problem/D) | [GNU C++17](./codeforces/1206/D.cpp) | `bitmasks` `graphs` `*1900` | Aug/18/2019 21:10 | 
1299 | [C - Almost Equal](https://codeforces.com/contest/1206/problem/C) | [GNU C++17](./codeforces/1206/C.cpp) | `constructive algorithms` `math` `*1200` | Aug/18/2019 20:19 | 
1298 | [B - Make Product Equal One](https://codeforces.com/contest/1206/problem/B) | [GNU C++17](./codeforces/1206/B.cpp) | `dp` `implementation` `*900` | Aug/18/2019 19:56 | 
1297 | [A - Choose Two Numbers](https://codeforces.com/contest/1206/problem/A) | [GNU C++17](./codeforces/1206/A.cpp) | `math` `sortings` `*800` | Aug/18/2019 19:47 | 
1296 | [D1 - Remove the Substring (easy version)](https://codeforces.com/contest/1203/problem/D1) | [GNU C++17](./codeforces/1203/D1.cpp) | `greedy` `implementation` `*1600` | Aug/13/2019 21:20 | 
1295 | [D2 - Remove the Substring (hard version)](https://codeforces.com/contest/1203/problem/D2) | [GNU C++17](./codeforces/1203/D2.cpp) | `binary search` `greedy` `implementation` `two pointers` `*1700` | Aug/13/2019 21:19 | 
1294 | [E - Boxers](https://codeforces.com/contest/1203/problem/E) | [GNU C++17](./codeforces/1203/E.cpp) | `greedy` `sortings` `*1500` | Aug/13/2019 21:00 | 
1293 | [B - Equal Rectangles](https://codeforces.com/contest/1203/problem/B) | [GNU C++17](./codeforces/1203/B.cpp) | `greedy` `math` `*1200` | Aug/13/2019 20:53 | 
1292 | [C - Common Divisors](https://codeforces.com/contest/1203/problem/C) | [GNU C++17](./codeforces/1203/C.cpp) | `implementation` `math` `*1300` | Aug/13/2019 20:45 | 
1291 | [A - Circle of Students](https://codeforces.com/contest/1203/problem/A) | [GNU C++17](./codeforces/1203/A.cpp) | `implementation` `*1000` | Aug/13/2019 20:41 | 
1290 | [C - Maximum Median](https://codeforces.com/contest/1201/problem/C) | [GNU C++17](./codeforces/1201/C.cpp) | `binary search` `greedy` `math` `sortings` `*1400` | Aug/04/2019 23:19 | 
1289 | [A - Important Exam](https://codeforces.com/contest/1201/problem/A) | [GNU C++17](./codeforces/1201/A.cpp) | `implementation` `strings` `*900` | Aug/04/2019 22:41 | 
1288 | [G - Gold Experience](https://codeforces.com/contest/1148/problem/G) | [GNU C++17](./codeforces/1148/G.cpp) | `constructive algorithms` `graphs` `math` `number theory` `probabilities` `*3300` | Jul/31/2019 02:33 | 
1287 | [C - Matching vs  Independent Set](https://codeforces.com/contest/1198/problem/C) | [GNU C++17](./codeforces/1198/C.cpp) | `constructive algorithms` `graphs` `greedy` `sortings` `*2000` | Jul/31/2019 00:43 | 
1286 | [D - Rectangle Painting 1](https://codeforces.com/contest/1198/problem/D) | [GNU C++17](./codeforces/1198/D.cpp) | `dp` `*2300` | Jul/31/2019 00:30 | 
1285 | [E - Anton and Permutation](https://codeforces.com/contest/785/problem/E) | [GNU C++17](./codeforces/785/E.cpp) | `brute force` `data structures` `*2200` | Jul/27/2019 00:30 | 
1284 | [E - Culture Code](https://codeforces.com/contest/1197/problem/E) | [GNU C++17](./codeforces/1197/E.cpp) | `binary search` `combinatorics` `data structures` `dp` `shortest paths` `sortings` `*2300` | Jul/22/2019 22:42 | 
1283 | [D - Yet Another Subarray Problem](https://codeforces.com/contest/1197/problem/D) | [GNU C++17](./codeforces/1197/D.cpp) | `dp` `greedy` `math` `*1900` | Jul/22/2019 21:27 | 
1282 | [C - Array Splitting](https://codeforces.com/contest/1197/problem/C) | [GNU C++17](./codeforces/1197/C.cpp) | `greedy` `sortings` `*1400` | Jul/22/2019 21:00 | 
1281 | [B - Pillars](https://codeforces.com/contest/1197/problem/B) | [GNU C++17](./codeforces/1197/B.cpp) | `greedy` `implementation` `*1000` | Jul/22/2019 20:51 | 
1280 | [A - DIY Wooden Ladder](https://codeforces.com/contest/1197/problem/A) | [GNU C++17](./codeforces/1197/A.cpp) | `greedy` `math` `sortings` `*900` | Jul/22/2019 20:45 | 
1279 | [E - Archaeology](https://codeforces.com/contest/1178/problem/E) | [GNU C++17](./codeforces/1178/E.cpp) | `brute force` `constructive algorithms` `greedy` `strings` `*1900` | Jul/21/2019 13:16 | 
1278 | [D - Prime Graph](https://codeforces.com/contest/1178/problem/D) | [GNU C++17](./codeforces/1178/D.cpp) | `constructive algorithms` `greedy` `math` `number theory` `*1500` | Jul/20/2019 23:04 | 
1277 | [C - Tiles](https://codeforces.com/contest/1178/problem/C) | [GNU C++17](./codeforces/1178/C.cpp) | `combinatorics` `greedy` `math` `*1300` | Jul/20/2019 22:03 | 
1276 | [B - WOW Factor](https://codeforces.com/contest/1178/problem/B) | [GNU C++17](./codeforces/1178/B.cpp) | `dp` `strings` `*1300` | Jul/20/2019 21:57 | 
1275 | [A - Prime Minister](https://codeforces.com/contest/1178/problem/A) | [GNU C++17](./codeforces/1178/A.cpp) | `greedy` `*800` | Jul/20/2019 21:42 | 
1274 | [E - OpenStreetMap](https://codeforces.com/contest/1195/problem/E) | [GNU C++17](./codeforces/1195/E.cpp) | `data structures` `two pointers` `*2100` | Jul/17/2019 23:49 | 
1273 | [D2 - Submarine in the Rybinsk Sea (hard edition)](https://codeforces.com/contest/1195/problem/D2) | [GNU C++17](./codeforces/1195/D2.cpp) | `combinatorics` `math` `number theory` `*1800` | Jul/17/2019 21:48 | 
1272 | [D1 - Submarine in the Rybinsk Sea (easy edition)](https://codeforces.com/contest/1195/problem/D1) | [GNU C++17](./codeforces/1195/D1.cpp) | `combinatorics` `math` `number theory` `*1500` | Jul/17/2019 21:20 | 
1271 | [C - Basketball Exercise](https://codeforces.com/contest/1195/problem/C) | [GNU C++17](./codeforces/1195/C.cpp) | `dp` `*1400` | Jul/17/2019 20:59 | 
1270 | [B - Sport Mafia](https://codeforces.com/contest/1195/problem/B) | [GNU C++17](./codeforces/1195/B.cpp) | `binary search` `brute force` `math` `*1000` | Jul/17/2019 20:52 | 
1269 | [A - Drinks Choosing](https://codeforces.com/contest/1195/problem/A) | [GNU C++17](./codeforces/1195/A.cpp) | `greedy` `math` `*1000` | Jul/17/2019 20:41 | 
1268 | [F - Small Products](https://atcoder.jp/contests/abc132/tasks/abc132_f) | [C++14 (GCC 5.4.1)](./atcoder/abc132/F.cpp) | `AtCoder` `*600` | Jul/01/2019 00:53 | 
1267 | [F - Topforces Strikes Back](https://codeforces.com/contest/1183/problem/F) | [GNU C++17](./codeforces/1183/F.cpp) | `brute force` `math` `sortings` `*2100` | Jun/26/2019 23:28 | 
1266 | [E - Subsequences (easy version)](https://codeforces.com/contest/1183/problem/E) | [GNU C++17](./codeforces/1183/E.cpp) | `dp` `graphs` `implementation` `shortest paths` `*2000` | Jun/26/2019 22:33 | 
1265 | [H - Subsequences (hard version)](https://codeforces.com/contest/1183/problem/H) | [GNU C++17](./codeforces/1183/H.cpp) | `dp` `strings` `*1900` | Jun/26/2019 22:32 | 
1264 | [G - Candy Box (hard version)](https://codeforces.com/contest/1183/problem/G) | [GNU C++17](./codeforces/1183/G.cpp) | `greedy` `implementation` `sortings` `*2000` | Jun/26/2019 22:01 | 
1263 | [D - Candy Box (easy version)](https://codeforces.com/contest/1183/problem/D) | [GNU C++17](./codeforces/1183/D.cpp) | `greedy` `sortings` `*1400` | Jun/26/2019 21:10 | 
1262 | [C - Computer Game](https://codeforces.com/contest/1183/problem/C) | [GNU C++17](./codeforces/1183/C.cpp) | `binary search` `math` `*1400` | Jun/26/2019 21:05 | 
1261 | [B - Equalize Prices](https://codeforces.com/contest/1183/problem/B) | [GNU C++17](./codeforces/1183/B.cpp) | `math` `*900` | Jun/26/2019 20:48 | 
1260 | [A - Nearest Interesting Number](https://codeforces.com/contest/1183/problem/A) | [GNU C++17](./codeforces/1183/A.cpp) | `implementation` `*800` | Jun/26/2019 20:39 | 
1259 | [D - Megalomania](https://atcoder.jp/contests/abc131/tasks/abc131_d) | [C++14 (GCC 5.4.1)](./atcoder/abc131/D.cpp) | `AtCoder` `*400` | Jun/22/2019 18:19 | 
1258 | [C - Anti-Division](https://atcoder.jp/contests/abc131/tasks/abc131_c) | [C++14 (GCC 5.4.1)](./atcoder/abc131/C.cpp) | `AtCoder` `*300` | Jun/22/2019 18:13 | 
1257 | [B - Bite Eating](https://atcoder.jp/contests/abc131/tasks/abc131_b) | [C++14 (GCC 5.4.1)](./atcoder/abc131/B.cpp) | `AtCoder` `*200` | Jun/22/2019 18:10 | 
1256 | [A - Security](https://atcoder.jp/contests/abc131/tasks/abc131_a) | [C++14 (GCC 5.4.1)](./atcoder/abc131/A.cpp) | `AtCoder` `*100` | Jun/22/2019 18:03 | 
1255 | [F - Two Pizzas](https://codeforces.com/contest/1185/problem/F) | [GNU C++17](./codeforces/1185/F.cpp) | `bitmasks` `brute force` `*2100` | Jun/20/2019 00:10 | 
1254 | [G1 - Playlist for Polycarp (easy version)](https://codeforces.com/contest/1185/problem/G1) | [GNU C++17](./codeforces/1185/G1.cpp) | `bitmasks` `combinatorics` `dp` `*2100` | Jun/19/2019 22:31 | 
1253 | [E - Polycarp and Snakes](https://codeforces.com/contest/1185/problem/E) | [GNU C++17](./codeforces/1185/E.cpp) | `brute force` `implementation` `*2000` | Jun/19/2019 22:18 | 
1252 | [D - Extra Element](https://codeforces.com/contest/1185/problem/D) | [GNU C++17](./codeforces/1185/D.cpp) | `implementation` `math` `*1700` | Jun/19/2019 21:41 | 
1251 | [C2 - Exam in BerSU (hard version)](https://codeforces.com/contest/1185/problem/C2) | [GNU C++17](./codeforces/1185/C2.cpp) | `brute force` `data structures` `greedy` `math` `*1700` | Jun/19/2019 21:13 | 
1250 | [C1 - Exam in BerSU (easy version)](https://codeforces.com/contest/1185/problem/C1) | [GNU C++17](./codeforces/1185/C1.cpp) | `greedy` `sortings` `*1200` | Jun/19/2019 21:13 | 
1249 | [B - Email from Polycarp](https://codeforces.com/contest/1185/problem/B) | [GNU C++17](./codeforces/1185/B.cpp) | `implementation` `strings` `*1200` | Jun/19/2019 20:57 | 
1248 | [A - Ropewalkers](https://codeforces.com/contest/1185/problem/A) | [GNU C++17](./codeforces/1185/A.cpp) | `math` `*800` | Jun/19/2019 20:49 | 
1247 | [D - Enough Array](https://atcoder.jp/contests/abc130/tasks/abc130_d) | [C++14 (GCC 5.4.1)](./atcoder/abc130/D.cpp) | `AtCoder` `*400` | Jun/16/2019 20:34 | 
1246 | [E - Common Subsequence](https://atcoder.jp/contests/abc130/tasks/abc130_e) | [C++14 (GCC 5.4.1)](./atcoder/abc130/E.cpp) | `AtCoder` `*500` | Jun/16/2019 20:03 | 
1245 | [B - Split a Number](https://codeforces.com/contest/1181/problem/B) | [GNU C++17](./codeforces/1181/B.cpp) | `greedy` `implementation` `strings` `*1500` | Jun/16/2019 17:56 | 
1244 | [C - Flag](https://codeforces.com/contest/1181/problem/C) | [GNU C++17](./codeforces/1181/C.cpp) | `brute force` `combinatorics` `dp` `implementation` `*1900` | Jun/16/2019 17:22 | 
1243 | [D - Irrigation](https://codeforces.com/contest/1181/problem/D) | [GNU C++17](./codeforces/1181/D.cpp) | `binary search` `data structures` `implementation` `sortings` `trees` `two pointers` `*2200` | Jun/16/2019 16:43 | 
1242 | [A - Chunga-Changa](https://codeforces.com/contest/1181/problem/A) | [GNU C++17](./codeforces/1181/A.cpp) | `greedy` `math` `*1000` | Jun/16/2019 15:40 | 
1241 | [E - Product Oriented Recurrence](https://codeforces.com/contest/1182/problem/E) | [GNU C++17](./codeforces/1182/E.cpp) | `dp` `math` `matrices` `number theory` `*2300` | Jun/13/2019 21:30 | 
1240 | [C - Beautiful Lyrics](https://codeforces.com/contest/1182/problem/C) | [GNU C++17](./codeforces/1182/C.cpp) | `data structures` `greedy` `strings` `*1700` | Jun/11/2019 20:01 | 
1239 | [B - Plus from Picture](https://codeforces.com/contest/1182/problem/B) | [GNU C++17](./codeforces/1182/B.cpp) | `dfs and similar` `implementation` `strings` `*1300` | Jun/11/2019 19:19 | 
1238 | [A - Filling Shapes](https://codeforces.com/contest/1182/problem/A) | [GNU C++17](./codeforces/1182/A.cpp) | `dp` `math` `*1000` | Jun/11/2019 19:08 | 
1237 | [F - Destroy it!](https://codeforces.com/contest/1176/problem/F) | [GNU C++17](./codeforces/1176/F.cpp) | `dp` `implementation` `sortings` `*2100` | Jun/09/2019 22:08 | 
1236 | [D - Recover it!](https://codeforces.com/contest/1176/problem/D) | [GNU C++17](./codeforces/1176/D.cpp) | `dfs and similar` `graphs` `greedy` `number theory` `sortings` `*1800` | Jun/09/2019 21:30 | 
1235 | [E - Cover it!](https://codeforces.com/contest/1176/problem/E) | [GNU C++17](./codeforces/1176/E.cpp) | `dfs and similar` `dsu` `graphs` `shortest paths` `trees` `*1700` | Jun/09/2019 21:14 | 
1234 | [C - Lose it!](https://codeforces.com/contest/1176/problem/C) | [GNU C++17](./codeforces/1176/C.cpp) | `dp` `greedy` `implementation` `*1300` | Jun/09/2019 21:05 | 
1233 | [B - Merge it!](https://codeforces.com/contest/1176/problem/B) | [GNU C++17](./codeforces/1176/B.cpp) | `math` `*1100` | Jun/09/2019 20:43 | 
1232 | [A - Divide it!](https://codeforces.com/contest/1176/problem/A) | [GNU C++17](./codeforces/1176/A.cpp) | `brute force` `greedy` `implementation` `*800` | Jun/09/2019 20:39 | 
1231 | [B - Nauuo and Chess](https://codeforces.com/contest/1173/problem/B) | [GNU C++17](./codeforces/1173/B.cpp) | `constructive algorithms` `greedy` `*1100` | Jun/07/2019 18:33 | 
1230 | [A - Nauuo and Votes](https://codeforces.com/contest/1173/problem/A) | [GNU C++17](./codeforces/1173/A.cpp) | `greedy` `*800` | Jun/07/2019 18:09 | 
1229 | [B - Catch Overflow!](https://codeforces.com/contest/1175/problem/B) | [GNU C++17](./codeforces/1175/B.cpp) | `data structures` `expression parsing` `implementation` `*1600` | Jun/05/2019 20:55 | 
1228 | [A - From Hero to Zero](https://codeforces.com/contest/1175/problem/A) | [GNU C++17](./codeforces/1175/A.cpp) | `implementation` `math` `*900` | Jun/05/2019 20:38 | 
1227 | [E - Ehab and the Expected GCD Problem](https://codeforces.com/contest/1174/problem/E) | [GNU C++17](./codeforces/1174/E.cpp) | `combinatorics` `dp` `math` `number theory` `*2500` | Jun/04/2019 15:55 | 
1226 | [F - Ehab and the Big Finale](https://codeforces.com/contest/1174/problem/F) | [GNU C++17](./codeforces/1174/F.cpp) | `constructive algorithms` `divide and conquer` `graphs` `implementation` `interactive` `trees` `*2400` | Jun/04/2019 15:11 | 
1225 | [D - Ehab and the Expected XOR Problem](https://codeforces.com/contest/1174/problem/D) | [GNU C++17](./codeforces/1174/D.cpp) | `bitmasks` `constructive algorithms` `*1900` | Jun/03/2019 21:18 | 
1224 | [B - Ehab Is an Odd Person](https://codeforces.com/contest/1174/problem/B) | [GNU C++17](./codeforces/1174/B.cpp) | `sortings` `*1200` | Jun/03/2019 20:42 | 
1223 | [C - Ehab and a Special Coloring Problem](https://codeforces.com/contest/1174/problem/C) | [GNU C++17](./codeforces/1174/C.cpp) | `constructive algorithms` `number theory` `*1300` | Jun/03/2019 20:31 | 
1222 | [A - Ehab Fails to Be Thanos](https://codeforces.com/contest/1174/problem/A) | [GNU C++17](./codeforces/1174/A.cpp) | `constructive algorithms` `greedy` `sortings` `*1000` | Jun/03/2019 20:08 | 
1221 | [B - Digits Sequence (Hard Edition)](https://codeforces.com/contest/1177/problem/B) | [GNU C++17](./codeforces/1177/B.cpp) | `binary search` `divide and conquer` `implementation` `*1800` | Jun/01/2019 14:41 | 
1220 | [C - Increasing by Modulo](https://codeforces.com/contest/1169/problem/C) | [GNU C++17](./codeforces/1169/C.cpp) | `binary search` `greedy` `*1700` | May/26/2019 22:23 | 
1219 | [B - Pairs](https://codeforces.com/contest/1169/problem/B) | [GNU C++17](./codeforces/1169/B.cpp) | `graphs` `implementation` `*1500` | May/26/2019 21:51 | 
1218 | [A - Circle Metro](https://codeforces.com/contest/1169/problem/A) | [GNU C++17](./codeforces/1169/A.cpp) | `implementation` `math` `*900` | May/26/2019 21:40 | 
1217 | [E - The Road to Berland is Paved With Good Intentions](https://codeforces.com/contest/228/problem/E) | [GNU C++17](./codeforces/228/E.cpp) | `2-sat` `dfs and similar` `dsu` `graphs` `*1900` | May/24/2019 23:11 | 
1216 | [E - Freelancer's Dreams](https://codeforces.com/contest/606/problem/E) | [GNU C++17](./codeforces/606/E.cpp) | `*2400` | May/21/2019 17:57 | 
1215 | [A - 2Char](https://codeforces.com/contest/593/problem/A) | [GNU C++17](./codeforces/593/A.cpp) | `brute force` `implementation` `*1200` | May/20/2019 19:51 | 
1214 | [D - Lazy Student](https://codeforces.com/contest/606/problem/D) | [GNU C++17](./codeforces/606/D.cpp) | `graphs` `*1700` | May/19/2019 21:30 | 
1213 | [B - Testing Robots](https://codeforces.com/contest/606/problem/B) | [GNU C++17](./codeforces/606/B.cpp) | `implementation` `*1600` | May/19/2019 20:34 | 
1212 | [C - Sorting Railway Cars](https://codeforces.com/contest/606/problem/C) | [GNU C++17](./codeforces/606/C.cpp) | `*1600` | May/19/2019 20:03 | 
1211 | [A - Magic Spheres](https://codeforces.com/contest/606/problem/A) | [GNU C++17](./codeforces/606/A.cpp) | `implementation` `*1200` | May/19/2019 19:40 | 
1210 | [F - XOR Matching](https://atcoder.jp/contests/abc126/tasks/abc126_f) | [C++14 (GCC 5.4.1)](./atcoder/abc126/F.cpp) | `AtCoder` `*600` | May/19/2019 19:23 | 
1209 | [E - 1 or 2](https://atcoder.jp/contests/abc126/tasks/abc126_e) | [C++14 (GCC 5.4.1)](./atcoder/abc126/E.cpp) | `AtCoder` `*500` | May/19/2019 18:27 | 
1208 | [D - Even Relation](https://atcoder.jp/contests/abc126/tasks/abc126_d) | [C++14 (GCC 5.4.1)](./atcoder/abc126/D.cpp) | `AtCoder` `*400` | May/19/2019 18:20 | 
1207 | [C - Dice and Coin](https://atcoder.jp/contests/abc126/tasks/abc126_c) | [C++14 (GCC 5.4.1)](./atcoder/abc126/C.cpp) | `AtCoder` `*300` | May/19/2019 18:14 | 
1206 | [B - YYMM or MMYY](https://atcoder.jp/contests/abc126/tasks/abc126_b) | [C++14 (GCC 5.4.1)](./atcoder/abc126/B.cpp) | `AtCoder` `*200` | May/19/2019 18:06 | 
1205 | [A - Changing a Character](https://atcoder.jp/contests/abc126/tasks/abc126_a) | [C++14 (GCC 5.4.1)](./atcoder/abc126/A.cpp) | `AtCoder` `*100` | May/19/2019 18:01 | 
1204 | [B - All the Vowels Please](https://codeforces.com/contest/1166/problem/B) | [GNU C++17](./codeforces/1166/B.cpp) | `constructive algorithms` `math` `number theory` `*1100` | May/17/2019 21:27 | 
1203 | [A - Silent Classroom](https://codeforces.com/contest/1166/problem/A) | [GNU C++17](./codeforces/1166/A.cpp) | `combinatorics` `greedy` `*900` | May/17/2019 21:09 | 
1202 | [D - Mysterious Code](https://codeforces.com/contest/1163/problem/D) | [GNU C++17](./codeforces/1163/D.cpp) | `dp` `strings` `*2100` | May/17/2019 18:25 | 
1201 | [E - Magical Permutation](https://codeforces.com/contest/1163/problem/E) | [GNU C++17](./codeforces/1163/E.cpp) | `bitmasks` `brute force` `constructive algorithms` `data structures` `graphs` `math` `*2400` | May/17/2019 16:48 | 
1200 | [D - Permutations](https://codeforces.com/contest/48/problem/D) | [GNU C++17](./codeforces/48/D.cpp) | `greedy` `*1500` | May/17/2019 00:12 | 
1199 | [B - Permutation](https://codeforces.com/contest/137/problem/B) | [GNU C++17](./codeforces/137/B.cpp) | `greedy` `*1000` | May/16/2019 23:58 | 
1198 | [C - Sonya and Problem Wihtout a Legend](https://codeforces.com/contest/713/problem/C) | [GNU C++17](./codeforces/713/C.cpp) | `dp` `sortings` `*2300` | May/16/2019 23:19 | 
1197 | [C - Sequence](https://codeforces.com/contest/13/problem/C) | [GNU C++17](./codeforces/13/C.cpp) | `dp` `sortings` `*2200` | May/16/2019 23:04 | 
1196 | [C - Sonya and Queries](https://codeforces.com/contest/714/problem/C) | [GNU C++17](./codeforces/714/C.cpp) | `data structures` `implementation` `*1400` | May/16/2019 17:53 | 
1195 | [B - Filya and Homework](https://codeforces.com/contest/714/problem/B) | [GNU C++17](./codeforces/714/B.cpp) | `implementation` `sortings` `*1200` | May/16/2019 17:45 | 
1194 | [A - Meeting of Old Friends](https://codeforces.com/contest/714/problem/A) | [GNU C++17](./codeforces/714/A.cpp) | `implementation` `math` `*1100` | May/16/2019 17:41 | 
1193 | [E - Range Deleting](https://codeforces.com/contest/1167/problem/E) | [GNU C++17](./codeforces/1167/E.cpp) | `binary search` `combinatorics` `data structures` `two pointers` `*2100` | May/16/2019 17:35 | 
1192 | [B2 - Cat Party (Hard Edition)](https://codeforces.com/contest/1163/problem/B2) | [GNU C++17](./codeforces/1163/B2.cpp) | `data structures` `implementation` `*1600` | May/10/2019 00:13 | 
1191 | [B1 - Cat Party (Easy Edition)](https://codeforces.com/contest/1163/problem/B1) | [GNU C++17](./codeforces/1163/B1.cpp) | `data structures` `implementation` `*1500` | May/10/2019 00:13 | 
1190 | [A - Eating Soup](https://codeforces.com/contest/1163/problem/A) | [GNU C++17](./codeforces/1163/A.cpp) | `greedy` `math` `*900` | May/10/2019 00:13 | 
1189 | [C1 - Power Transmission (Easy Edition)](https://codeforces.com/contest/1163/problem/C1) | [GNU C++17](./codeforces/1163/C1.cpp) | `brute force` `geometry` `*1900` | May/10/2019 00:13 | 
1188 | [C2 - Power Transmission (Hard Edition)](https://codeforces.com/contest/1163/problem/C2) | [GNU C++17](./codeforces/1163/C2.cpp) | `data structures` `geometry` `implementation` `math` `*1900` | May/10/2019 00:05 | 
1187 | [A - Darker and Darker](https://atcoder.jp/contests/agc033/tasks/agc033_a) | [C++14 (GCC 5.4.1)](./atcoder/agc033/A.cpp) | `AtCoder` `*300` | May/04/2019 18:11 | 
1186 | [E - Special Segments of Permutation](https://codeforces.com/contest/1156/problem/E) | [GNU C++17](./codeforces/1156/E.cpp) | `data structures` `divide and conquer` `dsu` `two pointers` `*2200` | May/02/2019 00:58 | 
1185 | [A - Inscribed Figures](https://codeforces.com/contest/1156/problem/A) | [GNU C++17](./codeforces/1156/A.cpp) | `geometry` `*1400` | May/02/2019 00:50 | 
1184 | [D - 0-1-Tree](https://codeforces.com/contest/1156/problem/D) | [GNU C++17](./codeforces/1156/D.cpp) | `dfs and similar` `divide and conquer` `dp` `dsu` `trees` `*2200` | May/02/2019 00:48 | 
1183 | [C - Match Points](https://codeforces.com/contest/1156/problem/C) | [GNU C++17](./codeforces/1156/C.cpp) | `binary search` `greedy` `sortings` `ternary search` `two pointers` `*2000` | May/02/2019 00:45 | 
1182 | [B - Ugly Pairs](https://codeforces.com/contest/1156/problem/B) | [GNU C++17](./codeforces/1156/B.cpp) | `dfs and similar` `greedy` `implementation` `sortings` `strings` `*1800` | May/01/2019 21:44 | 
1181 | [C - Neko does Maths](https://codeforces.com/contest/1152/problem/C) | [GNU C++17](./codeforces/1152/C.cpp) | `brute force` `math` `number theory` `*1800` | Apr/24/2019 21:24 | 
1180 | [B - Neko Performs Cat Furrier Transform](https://codeforces.com/contest/1152/problem/B) | [GNU C++17](./codeforces/1152/B.cpp) | `bitmasks` `constructive algorithms` `dfs and similar` `math` `*1300` | Apr/24/2019 20:54 | 
1179 | [A - Neko Finds Grapes](https://codeforces.com/contest/1152/problem/A) | [GNU C++17](./codeforces/1152/A.cpp) | `greedy` `implementation` `math` `*800` | Apr/24/2019 20:38 | 
1178 | [E - Guess the Root](https://codeforces.com/contest/1155/problem/E) | [GNU C++17](./codeforces/1155/E.cpp) | `brute force` `interactive` `math` `*2200` | Apr/22/2019 22:12 | 
1177 | [D - Beautiful Array](https://codeforces.com/contest/1155/problem/D) | [GNU C++17](./codeforces/1155/D.cpp) | `brute force` `data structures` `divide and conquer` `dp` `greedy` `*1900` | Apr/22/2019 21:42 | 
1176 | [C - Alarm Clocks Everywhere](https://codeforces.com/contest/1155/problem/C) | [GNU C++17](./codeforces/1155/C.cpp) | `math` `number theory` `*1300` | Apr/22/2019 21:23 | 
1175 | [B - Game with Telephone Numbers](https://codeforces.com/contest/1155/problem/B) | [GNU C++17](./codeforces/1155/B.cpp) | `games` `greedy` `implementation` `*1200` | Apr/22/2019 20:52 | 
1174 | [A - Reverse a Substring](https://codeforces.com/contest/1155/problem/A) | [GNU C++17](./codeforces/1155/A.cpp) | `implementation` `sortings` `strings` `*1000` | Apr/22/2019 20:39 | 
1173 | [E - Number of Components](https://codeforces.com/contest/1151/problem/E) | [GNU C++17](./codeforces/1151/E.cpp) | `combinatorics` `data structures` `dp` `math` `*2100` | Apr/19/2019 00:16 | 
1172 | [C - Problem for Nazar](https://codeforces.com/contest/1151/problem/C) | [GNU C++17](./codeforces/1151/C.cpp) | `constructive algorithms` `math` `*1800` | Apr/18/2019 22:28 | 
1171 | [D - Stas and the Queue at the Buffet](https://codeforces.com/contest/1151/problem/D) | [GNU C++17](./codeforces/1151/D.cpp) | `greedy` `math` `sortings` `*1600` | Apr/18/2019 22:11 | 
1170 | [B - Dima and a Bad XOR](https://codeforces.com/contest/1151/problem/B) | [GNU C++17](./codeforces/1151/B.cpp) | `bitmasks` `brute force` `constructive algorithms` `dp` `*1600` | Apr/18/2019 22:01 | 
1169 | [A - Maxim and Biology](https://codeforces.com/contest/1151/problem/A) | [GNU C++17](./codeforces/1151/A.cpp) | `brute force` `strings` `*1000` | Apr/18/2019 21:48 | 
1168 | [G - Minimum Possible LCM](https://codeforces.com/contest/1154/problem/G) | [GNU C++17](./codeforces/1154/G.cpp) | `brute force` `greedy` `math` `number theory` `*2200` | Apr/17/2019 00:16 | 
1167 | [F - Shovels Shop](https://codeforces.com/contest/1154/problem/F) | [GNU C++17](./codeforces/1154/F.cpp) | `dp` `greedy` `sortings` `*2100` | Apr/16/2019 22:13 | 
1166 | [E - Two Teams](https://codeforces.com/contest/1154/problem/E) | [GNU C++17](./codeforces/1154/E.cpp) | `data structures` `implementation` `sortings` `*1800` | Apr/16/2019 21:45 | 
1165 | [D - Walking Robot](https://codeforces.com/contest/1154/problem/D) | [GNU C++17](./codeforces/1154/D.cpp) | `greedy` `*1500` | Apr/16/2019 21:24 | 
1164 | [C - Gourmet Cat](https://codeforces.com/contest/1154/problem/C) | [GNU C++17](./codeforces/1154/C.cpp) | `implementation` `math` `*1400` | Apr/16/2019 21:06 | 
1163 | [B - Make Them Equal](https://codeforces.com/contest/1154/problem/B) | [GNU C++17](./codeforces/1154/B.cpp) | `math` `*1200` | Apr/16/2019 20:43 | 
1162 | [A - Restoring Three Numbers](https://codeforces.com/contest/1154/problem/A) | [GNU C++17](./codeforces/1154/A.cpp) | `math` `*800` | Apr/16/2019 20:38 | 
1161 | [E - Red and Black Tree](https://codeforces.com/contest/375/problem/E) | [GNU C++17](./codeforces/375/E.cpp) | `dp` `implementation` `math` `*3000` | Apr/16/2019 12:55 | 
1160 | [E - Wet Shark and Blocks](https://codeforces.com/contest/621/problem/E) | [GNU C++17](./codeforces/621/E.cpp) | `dp` `matrices` `*2000` | Apr/09/2019 23:53 | 
1159 | [C - Yet Another Number Sequence](https://codeforces.com/contest/392/problem/C) | [GNU C++17](./codeforces/392/C.cpp) | `combinatorics` `math` `matrices` | Apr/03/2019 03:04 | 
1158 | [D - Pigeon d'Or](https://codeforces.com/contest/1145/problem/D) | [GNU C++17](./codeforces/1145/D.cpp) | `implementation` | Apr/02/2019 01:48 | 
1157 | [A - Thanos Sort](https://codeforces.com/contest/1145/problem/A) | [GNU C++17](./codeforces/1145/A.cpp) | `implementation` | Apr/01/2019 21:19 | 
1156 | [E - Median String](https://codeforces.com/contest/1144/problem/E) | [GNU C++17](./codeforces/1144/E.cpp) | `bitmasks` `math` `number theory` `strings` `*1900` | Mar/31/2019 23:40 | 
1155 | [F - Graph Without Long Directed Paths](https://codeforces.com/contest/1144/problem/F) | [GNU C++17](./codeforces/1144/F.cpp) | `dfs and similar` `graphs` `*1700` | Mar/31/2019 20:48 | 
1154 | [D - Equalize Them All](https://codeforces.com/contest/1144/problem/D) | [GNU C++17](./codeforces/1144/D.cpp) | `constructive algorithms` `greedy` `*1400` | Mar/31/2019 20:39 | 
1153 | [C - Two Shuffled Sequences](https://codeforces.com/contest/1144/problem/C) | [GNU C++17](./codeforces/1144/C.cpp) | `constructive algorithms` `sortings` `*1000` | Mar/31/2019 20:27 | 
1152 | [B - Parity Alternated Deletions](https://codeforces.com/contest/1144/problem/B) | [GNU C++17](./codeforces/1144/B.cpp) | `greedy` `implementation` `sortings` `*900` | Mar/31/2019 20:22 | 
1151 | [A - Diverse Strings](https://codeforces.com/contest/1144/problem/A) | [GNU C++17](./codeforces/1144/A.cpp) | `implementation` `strings` `*800` | Mar/31/2019 20:15 | 
1150 | [D - We Like AGC](https://atcoder.jp/contests/abc122/tasks/abc122_d) | [C++14 (GCC 5.4.1)](./atcoder/abc122/D.cpp) | `AtCoder` `*400` | Mar/24/2019 18:24 | 
1149 | [C - GeT AC](https://atcoder.jp/contests/abc122/tasks/abc122_c) | [C++14 (GCC 5.4.1)](./atcoder/abc122/C.cpp) | `AtCoder` `*300` | Mar/24/2019 18:13 | 
1148 | [B - ATCoder](https://atcoder.jp/contests/abc122/tasks/abc122_b) | [C++14 (GCC 5.4.1)](./atcoder/abc122/B.cpp) | `AtCoder` `*200` | Mar/24/2019 18:07 | 
1147 | [A - Double Helix](https://atcoder.jp/contests/abc122/tasks/abc122_a) | [C++14 (GCC 5.4.1)](./atcoder/abc122/A.cpp) | `AtCoder` `*100` | Mar/24/2019 18:02 | 
1146 | [D - Kingdom and its Cities](https://codeforces.com/contest/613/problem/D) | [GNU C++17](./codeforces/613/D.cpp) | `dfs and similar` `divide and conquer` `dp` `graphs` `sortings` `trees` `*2800` | Mar/23/2019 02:37 | 
1145 | [E - Palindrome-less Arrays](https://codeforces.com/contest/1140/problem/E) | [GNU C++17](./codeforces/1140/E.cpp) | `combinatorics` `divide and conquer` `dp` `*2200` | Mar/22/2019 23:23 | 
1144 | [D - Minimum Triangulation](https://codeforces.com/contest/1140/problem/D) | [GNU C++17](./codeforces/1140/D.cpp) | `dp` `greedy` `math` `*1200` | Mar/22/2019 21:45 | 
1143 | [C - Playlist](https://codeforces.com/contest/1140/problem/C) | [GNU C++17](./codeforces/1140/C.cpp) | `brute force` `data structures` `sortings` `*1600` | Mar/22/2019 21:33 | 
1142 | [B - Good String](https://codeforces.com/contest/1140/problem/B) | [GNU C++17](./codeforces/1140/B.cpp) | `implementation` `strings` `*1200` | Mar/22/2019 21:17 | 
1141 | [A - Detective Book](https://codeforces.com/contest/1140/problem/A) | [GNU C++17](./codeforces/1140/A.cpp) | `implementation` `*1000` | Mar/22/2019 21:10 | 
1140 | [C - Max Mex](https://codeforces.com/contest/1083/problem/C) | [GNU C++17](./codeforces/1083/C.cpp) | `data structures` `trees` `*2900` | Mar/22/2019 03:56 | 
1139 | [E - Maximize Mex](https://codeforces.com/contest/1139/problem/E) | [GNU C++17](./codeforces/1139/E.cpp) | `flows` `graph matchings` `graphs` `*2400` | Mar/22/2019 02:38 | 
1138 | [C - Edgy Trees](https://codeforces.com/contest/1139/problem/C) | [GNU C++17](./codeforces/1139/C.cpp) | `dfs and similar` `dsu` `graphs` `math` `trees` `*1500` | Mar/22/2019 00:51 | 
1137 | [B - Chocolates](https://codeforces.com/contest/1139/problem/B) | [GNU C++17](./codeforces/1139/B.cpp) | `greedy` `implementation` `*1000` | Mar/22/2019 00:30 | 
1136 | [A - Even Substrings](https://codeforces.com/contest/1139/problem/A) | [GNU C++17](./codeforces/1139/A.cpp) | `implementation` `strings` `*800` | Mar/22/2019 00:25 | 
1135 | [E - Superhero Battle](https://codeforces.com/contest/1141/problem/E) | [GNU C++17](./codeforces/1141/E.cpp) | `math` `*1700` | Mar/19/2019 22:09 | 
1134 | [D - Colored Boots](https://codeforces.com/contest/1141/problem/D) | [GNU C++17](./codeforces/1141/D.cpp) | `greedy` `implementation` `*1500` | Mar/19/2019 21:33 | 
1133 | [C - Polycarp Restores Permutation](https://codeforces.com/contest/1141/problem/C) | [GNU C++17](./codeforces/1141/C.cpp) | `math` `*1500` | Mar/19/2019 21:04 | 
1132 | [B - Maximal Continuous Rest](https://codeforces.com/contest/1141/problem/B) | [GNU C++17](./codeforces/1141/B.cpp) | `implementation` `*900` | Mar/19/2019 20:45 | 
1131 | [A - Game 23](https://codeforces.com/contest/1141/problem/A) | [GNU C++17](./codeforces/1141/A.cpp) | `implementation` `math` `*1000` | Mar/19/2019 20:38 | 
1130 | [E - Mr. Kitayuta's Gift](https://codeforces.com/contest/506/problem/E) | [GNU C++17](./codeforces/506/E.cpp) | `combinatorics` `dp` `matrices` `strings` `*3000` | Mar/19/2019 19:05 | 
1129 | [B - Reversi](https://atcoder.jp/contests/agc031/tasks/agc031_b) | [C++14 (GCC 5.4.1)](./atcoder/agc031/B.cpp) | `AtCoder` `*700` | Mar/16/2019 18:48 | 
1128 | [A - Colorful Subsequence](https://atcoder.jp/contests/agc031/tasks/agc031_a) | [C++14 (GCC 5.4.1)](./atcoder/agc031/A.cpp) | `AtCoder` `*200` | Mar/16/2019 18:35 | 
1127 | [F - Clique in the Divisibility Graph](https://codeforces.com/contest/566/problem/F) | [GNU C++17](./codeforces/566/F.cpp) | `dp` `math` `number theory` `*1500` | Mar/14/2019 03:14 | 
1126 | [D - Nastya Is Buying Lunch](https://codeforces.com/contest/1136/problem/D) | [GNU C++17](./codeforces/1136/D.cpp) | `greedy` `*1800` | Mar/12/2019 00:07 | 
1125 | [C - Nastya Is Transposing Matrices](https://codeforces.com/contest/1136/problem/C) | [GNU C++17](./codeforces/1136/C.cpp) | `constructive algorithms` `sortings` `*1500` | Mar/11/2019 23:00 | 
1124 | [B - Nastya Is Playing Computer Games](https://codeforces.com/contest/1136/problem/B) | [GNU C++17](./codeforces/1136/B.cpp) | `constructive algorithms` `math` `*1000` | Mar/11/2019 22:48 | 
1123 | [A - Nastya Is Reading a Book](https://codeforces.com/contest/1136/problem/A) | [GNU C++17](./codeforces/1136/A.cpp) | `implementation` `*800` | Mar/11/2019 22:39 | 
1122 | [D - Longest k-Good Segment](https://codeforces.com/contest/616/problem/D) | [GNU C++17](./codeforces/616/D.cpp) | `binary search` `data structures` `two pointers` `*1600` | Mar/10/2019 16:07 | 
1121 | [E - Relay Race](https://codeforces.com/contest/214/problem/E) | [GNU C++17](./codeforces/214/E.cpp) | `dp` `*2000` | Mar/10/2019 15:57 | 
1120 | [F - Clear the String](https://codeforces.com/contest/1132/problem/F) | [GNU C++17](./codeforces/1132/F.cpp) | `dp` `*2000` | Mar/08/2019 12:39 | 
1119 | [E - Yet Another Ball Problem](https://codeforces.com/contest/1118/problem/E) | [GNU C++17](./codeforces/1118/E.cpp) | `constructive algorithms` `implementation` `*1700` | Feb/19/2019 22:08 | 
1118 | [F1 - Tree Cutting (Easy Version)](https://codeforces.com/contest/1118/problem/F1) | [GNU C++17](./codeforces/1118/F1.cpp) | `dfs and similar` `trees` `*1800` | Feb/19/2019 21:48 | 
1117 | [D2 - Coffee and Coursework (Hard Version)](https://codeforces.com/contest/1118/problem/D2) | [GNU C++17](./codeforces/1118/D2.cpp) | `binary search` `greedy` `*1700` | Feb/19/2019 21:35 | 
1116 | [D1 - Coffee and Coursework (Easy version)](https://codeforces.com/contest/1118/problem/D1) | [GNU C++17](./codeforces/1118/D1.cpp) | `brute force` `greedy` `*1700` | Feb/19/2019 21:35 | 
1115 | [C - Palindromic Matrix](https://codeforces.com/contest/1118/problem/C) | [GNU C++17](./codeforces/1118/C.cpp) | `constructive algorithms` `implementation` `*1700` | Feb/19/2019 21:16 | 
1114 | [B - Tanya and Candies](https://codeforces.com/contest/1118/problem/B) | [GNU C++17](./codeforces/1118/B.cpp) | `implementation` `*1200` | Feb/19/2019 20:53 | 
1113 | [A - Water Buying](https://codeforces.com/contest/1118/problem/A) | [GNU C++17](./codeforces/1118/A.cpp) | `math` `*800` | Feb/19/2019 20:39 | 
1112 | [E - The Child and Binary Tree](https://codeforces.com/contest/438/problem/E) | [GNU C++17](./codeforces/438/E.cpp) | `combinatorics` `divide and conquer` `fft` `number theory` `*3100` | Feb/19/2019 15:00 | 
1111 | [D - Magic Gems](https://codeforces.com/contest/1117/problem/D) | [GNU C++17](./codeforces/1117/D.cpp) | `dp` `math` `matrices` `*2100` | Feb/18/2019 22:25 | 
1110 | [B - Emotes](https://codeforces.com/contest/1117/problem/B) | [GNU C++17](./codeforces/1117/B.cpp) | `greedy` `math` `sortings` `*1000` | Feb/18/2019 21:48 | 
1109 | [A - Best Subsegment](https://codeforces.com/contest/1117/problem/A) | [GNU C++17](./codeforces/1117/A.cpp) | `implementation` `math` `*1100` | Feb/18/2019 21:43 | 
1108 | [D - Sasha and One More Name](https://codeforces.com/contest/1113/problem/D) | [GNU C++17](./codeforces/1113/D.cpp) | `brute force` `constructive algorithms` `strings` `*1800` | Feb/17/2019 03:14 | 
1107 | [A - The Artful Expedient](https://codeforces.com/contest/869/problem/A) | [GNU C++17](./codeforces/869/A.cpp) | `brute force` `implementation` `*1100` | Feb/13/2019 00:29 | 
1106 | [F - Coprime Subsequences](https://codeforces.com/contest/803/problem/F) | [GNU C++17](./codeforces/803/F.cpp) | `bitmasks` `combinatorics` `number theory` `*2000` | Feb/12/2019 04:37 | 
1105 | [E - Dasha and cyclic table](https://codeforces.com/contest/754/problem/E) | [GNU C++17](./codeforces/754/E.cpp) | `bitmasks` `brute force` `fft` `strings` `trees` `*2600` | Feb/12/2019 04:20 | 
1104 | [D - Knights](https://codeforces.com/contest/33/problem/D) | [GNU C++17](./codeforces/33/D.cpp) | `geometry` `graphs` `shortest paths` `sortings` `*2000` | Feb/12/2019 00:20 | 
1103 | [E - Arithmetic Progression](https://codeforces.com/contest/1114/problem/E) | [GNU C++17](./codeforces/1114/E.cpp) | `binary search` `interactive` `number theory` `probabilities` `*2200` | Feb/11/2019 04:23 | 
1102 | [D - Flood Fill](https://codeforces.com/contest/1114/problem/D) | [GNU C++17](./codeforces/1114/D.cpp) | `dp` `*1900` | Feb/11/2019 03:48 | 
1101 | [F - Please, another Queries on Array?](https://codeforces.com/contest/1114/problem/F) | [GNU C++17](./codeforces/1114/F.cpp) | `bitmasks` `data structures` `divide and conquer` `math` `number theory` `*2400` | Feb/11/2019 03:28 | 
1100 | [B - Yet Another Array Partitioning Task](https://codeforces.com/contest/1114/problem/B) | [GNU C++17](./codeforces/1114/B.cpp) | `constructive algorithms` `greedy` `sortings` `*1500` | Feb/11/2019 02:10 | 
1099 | [C - Trailing Loves (or L'oeufs?)](https://codeforces.com/contest/1114/problem/C) | [GNU C++17](./codeforces/1114/C.cpp) | `brute force` `implementation` `math` `number theory` `*1700` | Feb/11/2019 01:14 | 
1098 | [A - Got Any Grapes?](https://codeforces.com/contest/1114/problem/A) | [GNU C++17](./codeforces/1114/A.cpp) | `brute force` `greedy` `implementation` `*800` | Feb/11/2019 01:04 | 
1097 | [F - Vasya and Endless Credits](https://codeforces.com/contest/1107/problem/F) | [GNU C++17](./codeforces/1107/F.cpp) | `dp` `flows` `graph matchings` `graphs` `sortings` `*2600` | Feb/09/2019 06:02 | 
1096 | [E - Magic Stones](https://codeforces.com/contest/1110/problem/E) | [GNU C++17](./codeforces/1110/E.cpp) | `constructive algorithms` `math` `sortings` `*2200` | Feb/07/2019 20:51 | 
1095 | [C - Meaningless Operations](https://codeforces.com/contest/1110/problem/C) | [GNU C++17](./codeforces/1110/C.cpp) | `constructive algorithms` `math` `number theory` `*1500` | Feb/07/2019 20:05 | 
1094 | [B - Tape](https://codeforces.com/contest/1110/problem/B) | [GNU C++17](./codeforces/1110/B.cpp) | `greedy` `sortings` `*1400` | Feb/07/2019 19:46 | 
1093 | [A - Parity](https://codeforces.com/contest/1110/problem/A) | [GNU C++17](./codeforces/1110/A.cpp) | `math` `*900` | Feb/07/2019 19:37 | 
1092 | [D - Delivery Bears](https://codeforces.com/contest/653/problem/D) | [GNU C++17](./codeforces/653/D.cpp) | `binary search` `flows` `graphs` `*2200` | Feb/03/2019 01:53 | 
1091 | [F - Lunar New Year and a Recursive Sequence](https://codeforces.com/contest/1106/problem/F) | [GNU C++17](./codeforces/1106/F.cpp) | `math` `matrices` `number theory` `*2400` | Feb/02/2019 06:59 | 
1090 | [D - Petya and Divisors](https://codeforces.com/contest/112/problem/D) | [GNU C++17](./codeforces/112/D.cpp) | `implementation` `number theory` `*1900` | Feb/02/2019 01:39 | 
1089 | [E - Rusty String](https://codeforces.com/contest/827/problem/E) | [GNU C++17](./codeforces/827/E.cpp) | `fft` `math` `strings` `*2700` | Feb/01/2019 03:01 | 
1088 | [E - Lunar New Year and Red Envelopes](https://codeforces.com/contest/1106/problem/E) | [GNU C++17](./codeforces/1106/E.cpp) | `data structures` `dp` `*2100` | Jan/31/2019 20:30 | 
1087 | [B - Lunar New Year and Food Ordering](https://codeforces.com/contest/1106/problem/B) | [GNU C++17](./codeforces/1106/B.cpp) | `data structures` `implementation` `*1500` | Jan/31/2019 19:23 | 
1086 | [D - Lunar New Year and a Wander](https://codeforces.com/contest/1106/problem/D) | [GNU C++17](./codeforces/1106/D.cpp) | `data structures` `dfs and similar` `graphs` `greedy` `shortest paths` `*1500` | Jan/31/2019 18:49 | 
1085 | [C - Lunar New Year and Number Division](https://codeforces.com/contest/1106/problem/C) | [GNU C++17](./codeforces/1106/C.cpp) | `greedy` `implementation` `math` `sortings` `*900` | Jan/31/2019 18:41 | 
1084 | [A - Lunar New Year and Cross Counting](https://codeforces.com/contest/1106/problem/A) | [GNU C++17](./codeforces/1106/A.cpp) | `implementation` `*800` | Jan/31/2019 18:38 | 
1083 | [D - Lipshitz Sequence](https://codeforces.com/contest/602/problem/D) | [GNU C++17](./codeforces/602/D.cpp) | `math` `*2100` | Jan/31/2019 04:07 | 
1082 | [D - Notepad](https://codeforces.com/contest/17/problem/D) | [GNU C++17](./codeforces/17/D.cpp) | `number theory` `*2400` | Jan/30/2019 06:38 | 
1081 | [B - Cats Transport](https://codeforces.com/contest/311/problem/B) | [GNU C++17](./codeforces/311/B.cpp) | `data structures` `dp` `*2400` | Jan/30/2019 04:48 | 
1080 | [D - Tanya and Password](https://codeforces.com/contest/508/problem/D) | [GNU C++17](./codeforces/508/D.cpp) | `dfs and similar` `graphs` `*2500` | Jan/29/2019 15:29 | 
1079 | [D - Fishes](https://codeforces.com/contest/912/problem/D) | [GNU C++17](./codeforces/912/D.cpp) | `data structures` `graphs` `greedy` `probabilities` `shortest paths` `*2100` | Jan/28/2019 21:51 | 
1078 | [E - Garden](https://codeforces.com/contest/152/problem/E) | [GNU C++17](./codeforces/152/E.cpp) | `bitmasks` `dp` `graphs` `trees` `*2500` | Jan/27/2019 20:37 | 
1077 | [E - Palindromes in a Tree](https://codeforces.com/contest/914/problem/E) | [GNU C++17](./codeforces/914/E.cpp) | `bitmasks` `data structures` `divide and conquer` `trees` `*2400` | Jan/27/2019 03:44 | 
1076 | [E - Vasya and Binary String](https://codeforces.com/contest/1107/problem/E) | [GNU C++17](./codeforces/1107/E.cpp) | `dp` `*2400` | Jan/26/2019 23:52 | 
1075 | [D - Compression](https://codeforces.com/contest/1107/problem/D) | [GNU C++17](./codeforces/1107/D.cpp) | `dp` `implementation` `math` `number theory` `*1800` | Jan/26/2019 22:54 | 
1074 | [C - Brutality](https://codeforces.com/contest/1107/problem/C) | [GNU C++17](./codeforces/1107/C.cpp) | `greedy` `sortings` `two pointers` `*1300` | Jan/26/2019 21:49 | 
1073 | [B - Digital root](https://codeforces.com/contest/1107/problem/B) | [GNU C++17](./codeforces/1107/B.cpp) | `math` `number theory` `*1000` | Jan/26/2019 21:42 | 
1072 | [A - Digits Sequence Dividing](https://codeforces.com/contest/1107/problem/A) | [GNU C++17](./codeforces/1107/A.cpp) | `greedy` `strings` `*900` | Jan/26/2019 21:39 | 
1071 | [E - Envy](https://codeforces.com/contest/892/problem/E) | [GNU C++17](./codeforces/892/E.cpp) | `graphs` `*2300` | Jan/26/2019 19:30 | 
1070 | [D - Legen...](https://codeforces.com/contest/696/problem/D) | [GNU C++17](./codeforces/696/D.cpp) | `data structures` `dp` `matrices` `strings` `*2500` | Jan/25/2019 21:16 | 
1069 | [C - Grid game](https://codeforces.com/contest/1104/problem/C) | [GNU C++14](./codeforces/1104/C.cpp) | `constructive algorithms` `implementation` `*1400` | Jan/22/2019 21:12 | 
1068 | [B - Game with string](https://codeforces.com/contest/1104/problem/B) | [GNU C++14](./codeforces/1104/B.cpp) | `data structures` `implementation` `math` `*1200` | Jan/22/2019 21:00 | 
1067 | [A - Splitting into digits](https://codeforces.com/contest/1104/problem/A) | [GNU C++14](./codeforces/1104/A.cpp) | `constructive algorithms` `implementation` `math` `*800` | Jan/22/2019 20:37 | 
1066 | [F - Bracket Substring](https://codeforces.com/contest/1015/problem/F) | [GNU C++14](./codeforces/1015/F.cpp) | `dp` `strings` `*2300` | Jan/21/2019 04:04 | 
1065 | [D - MUH and Cube Walls](https://codeforces.com/contest/471/problem/D) | [GNU C++14](./codeforces/471/D.cpp) | `string suffix structures` `strings` `*1800` | Jan/21/2019 03:35 | 
1064 | [D - Kilani and the Game](https://codeforces.com/contest/1105/problem/D) | [GNU C++17](./codeforces/1105/D.cpp) | `dfs and similar` `graphs` `implementation` `shortest paths` `*1900` | Jan/20/2019 19:12 | 
1063 | [C - Ayoub and Lost Array](https://codeforces.com/contest/1105/problem/C) | [GNU C++17](./codeforces/1105/C.cpp) | `combinatorics` `dp` `math` `*1500` | Jan/20/2019 18:35 | 
1062 | [B - Zuhair and Strings](https://codeforces.com/contest/1105/problem/B) | [GNU C++17](./codeforces/1105/B.cpp) | `brute force` `implementation` `strings` `*1100` | Jan/20/2019 18:16 | 
1061 | [A - Salem and Sticks ](https://codeforces.com/contest/1105/problem/A) | [GNU C++17](./codeforces/1105/A.cpp) | `brute force` `implementation` `*1100` | Jan/20/2019 18:09 | 
1060 | [C - George and Job](https://codeforces.com/contest/467/problem/C) | [GNU C++17](./codeforces/467/C.cpp) | `dp` `implementation` `*1700` | Jan/18/2019 16:24 | 
1059 | [D - GCD Counting](https://codeforces.com/contest/1101/problem/D) | [GNU C++17](./codeforces/1101/D.cpp) | `data structures` `dfs and similar` `dp` `number theory` `trees` `*2000` | Jan/18/2019 15:59 | 
1058 | [D - Fox And Jumping](https://codeforces.com/contest/510/problem/D) | [GNU C++17](./codeforces/510/D.cpp) | `bitmasks` `brute force` `dp` `math` `*1900` | Jan/18/2019 01:28 | 
1057 | [E - Pillars](https://codeforces.com/contest/474/problem/E) | [GNU C++17](./codeforces/474/E.cpp) | `binary search` `data structures` `dp` `sortings` `trees` `*2000` | Jan/16/2019 03:14 | 
1056 | [C - Subsequences](https://codeforces.com/contest/597/problem/C) | [GNU C++17](./codeforces/597/C.cpp) | `data structures` `dp` `*1900` | Jan/16/2019 02:15 | 
1055 | [D - Yaroslav and Divisors](https://codeforces.com/contest/301/problem/D) | [GNU C++17](./codeforces/301/D.cpp) | `data structures` `*2200` | Jan/16/2019 01:56 | 
1054 | [D - Winter is here](https://codeforces.com/contest/839/problem/D) | [GNU C++17](./codeforces/839/D.cpp) | `combinatorics` `dp` `math` `number theory` `*2200` | Jan/16/2019 00:35 | 
1053 | [D - Jzzhu and Numbers](https://codeforces.com/contest/449/problem/D) | [GNU C++17](./codeforces/449/D.cpp) | `bitmasks` `combinatorics` `dp` `*2400` | Jan/14/2019 23:16 | 
1052 | [E - Vowels](https://codeforces.com/contest/383/problem/E) | [GNU C++17](./codeforces/383/E.cpp) | `combinatorics` `divide and conquer` `dp` `*2700` | Jan/14/2019 21:37 | 
1051 | [E - Compatible Numbers](https://codeforces.com/contest/165/problem/E) | [GNU C++17](./codeforces/165/E.cpp) | `bitmasks` `brute force` `dfs and similar` `dp` `*2200` | Jan/14/2019 20:18 | 
1050 | [F - Ivan and Burgers](https://codeforces.com/contest/1100/problem/F) | [GNU C++17](./codeforces/1100/F.cpp) | `data structures` `divide and conquer` `greedy` `math` `*2500` | Jan/14/2019 00:30 | 
1049 | [C - NN and the Optical Illusion](https://codeforces.com/contest/1100/problem/C) | [GNU C++17](./codeforces/1100/C.cpp) | `binary search` `geometry` `math` `*1200` | Jan/13/2019 20:59 | 
1048 | [B - Build a Contest](https://codeforces.com/contest/1100/problem/B) | [GNU C++17](./codeforces/1100/B.cpp) | `data structures` `implementation` `*1300` | Jan/13/2019 20:49 | 
1047 | [A - Roman and Browser](https://codeforces.com/contest/1100/problem/A) | [GNU C++17](./codeforces/1100/A.cpp) | `implementation` `*1000` | Jan/13/2019 20:42 | 
1046 | [F - Tree with Maximum Cost](https://codeforces.com/contest/1092/problem/F) | [GNU C++17](./codeforces/1092/F.cpp) | `dfs and similar` `dp` `trees` `*1900` | Jan/13/2019 00:27 | 
1045 | [E - Polycarp's New Job](https://codeforces.com/contest/1101/problem/E) | [GNU C++17](./codeforces/1101/E.cpp) | `implementation` `*1500` | Jan/12/2019 00:15 | 
1044 | [V - Subtree](https://atcoder.jp/contests/dp/tasks/dp_v) | [C++14 (GCC 5.4.1)](./atcoder/dp/V.cpp) | `AtCoder` `*100` | Jan/10/2019 17:15 | 
1043 | [E - Monotonic Renumeration](https://codeforces.com/contest/1102/problem/E) | [GNU C++17](./codeforces/1102/E.cpp) | `combinatorics` `sortings` `*1700` | Jan/10/2019 01:18 | 
1042 | [F - Elongated Matrix](https://codeforces.com/contest/1102/problem/F) | [GNU C++17](./codeforces/1102/F.cpp) | `binary search` `bitmasks` `brute force` `dp` `graphs` `*2000` | Jan/09/2019 22:17 | 
1041 | [D - Balanced Ternary String](https://codeforces.com/contest/1102/problem/D) | [GNU C++17](./codeforces/1102/D.cpp) | `greedy` `strings` `*1500` | Jan/09/2019 21:42 | 
1040 | [C - Doors Breaking and Repairing](https://codeforces.com/contest/1102/problem/C) | [GNU C++17](./codeforces/1102/C.cpp) | `games` `*1200` | Jan/09/2019 21:06 | 
1039 | [B - Array K-Coloring](https://codeforces.com/contest/1102/problem/B) | [GNU C++17](./codeforces/1102/B.cpp) | `greedy` `sortings` `*1400` | Jan/09/2019 20:59 | 
1038 | [A - Integer Sequence Dividing](https://codeforces.com/contest/1102/problem/A) | [GNU C++17](./codeforces/1102/A.cpp) | `math` `*800` | Jan/09/2019 20:43 | 
1037 | [T - Permutation](https://atcoder.jp/contests/dp/tasks/dp_t) | [C++14 (GCC 5.4.1)](./atcoder/dp/T.cpp) | `AtCoder` `*100` | Jan/07/2019 00:34 | 
1036 | [Y - Grid 2](https://atcoder.jp/contests/dp/tasks/dp_y) | [C++14 (GCC 5.4.1)](./atcoder/dp/Y.cpp) | `AtCoder` `*100` | Jan/06/2019 23:23 | 
1035 | [N - Slimes](https://atcoder.jp/contests/dp/tasks/dp_n) | [C++14 (GCC 5.4.1)](./atcoder/dp/N.cpp) | `AtCoder` `*100` | Jan/06/2019 22:56 | 
1034 | [E - Knapsack 2](https://atcoder.jp/contests/dp/tasks/dp_e) | [C++14 (GCC 5.4.1)](./atcoder/dp/E.cpp) | `AtCoder` `*100` | Jan/06/2019 22:44 | 
1033 | [K - Stones](https://atcoder.jp/contests/dp/tasks/dp_k) | [C++14 (GCC 5.4.1)](./atcoder/dp/K.cpp) | `AtCoder` `*100` | Jan/06/2019 22:31 | 
1032 | [P - Independent Set](https://atcoder.jp/contests/dp/tasks/dp_p) | [C++14 (GCC 5.4.1)](./atcoder/dp/P.cpp) | `AtCoder` `*100` | Jan/06/2019 22:23 | 
1031 | [M - Candies](https://atcoder.jp/contests/dp/tasks/dp_m) | [C++14 (GCC 5.4.1)](./atcoder/dp/M.cpp) | `AtCoder` `*100` | Jan/06/2019 21:37 | 
1030 | [Z - Frog 3](https://atcoder.jp/contests/dp/tasks/dp_z) | [C++14 (GCC 5.4.1)](./atcoder/dp/Z.cpp) | `AtCoder` `*100` | Jan/06/2019 20:40 | 
1029 | [R - Walk](https://atcoder.jp/contests/dp/tasks/dp_r) | [C++14 (GCC 5.4.1)](./atcoder/dp/R.cpp) | `AtCoder` `*100` | Jan/06/2019 19:57 | 
1028 | [Q - Flowers](https://atcoder.jp/contests/dp/tasks/dp_q) | [C++14 (GCC 5.4.1)](./atcoder/dp/Q.cpp) | `AtCoder` `*100` | Jan/06/2019 19:51 | 
1027 | [F - LCS](https://atcoder.jp/contests/dp/tasks/dp_f) | [C++14 (GCC 5.4.1)](./atcoder/dp/F.cpp) | `AtCoder` `*100` | Jan/06/2019 19:40 | 
1026 | [S - Digit Sum](https://atcoder.jp/contests/dp/tasks/dp_s) | [C++14 (GCC 5.4.1)](./atcoder/dp/S.cpp) | `AtCoder` `*100` | Jan/06/2019 18:49 | 
1025 | [L - Deque](https://atcoder.jp/contests/dp/tasks/dp_l) | [C++14 (GCC 5.4.1)](./atcoder/dp/L.cpp) | `AtCoder` `*100` | Jan/06/2019 18:20 | 
1024 | [I - Coins](https://atcoder.jp/contests/dp/tasks/dp_i) | [C++14 (GCC 5.4.1)](./atcoder/dp/I.cpp) | `AtCoder` `*100` | Jan/06/2019 17:38 | 
1023 | [H - Grid 1](https://atcoder.jp/contests/dp/tasks/dp_h) | [C++14 (GCC 5.4.1)](./atcoder/dp/H.cpp) | `AtCoder` `*100` | Jan/06/2019 17:33 | 
1022 | [G - Longest Path](https://atcoder.jp/contests/dp/tasks/dp_g) | [C++14 (GCC 5.4.1)](./atcoder/dp/G.cpp) | `AtCoder` `*100` | Jan/06/2019 17:28 | 
1021 | [C - Vacation](https://atcoder.jp/contests/dp/tasks/dp_c) | [C++14 (GCC 5.4.1)](./atcoder/dp/C.cpp) | `AtCoder` `*100` | Jan/06/2019 17:19 | 
1020 | [B - Frog 2](https://atcoder.jp/contests/dp/tasks/dp_b) | [C++14 (GCC 5.4.1)](./atcoder/dp/B.cpp) | `AtCoder` `*100` | Jan/06/2019 17:14 | 
1019 | [A - Frog 1](https://atcoder.jp/contests/dp/tasks/dp_a) | [C++14 (GCC 5.4.1)](./atcoder/dp/A.cpp) | `AtCoder` `*100` | Jan/06/2019 17:13 | 
1018 | [D - Knapsack 1](https://atcoder.jp/contests/dp/tasks/dp_d) | [C++14 (GCC 5.4.1)](./atcoder/dp/D.cpp) | `AtCoder` `*100` | Jan/06/2019 17:09 | 
1017 | [E - Pig and Palindromes](https://codeforces.com/contest/570/problem/E) | [GNU C++17](./codeforces/570/E.cpp) | `combinatorics` `dp` `*2300` | Jan/06/2019 13:47 | 
1016 | [A - Sum in the tree](https://codeforces.com/contest/1098/problem/A) | [GNU C++17](./codeforces/1098/A.cpp) | `constructive algorithms` `dfs and similar` `greedy` `trees` `*1600` | Jan/06/2019 13:15 | 
1015 | [C - Postcard](https://codeforces.com/contest/1099/problem/C) | [GNU C++17](./codeforces/1099/C.cpp) | `constructive algorithms` `implementation` `*1200` | Jan/05/2019 23:50 | 
1014 | [B - Squares and Segments](https://codeforces.com/contest/1099/problem/B) | [GNU C++17](./codeforces/1099/B.cpp) | `binary search` `constructive algorithms` `math` `*1100` | Jan/05/2019 23:31 | 
1013 | [A - Snowball](https://codeforces.com/contest/1099/problem/A) | [GNU C++17](./codeforces/1099/A.cpp) | `implementation` `*800` | Jan/05/2019 22:40 | 
1012 | [D - Makoto and a Blackboard](https://codeforces.com/contest/1097/problem/D) | [GNU C++17](./codeforces/1097/D.cpp) | `dp` `math` `number theory` `probabilities` `*2200` | Jan/05/2019 16:02 | 
1011 | [C - Yuhao and a Parenthesis](https://codeforces.com/contest/1097/problem/C) | [GNU C++17](./codeforces/1097/C.cpp) | `greedy` `implementation` `*1400` | Jan/04/2019 21:21 | 
1010 | [B - Petr and a Combination Lock](https://codeforces.com/contest/1097/problem/B) | [GNU C++17](./codeforces/1097/B.cpp) | `bitmasks` `brute force` `dp` `*1200` | Jan/04/2019 20:53 | 
1009 | [A - Gennady and a Card Game](https://codeforces.com/contest/1097/problem/A) | [GNU C++17](./codeforces/1097/A.cpp) | `brute force` `implementation` `*800` | Jan/04/2019 20:48 | 
1008 | [F - Inversion Expectation](https://codeforces.com/contest/1096/problem/F) | [GNU C++17](./codeforces/1096/F.cpp) | `dp` `math` `probabilities` `*2300` | Jan/03/2019 23:03 | 
1007 | [C - Polygon for the Angle](https://codeforces.com/contest/1096/problem/C) | [GNU C++17](./codeforces/1096/C.cpp) | `brute force` `geometry` `*1600` | Jan/03/2019 21:27 | 
1006 | [G - Lucky Tickets](https://codeforces.com/contest/1096/problem/G) | [GNU C++17](./codeforces/1096/G.cpp) | `divide and conquer` `dp` `fft` `*2400` | Jan/03/2019 21:10 | 
1005 | [D - Easy Problem](https://codeforces.com/contest/1096/problem/D) | [GNU C++17](./codeforces/1096/D.cpp) | `dp` `*1800` | Jan/03/2019 20:20 | 
1004 | [B - Substring Removal](https://codeforces.com/contest/1096/problem/B) | [GNU C++17](./codeforces/1096/B.cpp) | `combinatorics` `math` `strings` `*1300` | Jan/03/2019 19:58 | 
1003 | [A - Find Divisible](https://codeforces.com/contest/1096/problem/A) | [GNU C++17](./codeforces/1096/A.cpp) | `greedy` `implementation` `math` `*800` | Jan/03/2019 19:49 | 
1002 | [C - Colorful Bricks](https://codeforces.com/contest/1081/problem/C) | [GNU C++17](./codeforces/1081/C.cpp) | `combinatorics` `dp` `math` `*1500` | Dec/17/2018 01:36 | 
1001 | [E - Missing Numbers](https://codeforces.com/contest/1081/problem/E) | [GNU C++17](./codeforces/1081/E.cpp) | `binary search` `constructive algorithms` `greedy` `math` `number theory` `*1900` | Dec/17/2018 01:36 | 
1000 | [B - Farewell Party](https://codeforces.com/contest/1081/problem/B) | [GNU C++17](./codeforces/1081/B.cpp) | `constructive algorithms` `implementation` `*1500` | Dec/16/2018 21:17 | 
999 | [A - Definite Game](https://codeforces.com/contest/1081/problem/A) | [GNU C++17](./codeforces/1081/A.cpp) | `constructive algorithms` `math` `*800` | Dec/16/2018 20:37 | 
998 | [G - Multidimensional Queries](https://codeforces.com/contest/1093/problem/G) | [GNU C++17](./codeforces/1093/G.cpp) | `bitmasks` `data structures` `*2300` | Dec/16/2018 01:11 | 
997 | [E - Intersection of Permutations](https://codeforces.com/contest/1093/problem/E) | [GNU C++17](./codeforces/1093/E.cpp) | `data structures` `*2400` | Dec/16/2018 00:17 | 
996 | [D - Beautiful Graph](https://codeforces.com/contest/1093/problem/D) | [GNU C++17](./codeforces/1093/D.cpp) | `dfs and similar` `graphs` `*1700` | Dec/15/2018 23:37 | 
995 | [C - Mishka and the Last Exam](https://codeforces.com/contest/1093/problem/C) | [GNU C++17](./codeforces/1093/C.cpp) | `greedy` `*1300` | Dec/15/2018 23:17 | 
994 | [B - Letters Rearranging](https://codeforces.com/contest/1093/problem/B) | [GNU C++17](./codeforces/1093/B.cpp) | `constructive algorithms` `greedy` `sortings` `strings` `*900` | Dec/15/2018 23:09 | 
993 | [A - Dice Rolling](https://codeforces.com/contest/1093/problem/A) | [GNU C++17](./codeforces/1093/A.cpp) | `math` `*800` | Dec/15/2018 23:06 | 
992 | [D - The Fair Nut and the Best Path](https://codeforces.com/contest/1084/problem/D) | [GNU C++17](./codeforces/1084/D.cpp) | `dp` `trees` `*1800` | Dec/11/2018 17:54 | 
991 | [B - Kvass and the Fair Nut](https://codeforces.com/contest/1084/problem/B) | [GNU C++17](./codeforces/1084/B.cpp) | `greedy` `implementation` `*1200` | Dec/11/2018 02:32 | 
990 | [C - The Fair Nut and String](https://codeforces.com/contest/1084/problem/C) | [GNU C++17](./codeforces/1084/C.cpp) | `combinatorics` `dp` `implementation` `*1500` | Dec/10/2018 23:01 | 
989 | [A - The Fair Nut and Elevator](https://codeforces.com/contest/1084/problem/A) | [GNU C++17](./codeforces/1084/A.cpp) | `brute force` `implementation` `*1000` | Dec/10/2018 22:42 | 
988 | [D - Similar Arrays](https://codeforces.com/contest/1090/problem/D) | [GNU C++17](./codeforces/1090/D.cpp) | `constructive algorithms` `*1800` | Dec/09/2018 23:40 | 
987 | [A - Company Merging](https://codeforces.com/contest/1090/problem/A) | [GNU C++17](./codeforces/1090/A.cpp) | `greedy` `*1300` | Dec/09/2018 15:54 | 
986 | [M - The Pleasant Walk](https://codeforces.com/contest/1090/problem/M) | [GNU C++17](./codeforces/1090/M.cpp) | `implementation` `*1000` | Dec/09/2018 15:35 | 
985 | [D - Round Subset](https://codeforces.com/contest/837/problem/D) | [GNU C++17](./codeforces/837/D.cpp) | `dp` `math` `*2100` | Dec/07/2018 16:49 | 
984 | [C - k-Tree](https://codeforces.com/contest/431/problem/C) | [GNU C++17](./codeforces/431/C.cpp) | `dp` `implementation` `trees` `*1600` | Dec/07/2018 15:26 | 
983 | [G - Petya and Graph](https://codeforces.com/contest/1082/problem/G) | [GNU C++17](./codeforces/1082/G.cpp) | `flows` `graphs` `*2400` | Dec/06/2018 19:31 | 
982 | [E - Increasing Frequency](https://codeforces.com/contest/1082/problem/E) | [GNU C++17](./codeforces/1082/E.cpp) | `binary search` `dp` `greedy` `*2000` | Dec/06/2018 18:48 | 
981 | [D - Vitya and Strange Lesson](https://codeforces.com/contest/842/problem/D) | [GNU C++17](./codeforces/842/D.cpp) | `binary search` `data structures` `*2000` | Dec/06/2018 18:02 | 
980 | [C - Ilya And The Tree](https://codeforces.com/contest/842/problem/C) | [GNU C++17](./codeforces/842/C.cpp) | `dfs and similar` `graphs` `math` `number theory` `trees` `*2000` | Dec/06/2018 16:11 | 
979 | [E - Ehab and a component choosing problem](https://codeforces.com/contest/1088/problem/E) | [GNU C++17](./codeforces/1088/E.cpp) | `dp` `greedy` `math` `trees` `*2400` | Dec/05/2018 14:35 | 
978 | [D - Ehab and another another xor problem](https://codeforces.com/contest/1088/problem/D) | [GNU C++17](./codeforces/1088/D.cpp) | `bitmasks` `constructive algorithms` `implementation` `interactive` `*2000` | Dec/05/2018 14:31 | 
977 | [C - Ehab and a 2-operation task](https://codeforces.com/contest/1088/problem/C) | [GNU C++17](./codeforces/1088/C.cpp) | `constructive algorithms` `greedy` `math` `*1400` | Dec/04/2018 21:36 | 
976 | [B - Ehab and subtraction](https://codeforces.com/contest/1088/problem/B) | [GNU C++17](./codeforces/1088/B.cpp) | `implementation` `sortings` `*1000` | Dec/04/2018 20:45 | 
975 | [A - Ehab and another construction problem](https://codeforces.com/contest/1088/problem/A) | [GNU C++17](./codeforces/1088/A.cpp) | `brute force` `constructive algorithms` `*800` | Dec/04/2018 20:38 | 
974 | [C - Multi-Subject Competition](https://codeforces.com/contest/1082/problem/C) | [GNU C++17](./codeforces/1082/C.cpp) | `greedy` `sortings` `*1600` | Nov/28/2018 21:19 | 
973 | [B - Vova and Trophies](https://codeforces.com/contest/1082/problem/B) | [GNU C++17](./codeforces/1082/B.cpp) | `greedy` `*1600` | Nov/28/2018 20:56 | 
972 | [A - Vasya and Book](https://codeforces.com/contest/1082/problem/A) | [GNU C++17](./codeforces/1082/A.cpp) | `implementation` `math` `*1200` | Nov/28/2018 20:42 | 
971 | [D - Destiny](https://codeforces.com/contest/840/problem/D) | [GNU C++17](./codeforces/840/D.cpp) | `data structures` `probabilities` `*2500` | Nov/27/2018 18:55 | 
970 | [F - String Set Queries](https://codeforces.com/contest/710/problem/F) | [GNU C++17](./codeforces/710/F.cpp) | `brute force` `data structures` `hashing` `interactive` `string suffix structures` `strings` `*2400` | Nov/27/2018 16:08 | 
969 | [E - e-Government](https://codeforces.com/contest/163/problem/E) | [GNU C++17](./codeforces/163/E.cpp) | `data structures` `dfs and similar` `dp` `strings` `trees` `*2800` | Nov/27/2018 14:56 | 
968 | [F - Katya and Segments Sets](https://codeforces.com/contest/1080/problem/F) | [GNU C++17](./codeforces/1080/F.cpp) | `data structures` `interactive` `sortings` `*2400` | Nov/26/2018 17:14 | 
967 | [C - Pick Heroes](https://codeforces.com/contest/1056/problem/C) | [GNU C++17](./codeforces/1056/C.cpp) | `greedy` `implementation` `interactive` `sortings` `*1700` | Nov/26/2018 02:01 | 
966 | [E - Check Transcription](https://codeforces.com/contest/1056/problem/E) | [GNU C++17](./codeforces/1056/E.cpp) | `brute force` `data structures` `hashing` `strings` `*2100` | Nov/26/2018 02:01 | 
965 | [B - Divide Candies](https://codeforces.com/contest/1056/problem/B) | [GNU C++17](./codeforces/1056/B.cpp) | `math` `number theory` `*1600` | Nov/25/2018 23:30 | 
964 | [A - Determine Line](https://codeforces.com/contest/1056/problem/A) | [GNU C++17](./codeforces/1056/A.cpp) | `implementation` `*800` | Nov/25/2018 23:11 | 
963 | [D - Decorate Apple Tree](https://codeforces.com/contest/1056/problem/D) | [GNU C++17](./codeforces/1056/D.cpp) | `constructive algorithms` `dfs and similar` `dp` `graphs` `greedy` `sortings` `trees` `*1600` | Nov/25/2018 23:07 | 
962 | [C - Masha and two friends](https://codeforces.com/contest/1080/problem/C) | [GNU C++17](./codeforces/1080/C.cpp) | `implementation` `*1500` | Nov/24/2018 14:31 | 
961 | [B - Margarite and the best present](https://codeforces.com/contest/1080/problem/B) | [GNU C++17](./codeforces/1080/B.cpp) | `math` `*900` | Nov/24/2018 13:43 | 
960 | [A - Petya and Origami](https://codeforces.com/contest/1080/problem/A) | [GNU C++17](./codeforces/1080/A.cpp) | `math` `*800` | Nov/24/2018 13:38 | 
959 | [D - Polycarp's phone book](https://codeforces.com/contest/858/problem/D) | [GNU C++17](./codeforces/858/D.cpp) | `data structures` `implementation` `sortings` `*1600` | Nov/24/2018 04:16 | 
958 | [F - Lost Root](https://codeforces.com/contest/1061/problem/F) | [GNU C++17](./codeforces/1061/F.cpp) | `interactive` `probabilities` `*2400` | Nov/23/2018 21:36 | 
957 | [C - Multiplicity](https://codeforces.com/contest/1061/problem/C) | [GNU C++17](./codeforces/1061/C.cpp) | `data structures` `dp` `implementation` `math` `number theory` `*1700` | Nov/23/2018 20:31 | 
956 | [B - Views Matter](https://codeforces.com/contest/1061/problem/B) | [GNU C++17](./codeforces/1061/B.cpp) | `greedy` `implementation` `sortings` `*1400` | Nov/23/2018 01:32 | 
955 | [A - Coins](https://codeforces.com/contest/1061/problem/A) | [GNU C++17](./codeforces/1061/A.cpp) | `greedy` `implementation` `math` `*800` | Nov/22/2018 21:46 | 
954 | [E - The Unbearable Lightness of Weights](https://codeforces.com/contest/1079/problem/E) | [GNU C++17](./codeforces/1079/E.cpp) | `dp` `math` `*2100` | Nov/19/2018 03:51 | 
953 | [D - Barcelonian Distance](https://codeforces.com/contest/1079/problem/D) | [GNU C++17](./codeforces/1079/D.cpp) | `geometry` `implementation` `*1900` | Nov/19/2018 03:26 | 
952 | [C - Playing Piano](https://codeforces.com/contest/1079/problem/C) | [GNU C++17](./codeforces/1079/C.cpp) | `dp` `*1700` | Nov/19/2018 02:37 | 
951 | [A - Kitchen Utensils](https://codeforces.com/contest/1079/problem/A) | [GNU C++17](./codeforces/1079/A.cpp) | `*900` | Nov/19/2018 02:13 | 
950 | [E - Danil and a Part-time Job](https://codeforces.com/contest/877/problem/E) | [GNU C++17](./codeforces/877/E.cpp) | `bitmasks` `data structures` `trees` `*2000` | Nov/18/2018 04:42 | 
949 | [F - Four Divisors](https://codeforces.com/contest/665/problem/F) | [GNU C++17](./codeforces/665/F.cpp) | `data structures` `dp` `math` `number theory` `sortings` `two pointers` `*2400` | Nov/17/2018 18:30 | 
948 | [F2 - Pictures with Kittens (hard version)](https://codeforces.com/contest/1077/problem/F2) | [GNU C++17](./codeforces/1077/F2.cpp) | `data structures` `dp` `*2100` | Nov/17/2018 15:55 | 
947 | [C - Array and Operations](https://codeforces.com/contest/498/problem/C) | [GNU C++17](./codeforces/498/C.cpp) | `flows` `graph matchings` `number theory` `*2100` | Nov/17/2018 04:30 | 
946 | [E - Thematic Contests](https://codeforces.com/contest/1077/problem/E) | [GNU C++17](./codeforces/1077/E.cpp) | `greedy` `sortings` `*1800` | Nov/17/2018 01:24 | 
945 | [D - Cutting Out](https://codeforces.com/contest/1077/problem/D) | [GNU C++17](./codeforces/1077/D.cpp) | `binary search` `sortings` `*1600` | Nov/17/2018 00:48 | 
944 | [C - Good Array](https://codeforces.com/contest/1077/problem/C) | [GNU C++17](./codeforces/1077/C.cpp) | `*1300` | Nov/16/2018 23:59 | 
943 | [B - Disturbed People](https://codeforces.com/contest/1077/problem/B) | [GNU C++17](./codeforces/1077/B.cpp) | `greedy` `*1000` | Nov/16/2018 23:52 | 
942 | [A - Frog Jumping](https://codeforces.com/contest/1077/problem/A) | [GNU C++17](./codeforces/1077/A.cpp) | `math` `*800` | Nov/16/2018 23:43 | 
941 | [B - Math](https://codeforces.com/contest/1062/problem/B) | [GNU C++17](./codeforces/1062/B.cpp) | `greedy` `math` `number theory` `*1500` | Nov/15/2018 03:20 | 
940 | [E - Company](https://codeforces.com/contest/1062/problem/E) | [GNU C++17](./codeforces/1062/E.cpp) | `binary search` `data structures` `dfs and similar` `greedy` `trees` `*2300` | Nov/15/2018 02:34 | 
939 | [D - Fun with Integers](https://codeforces.com/contest/1062/problem/D) | [GNU C++17](./codeforces/1062/D.cpp) | `dfs and similar` `graphs` `implementation` `math` `*1800` | Nov/15/2018 00:54 | 
938 | [C - Banh-mi](https://codeforces.com/contest/1062/problem/C) | [GNU C++17](./codeforces/1062/C.cpp) | `greedy` `implementation` `math` `*1600` | Nov/14/2018 22:37 | 
937 | [A - A Prank](https://codeforces.com/contest/1062/problem/A) | [GNU C++17](./codeforces/1062/A.cpp) | `greedy` `implementation` `*1300` | Nov/14/2018 21:40 | 
936 | [H - Queries for Number of Palindromes](https://codeforces.com/contest/245/problem/H) | [GNU C++17](./codeforces/245/H.cpp) | `dp` `hashing` `strings` `*1800` | Nov/13/2018 20:36 | 
935 | [D - Edge Deletion](https://codeforces.com/contest/1076/problem/D) | [GNU C++17](./codeforces/1076/D.cpp) | `graphs` `greedy` `shortest paths` `*1800` | Nov/12/2018 22:09 | 
934 | [E - Vasya and a Tree](https://codeforces.com/contest/1076/problem/E) | [GNU C++17](./codeforces/1076/E.cpp) | `data structures` `trees` `*1900` | Nov/12/2018 21:45 | 
933 | [C - Meme Problem](https://codeforces.com/contest/1076/problem/C) | [GNU C++17](./codeforces/1076/C.cpp) | `binary search` `math` `*1300` | Nov/12/2018 20:59 | 
932 | [B - Divisor Subtraction](https://codeforces.com/contest/1076/problem/B) | [GNU C++17](./codeforces/1076/B.cpp) | `implementation` `math` `number theory` `*1200` | Nov/12/2018 20:47 | 
931 | [A - Minimizing the String](https://codeforces.com/contest/1076/problem/A) | [GNU C++17](./codeforces/1076/A.cpp) | `greedy` `strings` `*1200` | Nov/12/2018 20:41 | 
930 | [D - Misha and Permutations Summation](https://codeforces.com/contest/501/problem/D) | [GNU C++17](./codeforces/501/D.cpp) | `data structures` `*2000` | Nov/07/2018 04:26 | 
929 | [D - Power Tower](https://codeforces.com/contest/906/problem/D) | [GNU C++17](./codeforces/906/D.cpp) | `chinese remainder theorem` `math` `number theory` `*2700` | Nov/07/2018 01:58 | 
928 | [E - Ciel and Gondolas](https://codeforces.com/contest/321/problem/E) | [GNU C++17](./codeforces/321/E.cpp) | `data structures` `divide and conquer` `dp` `*2600` | Nov/06/2018 23:16 | 
927 | [B - LCM](https://codeforces.com/contest/1068/problem/B) | [Python 3](./codeforces/1068/B.py) | `math` `number theory` `*1200` | Nov/06/2018 01:00 | 
926 | [F - Deduction Queries](https://codeforces.com/contest/1075/problem/F) | [GNU C++17](./codeforces/1075/F.cpp) | `data structures` `dsu` `*2400` | Nov/05/2018 04:40 | 
925 | [C - The Tower is Going Home](https://codeforces.com/contest/1075/problem/C) | [GNU C++17](./codeforces/1075/C.cpp) | `two pointers` `*1700` | Nov/05/2018 02:30 | 
924 | [B - Taxi drivers and Lyft](https://codeforces.com/contest/1075/problem/B) | [GNU C++17](./codeforces/1075/B.cpp) | `implementation` `sortings` `*1200` | Nov/05/2018 00:28 | 
923 | [A - The King's Race](https://codeforces.com/contest/1075/problem/A) | [GNU C++17](./codeforces/1075/A.cpp) | `implementation` `math` `*800` | Nov/05/2018 00:16 | 
922 | [D - The Door Problem](https://codeforces.com/contest/776/problem/D) | [GNU C++17](./codeforces/776/D.cpp) | `2-sat` `dfs and similar` `dsu` `graphs` `*2000` | Nov/04/2018 23:18 | 
921 | [C - Dijkstra?](https://codeforces.com/contest/20/problem/C) | [GNU C++17](./codeforces/20/C.cpp) | `graphs` `shortest paths` `*1900` | Nov/02/2018 21:09 | 
920 | [E - Pursuit For Artifacts](https://codeforces.com/contest/652/problem/E) | [GNU C++17](./codeforces/652/E.cpp) | `dfs and similar` `dsu` `graphs` `trees` `*2300` | Oct/31/2018 03:38 | 
919 | [E - We Need More Bosses](https://codeforces.com/contest/1000/problem/E) | [GNU C++17](./codeforces/1000/E.cpp) | `dfs and similar` `graphs` `trees` `*2100` | Oct/30/2018 02:11 | 
918 | [C - Rumor](https://codeforces.com/contest/893/problem/C) | [GNU C++17](./codeforces/893/C.cpp) | `dfs and similar` `graphs` `greedy` `*1300` | Oct/29/2018 20:09 | 
917 | [B - Lost Array](https://codeforces.com/contest/1043/problem/B) | [GNU C++17](./codeforces/1043/B.cpp) | `implementation` `*1200` | Oct/29/2018 02:10 | 
916 | [D - Mysterious Crime](https://codeforces.com/contest/1043/problem/D) | [GNU C++17](./codeforces/1043/D.cpp) | `brute force` `combinatorics` `math` `meet-in-the-middle` `two pointers` `*1700` | Oct/28/2018 23:31 | 
915 | [C - Smallest Word](https://codeforces.com/contest/1043/problem/C) | [GNU C++17](./codeforces/1043/C.cpp) | `constructive algorithms` `greedy` `implementation` `*1500` | Oct/28/2018 22:05 | 
914 | [A - Elections](https://codeforces.com/contest/1043/problem/A) | [GNU C++17](./codeforces/1043/A.cpp) | `implementation` `math` `*800` | Oct/28/2018 21:39 | 
913 | [D - Frequency of String](https://codeforces.com/contest/963/problem/D) | [GNU C++17](./codeforces/963/D.cpp) | `hashing` `string suffix structures` `strings` `*2500` | Oct/28/2018 17:04 | 
912 | [F - Isomorphic Strings](https://codeforces.com/contest/985/problem/F) | [GNU C++17](./codeforces/985/F.cpp) | `hashing` `strings` `*2300` | Oct/28/2018 01:05 | 
911 | [B - Lucky Common Subsequence](https://codeforces.com/contest/346/problem/B) | [GNU C++17](./codeforces/346/B.cpp) | `dp` `strings` `*2000` | Oct/26/2018 03:02 | 
910 | [E - Segment Sum](https://codeforces.com/contest/1073/problem/E) | [GNU C++17](./codeforces/1073/E.cpp) | `bitmasks` `combinatorics` `dp` `math` `*2300` | Oct/25/2018 23:47 | 
909 | [D - Berland Fair](https://codeforces.com/contest/1073/problem/D) | [GNU C++17](./codeforces/1073/D.cpp) | `binary search` `brute force` `data structures` `greedy` `*1700` | Oct/25/2018 22:43 | 
908 | [C - Vasya and Robot](https://codeforces.com/contest/1073/problem/C) | [GNU C++17](./codeforces/1073/C.cpp) | `binary search` `two pointers` `*1800` | Oct/25/2018 21:33 | 
907 | [B - Vasya and Books](https://codeforces.com/contest/1073/problem/B) | [GNU C++17](./codeforces/1073/B.cpp) | `implementation` `math` `*1000` | Oct/25/2018 20:44 | 
906 | [A - Diverse Substring](https://codeforces.com/contest/1073/problem/A) | [GNU C++17](./codeforces/1073/A.cpp) | `implementation` `strings` `*1000` | Oct/25/2018 20:37 | 
905 | [B - Minimum path](https://codeforces.com/contest/1071/problem/B) | [GNU C++17](./codeforces/1071/B.cpp) | `dfs and similar` `dp` `greedy` `hashing` `*1900` | Oct/25/2018 17:18 | 
904 | [A - Array Without Local Maximums ](https://codeforces.com/contest/1067/problem/A) | [GNU C++17](./codeforces/1067/A.cpp) | `dp` `*1900` | Oct/25/2018 16:12 | 
903 | [B - Multihedgehog](https://codeforces.com/contest/1067/problem/B) | [GNU C++17](./codeforces/1067/B.cpp) | `dfs and similar` `graphs` `shortest paths` `*1800` | Oct/25/2018 15:40 | 
902 | [C - Colored Rooks](https://codeforces.com/contest/1068/problem/C) | [GNU C++17](./codeforces/1068/C.cpp) | `constructive algorithms` `graphs` `*1700` | Oct/24/2018 23:44 | 
901 | [E - Sign on Fence](https://codeforces.com/contest/484/problem/E) | [GNU C++17](./codeforces/484/E.cpp) | `binary search` `constructive algorithms` `data structures` `*2500` | Oct/15/2018 20:37 | 
900 | [D - The Child and Sequence](https://codeforces.com/contest/438/problem/D) | [GNU C++17](./codeforces/438/D.cpp) | `data structures` `math` `*2300` | Oct/15/2018 16:24 | 
899 | [C - Circular RMQ](https://codeforces.com/contest/52/problem/C) | [GNU C++17](./codeforces/52/C.cpp) | `data structures` `*2200` | Oct/14/2018 23:10 | 
898 | [D - Iahub and Xors](https://codeforces.com/contest/341/problem/D) | [GNU C++17](./codeforces/341/D.cpp) | `data structures` `*2500` | Oct/14/2018 22:33 | 
897 | [E - Dwarves, Hats and Extrasensory Abilities](https://codeforces.com/contest/1064/problem/E) | [GNU C++17](./codeforces/1064/E.cpp) | `binary search` `constructive algorithms` `geometry` `interactive` `*1900` | Oct/14/2018 19:57 | 
896 | [D - Labyrinth](https://codeforces.com/contest/1064/problem/D) | [GNU C++17](./codeforces/1064/D.cpp) | `graphs` `shortest paths` `*1800` | Oct/14/2018 19:52 | 
895 | [C - Oh Those Palindromes](https://codeforces.com/contest/1064/problem/C) | [GNU C++17](./codeforces/1064/C.cpp) | `constructive algorithms` `*1300` | Oct/14/2018 19:40 | 
894 | [B - Equations of Mathematical Magic](https://codeforces.com/contest/1064/problem/B) | [GNU C++17](./codeforces/1064/B.cpp) | `math` `*1200` | Oct/14/2018 19:38 | 
893 | [A - Make a triangle!](https://codeforces.com/contest/1064/problem/A) | [GNU C++17](./codeforces/1064/A.cpp) | `brute force` `geometry` `math` `*800` | Oct/14/2018 19:36 | 
892 | [D - Concatenated Multiples](https://codeforces.com/contest/1029/problem/D) | [GNU C++17](./codeforces/1029/D.cpp) | `implementation` `math` `*1900` | Oct/13/2018 23:46 | 
891 | [C - Make It Equal](https://codeforces.com/contest/1065/problem/C) | [GNU C++17](./codeforces/1065/C.cpp) | `greedy` `*1600` | Oct/13/2018 22:23 | 
890 | [B - Vasya and Isolated Vertices](https://codeforces.com/contest/1065/problem/B) | [GNU C++17](./codeforces/1065/B.cpp) | `constructive algorithms` `graphs` `*1300` | Oct/13/2018 22:21 | 
889 | [A - Vasya and Chocolate](https://codeforces.com/contest/1065/problem/A) | [GNU C++17](./codeforces/1065/A.cpp) | `implementation` `math` `*800` | Oct/13/2018 22:19 | 
888 | [A - Vova and Train](https://codeforces.com/contest/1066/problem/A) | [GNU C++17](./codeforces/1066/A.cpp) | `math` `*1100` | Oct/12/2018 23:16 | 
887 | [B - Heaters](https://codeforces.com/contest/1066/problem/B) | [GNU C++17](./codeforces/1066/B.cpp) | `greedy` `two pointers` `*1500` | Oct/12/2018 23:14 | 
886 | [C - Books Queries](https://codeforces.com/contest/1066/problem/C) | [GNU C++17](./codeforces/1066/C.cpp) | `implementation` `*1400` | Oct/12/2018 23:12 | 
885 | [F - Yet another 2D Walking](https://codeforces.com/contest/1066/problem/F) | [GNU C++17](./codeforces/1066/F.cpp) | `dp` `*2100` | Oct/12/2018 23:09 | 
884 | [D - Boxes Packing](https://codeforces.com/contest/1066/problem/D) | [GNU C++17](./codeforces/1066/D.cpp) | `binary search` `implementation` `*1800` | Oct/12/2018 23:04 | 
883 | [E - Binary Numbers AND Sum](https://codeforces.com/contest/1066/problem/E) | [GNU C++17](./codeforces/1066/E.cpp) | `data structures` `implementation` `math` `*1700` | Oct/12/2018 23:02 | 
882 | [C - Kalila and Dimna in the Logging Industry](https://codeforces.com/contest/319/problem/C) | [GNU C++17](./codeforces/319/C.cpp) | `dp` `geometry` `*2100` | Oct/10/2018 03:18 | 
881 | [F - Escape Through Leaf](https://codeforces.com/contest/932/problem/F) | [GNU C++17](./codeforces/932/F.cpp) | `data structures` `dp` `geometry` `*2700` | Oct/10/2018 03:00 | 
880 | [D - Divisors](https://codeforces.com/contest/1033/problem/D) | [GNU C++17](./codeforces/1033/D.cpp) | `interactive` `math` `number theory` `*2000` | Oct/09/2018 04:31 | 
879 | [C - Permutation Game](https://codeforces.com/contest/1033/problem/C) | [GNU C++17](./codeforces/1033/C.cpp) | `brute force` `dp` `games` `*1600` | Oct/07/2018 23:47 | 
878 | [B - Square Difference](https://codeforces.com/contest/1033/problem/B) | [GNU C++17](./codeforces/1033/B.cpp) | `math` `number theory` `*1100` | Oct/07/2018 23:19 | 
877 | [A - King Escape](https://codeforces.com/contest/1033/problem/A) | [GNU C++17](./codeforces/1033/A.cpp) | `dfs and similar` `graphs` `implementation` `*1000` | Oct/07/2018 23:14 | 
876 | [D - Nature Reserve](https://codeforces.com/contest/1059/problem/D) | [GNU C++17](./codeforces/1059/D.cpp) | `binary search` `geometry` `ternary search` `*2200` | Oct/06/2018 01:41 | 
875 | [B - Forgery](https://codeforces.com/contest/1059/problem/B) | [GNU C++17](./codeforces/1059/B.cpp) | `implementation` `*1300` | Oct/06/2018 00:28 | 
874 | [C - Sequence Transformation](https://codeforces.com/contest/1059/problem/C) | [GNU C++17](./codeforces/1059/C.cpp) | `constructive algorithms` `math` `*1600` | Oct/06/2018 00:20 | 
873 | [A - Cashier](https://codeforces.com/contest/1059/problem/A) | [GNU C++17](./codeforces/1059/A.cpp) | `implementation` `*1000` | Oct/05/2018 23:44 | 
872 | [D - Social Circles](https://codeforces.com/contest/1060/problem/D) | [GNU C++17](./codeforces/1060/D.cpp) | `greedy` `math` `*1900` | Oct/04/2018 19:26 | 
871 | [E - Sergey and Subway](https://codeforces.com/contest/1060/problem/E) | [GNU C++17](./codeforces/1060/E.cpp) | `dfs and similar` `dp` `trees` `*2000` | Oct/04/2018 15:32 | 
870 | [C - Maximum Subrectangle](https://codeforces.com/contest/1060/problem/C) | [GNU C++17](./codeforces/1060/C.cpp) | `binary search` `implementation` `two pointers` `*1600` | Oct/04/2018 13:48 | 
869 | [B - Maximum Sum of Digits](https://codeforces.com/contest/1060/problem/B) | [GNU C++17](./codeforces/1060/B.cpp) | `greedy` `*1100` | Oct/04/2018 13:20 | 
868 | [A - Phone Numbers](https://codeforces.com/contest/1060/problem/A) | [GNU C++17](./codeforces/1060/A.cpp) | `brute force` `*800` | Oct/04/2018 13:08 | 
867 | [D - A Leapfrog in the Array](https://codeforces.com/contest/950/problem/D) | [GNU C++17](./codeforces/950/D.cpp) | `constructive algorithms` `math` `*1700` | Oct/04/2018 02:53 | 
866 | [D - Clues](https://codeforces.com/contest/156/problem/D) | [GNU C++17](./codeforces/156/D.cpp) | `combinatorics` `graphs` `*2500` | Oct/02/2018 02:47 | 
865 | [A - Cows and Sequence](https://codeforces.com/contest/283/problem/A) | [GNU C++17](./codeforces/283/A.cpp) | `constructive algorithms` `data structures` `implementation` `*1600` | Oct/01/2018 16:36 | 
864 | [D - Dexterina’s Lab](https://codeforces.com/contest/717/problem/D) | [GNU C++17](./codeforces/717/D.cpp) | `games` `matrices` `probabilities` `*1900` | Sep/25/2018 00:48 | 
863 | [D - Bag of mice](https://codeforces.com/contest/148/problem/D) | [GNU C++17](./codeforces/148/D.cpp) | `dp` `games` `math` `probabilities` `*1800` | Sep/24/2018 23:57 | 
862 | [D - Bad Luck Island](https://codeforces.com/contest/540/problem/D) | [GNU C++17](./codeforces/540/D.cpp) | `dp` `probabilities` `*1900` | Sep/24/2018 16:01 | 
861 | [E - Fish](https://codeforces.com/contest/16/problem/E) | [GNU C++17](./codeforces/16/E.cpp) | `bitmasks` `dp` `probabilities` `*1900` | Sep/24/2018 15:21 | 
860 | [C - Game on Tree](https://codeforces.com/contest/280/problem/C) | [GNU C++17](./codeforces/280/C.cpp) | `implementation` `math` `probabilities` `trees` `*2200` | Sep/24/2018 03:35 | 
859 | [D - Ilya and Escalator](https://codeforces.com/contest/518/problem/D) | [GNU C++17](./codeforces/518/D.cpp) | `combinatorics` `dp` `math` `probabilities` `*1700` | Sep/24/2018 03:19 | 
858 | [E - Vasya and Good Sequences](https://codeforces.com/contest/1030/problem/E) | [GNU C++17](./codeforces/1030/E.cpp) | `bitmasks` `dp` `*2000` | Sep/24/2018 02:33 | 
857 | [D - Vasya and Triangle](https://codeforces.com/contest/1030/problem/D) | [GNU C++17](./codeforces/1030/D.cpp) | `geometry` `number theory` `*1800` | Sep/24/2018 02:28 | 
856 | [C - Vasya and Golden Ticket](https://codeforces.com/contest/1058/problem/C) | [GNU C++17](./codeforces/1058/C.cpp) | `brute force` `implementation` `*1300` | Sep/23/2018 19:27 | 
855 | [B - Vasya and Cornfield](https://codeforces.com/contest/1058/problem/B) | [GNU C++17](./codeforces/1058/B.cpp) | `geometry` `*1100` | Sep/23/2018 19:21 | 
854 | [A - In Search of an Easy Problem](https://codeforces.com/contest/1058/problem/A) | [GNU C++17](./codeforces/1058/A.cpp) | `implementation` `*800` | Sep/23/2018 19:07 | 
853 | [E - Vasya and Big Integers](https://codeforces.com/contest/1051/problem/E) | [GNU C++17](./codeforces/1051/E.cpp) | `binary search` `data structures` `dp` `hashing` `strings` `*2600` | Sep/23/2018 17:26 | 
852 | [F - The Shortest Statement](https://codeforces.com/contest/1051/problem/F) | [GNU C++17](./codeforces/1051/F.cpp) | `graphs` `shortest paths` `trees` `*2400` | Sep/23/2018 16:17 | 
851 | [D - Bicolorings](https://codeforces.com/contest/1051/problem/D) | [GNU C++17](./codeforces/1051/D.cpp) | `bitmasks` `dp` `*1700` | Sep/23/2018 15:20 | 
850 | [C - Vasya and Multisets](https://codeforces.com/contest/1051/problem/C) | [GNU C++17](./codeforces/1051/C.cpp) | `brute force` `dp` `greedy` `implementation` `math` `*1500` | Sep/23/2018 15:20 | 
849 | [B - Relatively Prime Pairs](https://codeforces.com/contest/1051/problem/B) | [GNU C++17](./codeforces/1051/B.cpp) | `greedy` `math` `number theory` `*1000` | Sep/23/2018 15:20 | 
848 | [A - Vasya And Password](https://codeforces.com/contest/1051/problem/A) | [GNU C++17](./codeforces/1051/A.cpp) | `greedy` `implementation` `strings` `*1200` | Sep/23/2018 15:19 | 
847 | [F - Splitting money](https://codeforces.com/contest/1046/problem/F) | [GNU C++17](./codeforces/1046/F.cpp) | `implementation` `*1400` | Sep/22/2018 17:44 | 
846 | [C - Space Formula](https://codeforces.com/contest/1046/problem/C) | [GNU C++17](./codeforces/1046/C.cpp) | `greedy` `*1400` | Sep/22/2018 17:20 | 
845 | [H - Palindrome Pairs](https://codeforces.com/contest/1046/problem/H) | [GNU C++17](./codeforces/1046/H.cpp) | `bitmasks` `hashing` `*1600` | Sep/22/2018 16:57 | 
844 | [E - Number With The Given Amount Of Divisors](https://codeforces.com/contest/27/problem/E) | [GNU C++17](./codeforces/27/E.cpp) | `brute force` `dp` `number theory` `*2000` | Sep/22/2018 16:35 | 
843 | [D - Anton and School - 2](https://codeforces.com/contest/785/problem/D) | [GNU C++17](./codeforces/785/D.cpp) | `combinatorics` `dp` `math` `number theory` `*2300` | Sep/22/2018 16:12 | 
842 | [C - Array](https://codeforces.com/contest/57/problem/C) | [GNU C++17](./codeforces/57/C.cpp) | `combinatorics` `math` `*1900` | Sep/22/2018 03:51 | 
841 | [C - Enlarge GCD](https://codeforces.com/contest/1047/problem/C) | [GNU C++17](./codeforces/1047/C.cpp) | `number theory` `*1800` | Sep/22/2018 01:02 | 
840 | [B - Cover Points](https://codeforces.com/contest/1047/problem/B) | [GNU C++17](./codeforces/1047/B.cpp) | `geometry` `math` `*900` | Sep/22/2018 00:37 | 
839 | [A - Little C Loves 3 I](https://codeforces.com/contest/1047/problem/A) | [GNU C++17](./codeforces/1047/A.cpp) | `math` `*800` | Sep/22/2018 00:33 | 
838 | [F - Ray in the tube](https://codeforces.com/contest/1041/problem/F) | [GNU C++17](./codeforces/1041/F.cpp) | `data structures` `divide and conquer` `dp` `math` `*2500` | Sep/19/2018 12:07 | 
837 | [A - Writing Code](https://codeforces.com/contest/543/problem/A) | [GNU C++17](./codeforces/543/A.cpp) | `dp` `*1800` | Sep/19/2018 02:44 | 
836 | [C - Array Product](https://codeforces.com/contest/1042/problem/C) | [GNU C++17](./codeforces/1042/C.cpp) | `constructive algorithms` `greedy` `math` `*1700` | Sep/18/2018 02:20 | 
835 | [D - Petya and Array](https://codeforces.com/contest/1042/problem/D) | [GNU C++17](./codeforces/1042/D.cpp) | `data structures` `divide and conquer` `two pointers` `*1800` | Sep/18/2018 01:56 | 
834 | [B - Vitamins](https://codeforces.com/contest/1042/problem/B) | [GNU C++17](./codeforces/1042/B.cpp) | `bitmasks` `brute force` `dp` `implementation` `*1200` | Sep/18/2018 01:47 | 
833 | [A - Benches](https://codeforces.com/contest/1042/problem/A) | [GNU C++17](./codeforces/1042/A.cpp) | `binary search` `implementation` `*1100` | Sep/18/2018 01:22 | 
832 | [C - Coffee Break](https://codeforces.com/contest/1041/problem/C) | [GNU C++17](./codeforces/1041/C.cpp) | `binary search` `data structures` `greedy` `two pointers` `*1600` | Sep/16/2018 21:29 | 
831 | [D - Glider](https://codeforces.com/contest/1041/problem/D) | [GNU C++17](./codeforces/1041/D.cpp) | `binary search` `data structures` `two pointers` `*1700` | Sep/16/2018 21:29 | 
830 | [E - Tree Reconstruction](https://codeforces.com/contest/1041/problem/E) | [GNU C++17](./codeforces/1041/E.cpp) | `constructive algorithms` `data structures` `graphs` `greedy` `*1900` | Sep/16/2018 21:29 | 
829 | [A - Heist](https://codeforces.com/contest/1041/problem/A) | [GNU C++17](./codeforces/1041/A.cpp) | `greedy` `implementation` `sortings` `*800` | Sep/16/2018 21:28 | 
828 | [B - Buying a TV Set](https://codeforces.com/contest/1041/problem/B) | [GNU C++17](./codeforces/1041/B.cpp) | `math` `*1000` | Sep/16/2018 21:28 | 
827 | [E - Devu and Flowers](https://codeforces.com/contest/451/problem/E) | [GNU C++17](./codeforces/451/E.cpp) | `bitmasks` `combinatorics` `number theory` `*2300` | Sep/15/2018 03:34 | 
826 | [D - Beautiful Pairs of Numbers](https://codeforces.com/contest/403/problem/D) | [GNU C++17](./codeforces/403/D.cpp) | `combinatorics` `dp` `*2300` | Sep/15/2018 02:13 | 
825 | [D - String](https://codeforces.com/contest/129/problem/D) | [GNU C++17](./codeforces/129/D.cpp) | `implementation` `string suffix structures` `strings` `*2100` | Sep/14/2018 02:33 | 
824 | [A - Packets](https://codeforces.com/contest/1037/problem/A) | [GNU C++17](./codeforces/1037/A.cpp) | `constructive algorithms` `greedy` `math` `*1300` | Sep/09/2018 00:28 | 
823 | [D - Vasya and Arrays](https://codeforces.com/contest/1036/problem/D) | [GNU C++17](./codeforces/1036/D.cpp) | `greedy` `two pointers` `*1600` | Sep/08/2018 21:27 | 
822 | [E - Covered Points](https://codeforces.com/contest/1036/problem/E) | [GNU C++17](./codeforces/1036/E.cpp) | `fft` `geometry` `number theory` `*2400` | Sep/08/2018 02:18 | 
821 | [C - Classy Numbers](https://codeforces.com/contest/1036/problem/C) | [GNU C++17](./codeforces/1036/C.cpp) | `combinatorics` `dp` `*1900` | Sep/08/2018 01:18 | 
820 | [F - Relatively Prime Powers](https://codeforces.com/contest/1036/problem/F) | [GNU C++17](./codeforces/1036/F.cpp) | `combinatorics` `math` `number theory` `*2400` | Sep/08/2018 01:14 | 
819 | [B - Diagonal Walking v.2](https://codeforces.com/contest/1036/problem/B) | [GNU C++17](./codeforces/1036/B.cpp) | `math` `*1600` | Sep/08/2018 01:06 | 
818 | [A - Function Height](https://codeforces.com/contest/1036/problem/A) | [GNU C++17](./codeforces/1036/A.cpp) | `math` `*1000` | Sep/08/2018 01:02 | 
817 | [E - Maximum Matching](https://codeforces.com/contest/1038/problem/E) | [GNU C++17](./codeforces/1038/E.cpp) | `bitmasks` `brute force` `dfs and similar` `dp` `graphs` `*2400` | Sep/07/2018 12:24 | 
816 | [A - Equality](https://codeforces.com/contest/1038/problem/A) | [GNU C++17](./codeforces/1038/A.cpp) | `implementation` `strings` `*800` | Sep/07/2018 01:53 | 
815 | [B - Non-Coprime Partition](https://codeforces.com/contest/1038/problem/B) | [GNU C++17](./codeforces/1038/B.cpp) | `constructive algorithms` `math` `*1100` | Sep/07/2018 01:53 | 
814 | [C - Gambling](https://codeforces.com/contest/1038/problem/C) | [GNU C++17](./codeforces/1038/C.cpp) | `greedy` `sortings` `*1300` | Sep/07/2018 01:53 | 
813 | [D - Slime](https://codeforces.com/contest/1038/problem/D) | [GNU C++17](./codeforces/1038/D.cpp) | `dp` `greedy` `implementation` `*1800` | Sep/07/2018 01:53 | 
812 | [C - Network Safety](https://codeforces.com/contest/1039/problem/C) | [GNU C++17](./codeforces/1039/C.cpp) | `dfs and similar` `dsu` `graphs` `math` `sortings` `*2200` | Sep/06/2018 12:39 | 
811 | [B - Shashlik Cooking](https://codeforces.com/contest/1040/problem/B) | [GNU C++17](./codeforces/1040/B.cpp) | `dp` `greedy` `math` `*1300` | Sep/06/2018 02:13 | 
810 | [A - Palindrome Dance](https://codeforces.com/contest/1040/problem/A) | [GNU C++17](./codeforces/1040/A.cpp) | `greedy` `*1000` | Sep/06/2018 02:13 | 
809 | [D - Subway Pursuit](https://codeforces.com/contest/1040/problem/D) | [GNU C++17](./codeforces/1040/D.cpp) | `interactive` `*2100` | Sep/06/2018 02:11 | 
808 | [C - Pashmak and Buses](https://codeforces.com/contest/459/problem/C) | [GNU C++17](./codeforces/459/C.cpp) | `combinatorics` `constructive algorithms` `math` `*1900` | Sep/05/2018 00:40 | 
807 | [E - Pashmak and Graph](https://codeforces.com/contest/459/problem/E) | [GNU C++17](./codeforces/459/E.cpp) | `dp` `sortings` `*1900` | Sep/04/2018 23:32 | 
806 | [E - Trips](https://codeforces.com/contest/1037/problem/E) | [GNU C++17](./codeforces/1037/E.cpp) | `graphs` `*2200` | Sep/03/2018 02:15 | 
805 | [D - Valid BFS?](https://codeforces.com/contest/1037/problem/D) | [GNU C++17](./codeforces/1037/D.cpp) | `dfs and similar` `graphs` `shortest paths` `trees` `*1700` | Sep/03/2018 00:46 | 
804 | [C - Equalize](https://codeforces.com/contest/1037/problem/C) | [GNU C++17](./codeforces/1037/C.cpp) | `dp` `greedy` `strings` `*1300` | Sep/03/2018 00:36 | 
803 | [B - Reach Median](https://codeforces.com/contest/1037/problem/B) | [GNU C++17](./codeforces/1037/B.cpp) | `greedy` `*1300` | Sep/03/2018 00:27 | 
802 | [B - Before Exam](https://codeforces.com/contest/119/problem/B) | [GNU C++17](./codeforces/119/B.cpp) | `constructive algorithms` `implementation` `sortings` `*1900` | Sep/02/2018 23:39 | 
801 | [D - Connected Components](https://codeforces.com/contest/292/problem/D) | [GNU C++17](./codeforces/292/D.cpp) | `data structures` `dfs and similar` `dp` `dsu` `*1900` | Sep/02/2018 23:35 | 
800 | [E - Down or Right](https://codeforces.com/contest/1023/problem/E) | [GNU C++17](./codeforces/1023/E.cpp) | `constructive algorithms` `interactive` `matrices` `*2100` | Sep/02/2018 01:01 | 
799 | [D - Array Restoration](https://codeforces.com/contest/1023/problem/D) | [GNU C++17](./codeforces/1023/D.cpp) | `constructive algorithms` `data structures` `*1700` | Sep/02/2018 00:21 | 
798 | [A - Single Wildcard Pattern Matching](https://codeforces.com/contest/1023/problem/A) | [GNU C++17](./codeforces/1023/A.cpp) | `brute force` `implementation` `strings` `*1200` | Sep/01/2018 23:53 | 
797 | [B - Pair of Toys](https://codeforces.com/contest/1023/problem/B) | [GNU C++17](./codeforces/1023/B.cpp) | `math` `*1000` | Sep/01/2018 23:45 | 
796 | [C - Bracket Subsequence](https://codeforces.com/contest/1023/problem/C) | [GNU C++17](./codeforces/1023/C.cpp) | `greedy` `*1200` | Sep/01/2018 23:32 | 
795 | [E - Restore Array](https://codeforces.com/contest/1028/problem/E) | [GNU C++17](./codeforces/1028/E.cpp) | `constructive algorithms` `*2400` | Aug/31/2018 23:09 | 
794 | [C - The Values You Can Make](https://codeforces.com/contest/687/problem/C) | [GNU C++17](./codeforces/687/C.cpp) | `dp` `*1900` | Aug/31/2018 03:04 | 
793 | [E - Product Sum](https://codeforces.com/contest/631/problem/E) | [GNU C++17](./codeforces/631/E.cpp) | `data structures` `dp` `geometry` `*2600` | Aug/31/2018 02:05 | 
792 | [A - Find Square](https://codeforces.com/contest/1028/problem/A) | [GNU C++17](./codeforces/1028/A.cpp) | `implementation` `*800` | Aug/28/2018 02:19 | 
791 | [B - Unnatural Conditions](https://codeforces.com/contest/1028/problem/B) | [GNU C++17](./codeforces/1028/B.cpp) | `constructive algorithms` `math` `*1200` | Aug/28/2018 02:19 | 
790 | [C - Rectangles](https://codeforces.com/contest/1028/problem/C) | [GNU C++17](./codeforces/1028/C.cpp) | `geometry` `implementation` `sortings` `*1600` | Aug/28/2018 02:19 | 
789 | [D - Mouse Hunt](https://codeforces.com/contest/1027/problem/D) | [GNU C++17](./codeforces/1027/D.cpp) | `dfs and similar` `graphs` `*1700` | Aug/26/2018 12:34 | 
788 | [E - Tree with Small Distances](https://codeforces.com/contest/1029/problem/E) | [GNU C++17](./codeforces/1029/E.cpp) | `dp` `graphs` `greedy` `*2100` | Aug/26/2018 12:19 | 
787 | [F - Multicolored Markers](https://codeforces.com/contest/1029/problem/F) | [GNU C++17](./codeforces/1029/F.cpp) | `binary search` `brute force` `math` `number theory` `*2000` | Aug/24/2018 22:36 | 
786 | [C - Maximal Intersection](https://codeforces.com/contest/1029/problem/C) | [GNU C++17](./codeforces/1029/C.cpp) | `greedy` `math` `sortings` `*1600` | Aug/24/2018 21:24 | 
785 | [B - Creating the Contest](https://codeforces.com/contest/1029/problem/B) | [GNU C++17](./codeforces/1029/B.cpp) | `dp` `greedy` `math` `*1200` | Aug/24/2018 21:14 | 
784 | [A - Many Equal Substrings](https://codeforces.com/contest/1029/problem/A) | [GNU C++17](./codeforces/1029/A.cpp) | `implementation` `strings` `*1300` | Aug/24/2018 20:58 | 
783 | [C - Minimum Value Rectangle](https://codeforces.com/contest/1027/problem/C) | [GNU C++17](./codeforces/1027/C.cpp) | `greedy` `*1600` | Aug/24/2018 20:20 | 
782 | [B - Numbers on the Chessboard](https://codeforces.com/contest/1027/problem/B) | [GNU C++17](./codeforces/1027/B.cpp) | `implementation` `math` `*1200` | Aug/24/2018 19:49 | 
781 | [A - Palindromic Twist](https://codeforces.com/contest/1027/problem/A) | [GNU C++17](./codeforces/1027/A.cpp) | `implementation` `strings` `*1000` | Aug/24/2018 19:38 | 
780 | [D - Recovering BST](https://codeforces.com/contest/1025/problem/D) | [GNU C++17](./codeforces/1025/D.cpp) | `brute force` `dp` `math` `number theory` `trees` `*2100` | Aug/21/2018 11:22 | 
779 | [C - Plasticine zebra](https://codeforces.com/contest/1025/problem/C) | [GNU C++17](./codeforces/1025/C.cpp) | `constructive algorithms` `implementation` `*1600` | Aug/21/2018 11:09 | 
778 | [A - Doggo Recoloring](https://codeforces.com/contest/1025/problem/A) | [GNU C++17](./codeforces/1025/A.cpp) | `implementation` `sortings` `*900` | Aug/21/2018 10:58 | 
777 | [B - Weakened Common Divisor](https://codeforces.com/contest/1025/problem/B) | [GNU C++17](./codeforces/1025/B.cpp) | `brute force` `greedy` `number theory` `*1600` | Aug/21/2018 10:56 | 
776 | [C - Line](https://codeforces.com/contest/7/problem/C) | [GNU C++17](./codeforces/7/C.cpp) | `math` `number theory` `*1800` | Aug/13/2018 23:05 | 
775 | [D - Police Stations](https://codeforces.com/contest/796/problem/D) | [GNU C++17](./codeforces/796/D.cpp) | `constructive algorithms` `dfs and similar` `dp` `graphs` `shortest paths` `trees` `*2100` | Aug/13/2018 02:25 | 
774 | [C - Cycle In Maze](https://codeforces.com/contest/769/problem/C) | [GNU C++17](./codeforces/769/C.cpp) | `*special problem` `dfs and similar` `graphs` `greedy` `shortest paths` `*1700` | Aug/13/2018 01:49 | 
773 | [E - Bear and Forgotten Tree 2](https://codeforces.com/contest/653/problem/E) | [GNU C++17](./codeforces/653/E.cpp) | `dfs and similar` `dsu` `graphs` `trees` `*2400` | Aug/13/2018 01:10 | 
772 | [C - Fox And Names](https://codeforces.com/contest/510/problem/C) | [GNU C++17](./codeforces/510/C.cpp) | `dfs and similar` `graphs` `sortings` `*1600` | Aug/13/2018 00:31 | 
771 | [C - On Changing Tree](https://codeforces.com/contest/396/problem/C) | [GNU C++17](./codeforces/396/C.cpp) | `data structures` `graphs` `trees` | Aug/12/2018 17:38 | 
770 | [A - The Rank](https://codeforces.com/contest/1017/problem/A) | [GNU C++17](./codeforces/1017/A.cpp) | `implementation` `*800` | Aug/09/2018 00:05 | 
769 | [C - The Phone Number](https://codeforces.com/contest/1017/problem/C) | [GNU C++17](./codeforces/1017/C.cpp) | `constructive algorithms` `greedy` `*1600` | Aug/09/2018 00:03 | 
768 | [B - The Bits](https://codeforces.com/contest/1017/problem/B) | [GNU C++17](./codeforces/1017/B.cpp) | `implementation` `math` `*1200` | Aug/08/2018 23:55 | 
767 | [D - The Wu](https://codeforces.com/contest/1017/problem/D) | [GNU C++17](./codeforces/1017/D.cpp) | `bitmasks` `brute force` `data structures` `*1900` | Aug/08/2018 23:48 | 
766 | [E - Nastya and King-Shamans](https://codeforces.com/contest/992/problem/E) | [GNU C++17](./codeforces/992/E.cpp) | `binary search` `data structures` `*2500` | Aug/06/2018 02:06 | 
765 | [D - Nastya and a Game](https://codeforces.com/contest/992/problem/D) | [GNU C++17](./codeforces/992/D.cpp) | `brute force` `implementation` `math` `*2100` | Aug/06/2018 01:05 | 
764 | [C - Nastya and a Wardrobe](https://codeforces.com/contest/992/problem/C) | [GNU C++17](./codeforces/992/C.cpp) | `math` `*1600` | Aug/06/2018 00:24 | 
763 | [B - Nastya Studies Informatics](https://codeforces.com/contest/992/problem/B) | [GNU C++17](./codeforces/992/B.cpp) | `math` `number theory` `*1600` | Aug/06/2018 00:07 | 
762 | [A - Nastya and an Array](https://codeforces.com/contest/992/problem/A) | [GNU C++17](./codeforces/992/A.cpp) | `implementation` `sortings` `*800` | Aug/05/2018 23:38 | 
761 | [E - Rest In The Shades](https://codeforces.com/contest/1016/problem/E) | [GNU C++17](./codeforces/1016/E.cpp) | `binary search` `geometry` `*2400` | Aug/04/2018 00:38 | 
760 | [D - Vasya And The Matrix](https://codeforces.com/contest/1016/problem/D) | [GNU C++17](./codeforces/1016/D.cpp) | `constructive algorithms` `flows` `math` `*1800` | Aug/03/2018 23:32 | 
759 | [C - Vasya And The Mushrooms](https://codeforces.com/contest/1016/problem/C) | [GNU C++17](./codeforces/1016/C.cpp) | `dp` `implementation` `*1800` | Aug/03/2018 23:28 | 
758 | [B - Segment Occurrences](https://codeforces.com/contest/1016/problem/B) | [GNU C++17](./codeforces/1016/B.cpp) | `brute force` `implementation` `*1300` | Aug/03/2018 23:23 | 
757 | [A - Death Note](https://codeforces.com/contest/1016/problem/A) | [GNU C++17](./codeforces/1016/A.cpp) | `greedy` `implementation` `math` `*900` | Aug/03/2018 23:20 | 
756 | [A - Points in Segments](https://codeforces.com/contest/1015/problem/A) | [GNU C++17](./codeforces/1015/A.cpp) | `implementation` `*800` | Jul/31/2018 23:38 | 
755 | [B - Obtaining the String](https://codeforces.com/contest/1015/problem/B) | [GNU C++17](./codeforces/1015/B.cpp) | `implementation` `*1200` | Jul/31/2018 23:35 | 
754 | [C - Songs Compression](https://codeforces.com/contest/1015/problem/C) | [GNU C++17](./codeforces/1015/C.cpp) | `sortings` `*1100` | Jul/31/2018 23:34 | 
753 | [D - Walking Between Houses](https://codeforces.com/contest/1015/problem/D) | [GNU C++17](./codeforces/1015/D.cpp) | `constructive algorithms` `greedy` `*1600` | Jul/31/2018 23:29 | 
752 | [E2 - Stars Drawing (Hard Edition)](https://codeforces.com/contest/1015/problem/E2) | [GNU C++17](./codeforces/1015/E2.cpp) | `binary search` `dp` `greedy` `*1900` | Jul/31/2018 23:25 | 
751 | [E1 - Stars Drawing (Easy Edition)](https://codeforces.com/contest/1015/problem/E1) | [GNU C++17](./codeforces/1015/E1.cpp) | `brute force` `dp` `greedy` `*1700` | Jul/31/2018 23:25 | 
750 | [D - Red-Green Towers](https://codeforces.com/contest/478/problem/D) | [GNU C++17](./codeforces/478/D.cpp) | `dp` `*2000` | Jul/31/2018 18:50 | 
749 | [D - Bishwock](https://codeforces.com/contest/991/problem/D) | [GNU C++17](./codeforces/991/D.cpp) | `dp` `greedy` `*1500` | Jul/31/2018 17:38 | 
748 | [C - Candies](https://codeforces.com/contest/991/problem/C) | [GNU C++17](./codeforces/991/C.cpp) | `binary search` `implementation` `*1500` | Jul/31/2018 17:04 | 
747 | [B - Getting an A](https://codeforces.com/contest/991/problem/B) | [GNU C++17](./codeforces/991/B.cpp) | `greedy` `sortings` `*900` | Jul/31/2018 16:47 | 
746 | [A - If at first you don't succeed...](https://codeforces.com/contest/991/problem/A) | [GNU C++17](./codeforces/991/A.cpp) | `implementation` `*1000` | Jul/31/2018 16:39 | 
745 | [B - Maximum Xor Secondary](https://codeforces.com/contest/280/problem/B) | [GNU C++17](./codeforces/280/B.cpp) | `data structures` `implementation` `two pointers` `*1800` | Jul/31/2018 03:20 | 
744 | [C - STL](https://codeforces.com/contest/190/problem/C) | [GNU C++17](./codeforces/190/C.cpp) | `dfs and similar` `*1500` | Jul/30/2018 22:58 | 
743 | [A - Photo of The Sky](https://codeforces.com/contest/1012/problem/A) | [GNU C++17](./codeforces/1012/A.cpp) | `brute force` `implementation` `math` `sortings` `*1500` | Jul/30/2018 22:15 | 
742 | [C - Hills](https://codeforces.com/contest/1012/problem/C) | [GNU C++17](./codeforces/1012/C.cpp) | `dp` `*1900` | Jul/30/2018 22:15 | 
741 | [A - Piles With Stones](https://codeforces.com/contest/1013/problem/A) | [GNU C++17](./codeforces/1013/A.cpp) | `math` `*800` | Jul/30/2018 22:14 | 
740 | [B - And](https://codeforces.com/contest/1013/problem/B) | [GNU C++17](./codeforces/1013/B.cpp) | `greedy` `*1200` | Jul/30/2018 22:14 | 
739 | [B - Volatile Kite](https://codeforces.com/contest/800/problem/B) | [GNU C++17](./codeforces/800/B.cpp) | `geometry` `*1800` | Jul/28/2018 19:10 | 
738 | [F - Dominant Indices](https://codeforces.com/contest/1009/problem/F) | [GNU C++17](./codeforces/1009/F.cpp) | `data structures` `dsu` `trees` `*2300` | Jul/28/2018 03:16 | 
737 | [D - Mars rover](https://codeforces.com/contest/1010/problem/D) | [GNU C++17](./codeforces/1010/D.cpp) | `dfs and similar` `graphs` `implementation` `trees` `*2000` | Jul/28/2018 02:39 | 
736 | [C - Two Squares](https://codeforces.com/contest/994/problem/C) | [GNU C++17](./codeforces/994/C.cpp) | `brute force` `*1600` | Jul/28/2018 01:51 | 
735 | [B - Knights of a Polygonal Table](https://codeforces.com/contest/994/problem/B) | [GNU C++17](./codeforces/994/B.cpp) | `greedy` `implementation` `sortings` `*1400` | Jul/28/2018 01:31 | 
734 | [A - Fingerprints](https://codeforces.com/contest/994/problem/A) | [GNU C++17](./codeforces/994/A.cpp) | `implementation` `*800` | Jul/28/2018 01:16 | 
733 | [D - Rocket](https://codeforces.com/contest/1011/problem/D) | [GNU C++17](./codeforces/1011/D.cpp) | `binary search` `interactive` `*1800` | Jul/26/2018 22:49 | 
732 | [E - Border](https://codeforces.com/contest/1011/problem/E) | [GNU C++17](./codeforces/1011/E.cpp) | `number theory` `*1800` | Jul/26/2018 22:09 | 
731 | [C - Fly](https://codeforces.com/contest/1011/problem/C) | [GNU C++17](./codeforces/1011/C.cpp) | `binary search` `greedy` `math` `*1500` | Jul/26/2018 21:39 | 
730 | [B - Planning The Expedition](https://codeforces.com/contest/1011/problem/B) | [GNU C++17](./codeforces/1011/B.cpp) | `binary search` `brute force` `implementation` `*1200` | Jul/26/2018 21:22 | 
729 | [A - Stages](https://codeforces.com/contest/1011/problem/A) | [GNU C++17](./codeforces/1011/A.cpp) | `greedy` `implementation` `sortings` `*900` | Jul/26/2018 21:11 | 
728 | [C - Socks](https://codeforces.com/contest/731/problem/C) | [GNU C++17](./codeforces/731/C.cpp) | `dfs and similar` `dsu` `graphs` `greedy` `*1600` | Jul/25/2018 02:12 | 
727 | [E - Intercity Travelling](https://codeforces.com/contest/1009/problem/E) | [GNU C++17](./codeforces/1009/E.cpp) | `combinatorics` `math` `probabilities` `*2000` | Jul/21/2018 14:59 | 
726 | [A - A Blend of Springtime](https://codeforces.com/contest/989/problem/A) | [Python 3](./codeforces/989/A.py) | `implementation` `strings` `*900` | Jul/19/2018 14:33 | 
725 | [B - Minimum Ternary String](https://codeforces.com/contest/1009/problem/B) | [Python 3](./codeforces/1009/B.py) | `greedy` `implementation` `*1400` | Jul/19/2018 13:57 | 
724 | [C - Annoying Present](https://codeforces.com/contest/1009/problem/C) | [Python 3](./codeforces/1009/C.py) | `greedy` `math` `*1700` | Jul/19/2018 13:43 | 
723 | [D - Magic Numbers](https://codeforces.com/contest/628/problem/D) | [GNU C++17](./codeforces/628/D.cpp) | `dp` `*2200` | Jul/18/2018 01:53 | 
722 | [C - Relay Race](https://codeforces.com/contest/213/problem/C) | [GNU C++17](./codeforces/213/C.cpp) | `dp` `*2000` | Jul/17/2018 23:01 | 
721 | [J - Bottles](https://codeforces.com/contest/730/problem/J) | [GNU C++17](./codeforces/730/J.cpp) | `dp` `*1900` | Jul/17/2018 21:38 | 
720 | [D - Alyona and Strings](https://codeforces.com/contest/682/problem/D) | [GNU C++17](./codeforces/682/D.cpp) | `dp` `strings` `*1900` | Jul/17/2018 20:33 | 
719 | [B - Polycarp's Practice](https://codeforces.com/contest/1006/problem/B) | [GNU C++17](./codeforces/1006/B.cpp) | `greedy` `implementation` `sortings` `*1200` | Jul/16/2018 23:42 | 
718 | [C - Three Parts of the Array](https://codeforces.com/contest/1006/problem/C) | [GNU C++17](./codeforces/1006/C.cpp) | `binary search` `data structures` `two pointers` `*1200` | Jul/16/2018 23:39 | 
717 | [D - Two Strings Swaps](https://codeforces.com/contest/1006/problem/D) | [GNU C++17](./codeforces/1006/D.cpp) | `implementation` `*1700` | Jul/16/2018 23:36 | 
716 | [E - Military Problem](https://codeforces.com/contest/1006/problem/E) | [GNU C++17](./codeforces/1006/E.cpp) | `dfs and similar` `graphs` `trees` `*1600` | Jul/16/2018 23:32 | 
715 | [F - Xor-Paths](https://codeforces.com/contest/1006/problem/F) | [GNU C++17](./codeforces/1006/F.cpp) | `bitmasks` `brute force` `dp` `meet-in-the-middle` `*2100` | Jul/16/2018 23:26 | 
714 | [A - Adjacent Replacements](https://codeforces.com/contest/1006/problem/A) | [GNU C++17](./codeforces/1006/A.cpp) | `implementation` `*800` | Jul/16/2018 23:22 | 
713 | [D - Relatively Prime Graph](https://codeforces.com/contest/1009/problem/D) | [Python 3](./codeforces/1009/D.py) | `brute force` `constructive algorithms` `graphs` `greedy` `math` `*1700` | Jul/16/2018 20:27 | 
712 | [A - Game Shopping](https://codeforces.com/contest/1009/problem/A) | [Python 2](./codeforces/1009/A.py) | `implementation` `*800` | Jul/15/2018 16:32 | 
711 | [A - Romaji](https://codeforces.com/contest/1008/problem/A) | [GNU C++17](./codeforces/1008/A.cpp) | `implementation` `strings` `*900` | Jul/14/2018 04:01 | 
710 | [B - Turn the Rectangles](https://codeforces.com/contest/1008/problem/B) | [GNU C++17](./codeforces/1008/B.cpp) | `greedy` `sortings` `*1000` | Jul/14/2018 03:59 | 
709 | [C - Reorder the Array](https://codeforces.com/contest/1008/problem/C) | [GNU C++17](./codeforces/1008/C.cpp) | `combinatorics` `math` `*1300` | Jul/14/2018 03:57 | 
708 | [C - Prime Number](https://codeforces.com/contest/359/problem/C) | [GNU C++17](./codeforces/359/C.cpp) | `math` `number theory` `*1900` | Jul/12/2018 16:44 | 
707 | [F - Berland and the Shortest Paths](https://codeforces.com/contest/1005/problem/F) | [GNU C++17](./codeforces/1005/F.cpp) | `brute force` `dfs and similar` `graphs` `shortest paths` `*2100` | Jul/10/2018 03:12 | 
706 | [E2 - Median on Segments (General Case Edition)](https://codeforces.com/contest/1005/problem/E2) | [GNU C++17](./codeforces/1005/E2.cpp) | `sortings` `*2400` | Jul/10/2018 02:23 | 
705 | [E1 - Median on Segments (Permutations Edition)](https://codeforces.com/contest/1005/problem/E1) | [GNU C++17](./codeforces/1005/E1.cpp) | `sortings` `*1800` | Jul/10/2018 02:05 | 
704 | [D - Polycarp and Div 3](https://codeforces.com/contest/1005/problem/D) | [GNU C++17](./codeforces/1005/D.cpp) | `dp` `greedy` `number theory` `*1500` | Jul/10/2018 01:59 | 
703 | [C - Summarize to the Power of Two](https://codeforces.com/contest/1005/problem/C) | [GNU C++17](./codeforces/1005/C.cpp) | `brute force` `greedy` `implementation` `*1300` | Jul/10/2018 01:49 | 
702 | [B - Delete from the Left](https://codeforces.com/contest/1005/problem/B) | [GNU C++17](./codeforces/1005/B.cpp) | `brute force` `implementation` `strings` `*900` | Jul/10/2018 01:43 | 
701 | [A - Tanya and Stairways](https://codeforces.com/contest/1005/problem/A) | [GNU C++17](./codeforces/1005/A.cpp) | `implementation` `*800` | Jul/10/2018 01:38 | 
700 | [C - Sonya and Robots](https://codeforces.com/contest/1004/problem/C) | [GNU C++17](./codeforces/1004/C.cpp) | `constructive algorithms` `implementation` `*1400` | Jul/05/2018 23:04 | 
699 | [B - Sonya and Exhibition](https://codeforces.com/contest/1004/problem/B) | [GNU C++17](./codeforces/1004/B.cpp) | `constructive algorithms` `greedy` `implementation` `math` `*1300` | Jul/05/2018 22:53 | 
698 | [A - Sonya and Hotels](https://codeforces.com/contest/1004/problem/A) | [GNU C++17](./codeforces/1004/A.cpp) | `implementation` `*900` | Jul/05/2018 22:42 | 
697 | [A - Mishka and Contest](https://codeforces.com/contest/999/problem/A) | [GNU C++17](./codeforces/999/A.cpp) | `brute force` `implementation` `*800` | Jul/04/2018 17:11 | 
696 | [B - Reversing Encryption](https://codeforces.com/contest/999/problem/B) | [GNU C++17](./codeforces/999/B.cpp) | `implementation` `*900` | Jul/04/2018 17:07 | 
695 | [F - Cards and Joy](https://codeforces.com/contest/999/problem/F) | [GNU C++17](./codeforces/999/F.cpp) | `dp` `*2000` | Jul/04/2018 17:03 | 
694 | [E - Tree Constructing](https://codeforces.com/contest/1003/problem/E) | [GNU C++17](./codeforces/1003/E.cpp) | `constructive algorithms` `graphs` `*2100` | Jul/04/2018 16:41 | 
693 | [F - Abbreviation](https://codeforces.com/contest/1003/problem/F) | [GNU C++17](./codeforces/1003/F.cpp) | `dp` `hashing` `strings` `*2200` | Jul/04/2018 16:37 | 
692 | [B - Binary String Constructing](https://codeforces.com/contest/1003/problem/B) | [GNU C++17](./codeforces/1003/B.cpp) | `constructive algorithms` `*1300` | Jul/03/2018 23:44 | 
691 | [A - Polycarp's Pockets](https://codeforces.com/contest/1003/problem/A) | [GNU C++17](./codeforces/1003/A.cpp) | `implementation` `*800` | Jul/03/2018 23:44 | 
690 | [D - Coins and Queries](https://codeforces.com/contest/1003/problem/D) | [GNU C++17](./codeforces/1003/D.cpp) | `greedy` `*1600` | Jul/03/2018 23:43 | 
689 | [C - Intense Heat](https://codeforces.com/contest/1003/problem/C) | [GNU C++17](./codeforces/1003/C.cpp) | `brute force` `implementation` `math` `*1300` | Jul/03/2018 23:43 | 
688 | [B - Cutting](https://codeforces.com/contest/998/problem/B) | [GNU C++17](./codeforces/998/B.cpp) | `dp` `greedy` `sortings` `*1200` | Jul/02/2018 15:16 | 
687 | [D - Roman Digits](https://codeforces.com/contest/998/problem/D) | [GNU C++17](./codeforces/998/D.cpp) | `brute force` `combinatorics` `greedy` `*2000` | Jul/02/2018 15:14 | 
686 | [C - Convert to Ones](https://codeforces.com/contest/998/problem/C) | [GNU C++17](./codeforces/998/C.cpp) | `math` `*1500` | Jul/02/2018 15:07 | 
685 | [A - Balloons](https://codeforces.com/contest/998/problem/A) | [GNU C++17](./codeforces/998/A.cpp) | `constructive algorithms` `implementation` `*1000` | Jul/02/2018 15:03 | 
684 | [F - One Occurrence](https://codeforces.com/contest/1000/problem/F) | [GNU C++17](./codeforces/1000/F.cpp) | `data structures` `divide and conquer` `*2400` | Jun/28/2018 20:35 | 
683 | [D - Yet Another Problem On a Subsequence](https://codeforces.com/contest/1000/problem/D) | [GNU C++17](./codeforces/1000/D.cpp) | `combinatorics` `dp` `*1900` | Jun/28/2018 18:19 | 
682 | [B - Light It Up](https://codeforces.com/contest/1000/problem/B) | [GNU C++17](./codeforces/1000/B.cpp) | `greedy` `*1500` | Jun/28/2018 17:49 | 
681 | [C - Covered Points Count](https://codeforces.com/contest/1000/problem/C) | [GNU C++17](./codeforces/1000/C.cpp) | `data structures` `implementation` `sortings` `*1700` | Jun/28/2018 17:34 | 
680 | [A - Codehorses T-shirts](https://codeforces.com/contest/1000/problem/A) | [GNU C++17](./codeforces/1000/A.cpp) | `greedy` `implementation` `*1200` | Jun/28/2018 17:14 | 
679 | [C - Alphabetic Removals](https://codeforces.com/contest/999/problem/C) | [GNU C++17](./codeforces/999/C.cpp) | `implementation` `*1200` | Jun/25/2018 13:32 | 
678 | [D - Game](https://codeforces.com/contest/995/problem/D) | [GNU C++17](./codeforces/995/D.cpp) | `math` `*2500` | Jun/25/2018 13:20 | 
677 | [E - Leaving the Bar](https://codeforces.com/contest/996/problem/E) | [GNU C++17](./codeforces/996/E.cpp) | `brute force` `data structures` `geometry` `greedy` `math` `sortings` `*2300` | Jun/25/2018 02:51 | 
676 | [B - World Cup](https://codeforces.com/contest/996/problem/B) | [GNU C++17](./codeforces/996/B.cpp) | `binary search` `math` `*1300` | Jun/25/2018 02:45 | 
675 | [A - Hit the Lottery](https://codeforces.com/contest/996/problem/A) | [GNU C++17](./codeforces/996/A.cpp) | `dp` `greedy` `*800` | Jun/25/2018 02:42 | 
674 | [D - Suit and Tie](https://codeforces.com/contest/996/problem/D) | [GNU C++17](./codeforces/996/D.cpp) | `brute force` `greedy` `math` `*1400` | Jun/25/2018 02:41 | 
673 | [E - Post Lamps](https://codeforces.com/contest/990/problem/E) | [GNU C++17](./codeforces/990/E.cpp) | `brute force` `greedy` `*2100` | Jun/24/2018 19:20 | 
672 | [C - Bracket Sequences Concatenation Problem](https://codeforces.com/contest/990/problem/C) | [GNU C++17](./codeforces/990/C.cpp) | `implementation` `*1500` | Jun/24/2018 17:36 | 
671 | [D - Equalize the Remainders](https://codeforces.com/contest/999/problem/D) | [GNU C++17](./codeforces/999/D.cpp) | `data structures` `greedy` `implementation` `*1900` | Jun/24/2018 16:14 | 
670 | [E - Reachability from the Capital](https://codeforces.com/contest/999/problem/E) | [GNU C++17](./codeforces/999/E.cpp) | `dfs and similar` `graphs` `greedy` `*2000` | Jun/24/2018 15:52 | 
669 | [G - GCD Counting](https://codeforces.com/contest/990/problem/G) | [GNU C++17](./codeforces/990/G.cpp) | `divide and conquer` `dp` `dsu` `number theory` `trees` `*2400` | Jun/24/2018 15:45 | 
668 | [E - Bus Number](https://codeforces.com/contest/991/problem/E) | [GNU C++17](./codeforces/991/E.cpp) | `brute force` `combinatorics` `math` `*1800` | Jun/24/2018 15:25 | 
667 | [E - Thief in a Shop](https://codeforces.com/contest/632/problem/E) | [GNU C++17](./codeforces/632/E.cpp) | `divide and conquer` `dp` `fft` `math` `*2400` | Jun/07/2018 21:05 | 
666 | [E - Valera and Queries](https://codeforces.com/contest/369/problem/E) | [GNU C++17](./codeforces/369/E.cpp) | `binary search` `data structures` `*2200` | Jun/07/2018 19:39 | 
665 | [E - A and B and Lecture Rooms](https://codeforces.com/contest/519/problem/E) | [GNU C++17](./codeforces/519/E.cpp) | `binary search` `data structures` `dfs and similar` `dp` `trees` `*2100` | Jun/07/2018 04:12 | 
664 | [C - DZY Loves Fibonacci Numbers](https://codeforces.com/contest/446/problem/C) | [GNU C++17](./codeforces/446/C.cpp) | `data structures` `math` `number theory` `*2400` | Jun/06/2018 03:40 | 
663 | [E - Enemy is weak](https://codeforces.com/contest/61/problem/E) | [GNU C++17](./codeforces/61/E.cpp) | `data structures` `trees` `*1900` | Jun/05/2018 03:19 | 
662 | [D - Unusual Sequences](https://codeforces.com/contest/900/problem/D) | [GNU C++17](./codeforces/900/D.cpp) | `bitmasks` `combinatorics` `dp` `math` `number theory` `*2000` | Jun/05/2018 02:34 | 
661 | [D - Points and Powers of Two](https://codeforces.com/contest/988/problem/D) | [GNU C++17](./codeforces/988/D.cpp) | `brute force` `math` `*1800` | Jun/02/2018 21:21 | 
660 | [B - Substrings Sort](https://codeforces.com/contest/988/problem/B) | [GNU C++17](./codeforces/988/B.cpp) | `sortings` `strings` `*1100` | Jun/02/2018 04:57 | 
659 | [F - Rain and Umbrellas](https://codeforces.com/contest/988/problem/F) | [GNU C++17](./codeforces/988/F.cpp) | `dp` `*2100` | Jun/02/2018 04:53 | 
658 | [E - Divisibility by 25](https://codeforces.com/contest/988/problem/E) | [GNU C++17](./codeforces/988/E.cpp) | `brute force` `greedy` `*2100` | Jun/02/2018 04:09 | 
657 | [C - Equal Sums](https://codeforces.com/contest/988/problem/C) | [GNU C++17](./codeforces/988/C.cpp) | `implementation` `sortings` `*1400` | Jun/02/2018 01:32 | 
656 | [A - Diverse Team](https://codeforces.com/contest/988/problem/A) | [GNU C++17](./codeforces/988/A.cpp) | `brute force` `implementation` `*800` | Jun/02/2018 01:04 | 
655 | [G - Magic multisets](https://codeforces.com/contest/981/problem/G) | [GNU C++17](./codeforces/981/G.cpp) | `data structures` `*2500` | Jun/01/2018 19:30 | 
654 | [D - The Union of k-Segments](https://codeforces.com/contest/612/problem/D) | [GNU C++17](./codeforces/612/D.cpp) | `greedy` `sortings` `*1800` | Jun/01/2018 00:43 | 
653 | [B - "Or" Game](https://codeforces.com/contest/578/problem/B) | [GNU C++17](./codeforces/578/B.cpp) | `brute force` `greedy` `*1700` | Jun/01/2018 00:20 | 
652 | [C - Weakness and Poorness](https://codeforces.com/contest/578/problem/C) | [GNU C++17](./codeforces/578/C.cpp) | `ternary search` `*2000` | Jun/01/2018 00:10 | 
651 | [D - Restructuring Company](https://codeforces.com/contest/566/problem/D) | [GNU C++17](./codeforces/566/D.cpp) | `data structures` `dsu` `*1900` | May/31/2018 21:52 | 
650 | [B - Petr and Permutations](https://codeforces.com/contest/986/problem/B) | [GNU C++17](./codeforces/986/B.cpp) | `combinatorics` `math` `*1800` | May/31/2018 20:45 | 
649 | [D - Bubble Sort Graph](https://codeforces.com/contest/340/problem/D) | [GNU C++17](./codeforces/340/D.cpp) | `binary search` `data structures` `dp` `*1500` | May/31/2018 03:19 | 
648 | [E - Prince's Problem](https://codeforces.com/contest/986/problem/E) | [GNU C++17](./codeforces/986/E.cpp) | `brute force` `data structures` `math` `number theory` `trees` `*2800` | May/31/2018 02:53 | 
647 | [D - Perfect Encoding](https://codeforces.com/contest/986/problem/D) | [GNU C++17](./codeforces/986/D.cpp) | `fft` `math` `*3100` | May/30/2018 23:58 | 
646 | [C - AND Graph](https://codeforces.com/contest/986/problem/C) | [GNU C++17](./codeforces/986/C.cpp) | `bitmasks` `dfs and similar` `dsu` `graphs` `*2500` | May/30/2018 04:53 | 
645 | [B - High School: Become Human](https://codeforces.com/contest/987/problem/B) | [GNU C++17](./codeforces/987/B.cpp) | `math` `*1100` | May/30/2018 04:01 | 
644 | [E - Petr and Permutations](https://codeforces.com/contest/987/problem/E) | [GNU C++17](./codeforces/987/E.cpp) | `math` `*1800` | May/30/2018 03:57 | 
643 | [C - Three displays](https://codeforces.com/contest/987/problem/C) | [GNU C++17](./codeforces/987/C.cpp) | `brute force` `dp` `implementation` `*1400` | May/30/2018 03:55 | 
642 | [D - Fair](https://codeforces.com/contest/987/problem/D) | [GNU C++17](./codeforces/987/D.cpp) | `graphs` `shortest paths` `*1600` | May/30/2018 03:55 | 
641 | [A - Infinity Gauntlet](https://codeforces.com/contest/987/problem/A) | [GNU C++17](./codeforces/987/A.cpp) | `implementation` `*800` | May/30/2018 03:54 | 
640 | [A - Antipalindrome](https://codeforces.com/contest/981/problem/A) | [GNU C++17](./codeforces/981/A.cpp) | `brute force` `implementation` `strings` `*900` | May/28/2018 02:18 | 
639 | [B - Businessmen Problems](https://codeforces.com/contest/981/problem/B) | [GNU C++17](./codeforces/981/B.cpp) | `sortings` `*1000` | May/28/2018 02:15 | 
638 | [C - Useful Decomposition](https://codeforces.com/contest/981/problem/C) | [GNU C++17](./codeforces/981/C.cpp) | `implementation` `trees` `*1400` | May/28/2018 02:13 | 
637 | [D - Bookshelves](https://codeforces.com/contest/981/problem/D) | [GNU C++17](./codeforces/981/D.cpp) | `bitmasks` `dp` `greedy` `*1900` | May/28/2018 02:08 | 
636 | [E - Addition on Segments](https://codeforces.com/contest/981/problem/E) | [GNU C++17](./codeforces/981/E.cpp) | `bitmasks` `data structures` `divide and conquer` `dp` `*2200` | May/28/2018 02:00 | 
635 | [C - Ciel the Commander](https://codeforces.com/contest/321/problem/C) | [GNU C++17](./codeforces/321/C.cpp) | `constructive algorithms` `dfs and similar` `divide and conquer` `greedy` `trees` `*2100` | May/27/2018 05:53 | 
634 | [E - Xenia and Tree](https://codeforces.com/contest/342/problem/E) | [GNU C++17](./codeforces/342/E.cpp) | `data structures` `divide and conquer` `trees` `*2400` | May/27/2018 04:46 | 
633 | [D - Water Tree](https://codeforces.com/contest/343/problem/D) | [GNU C++17](./codeforces/343/D.cpp) | `data structures` `dfs and similar` `graphs` `trees` `*2100` | May/26/2018 05:35 | 
632 | [D - Multipliers](https://codeforces.com/contest/615/problem/D) | [GNU C++17](./codeforces/615/D.cpp) | `math` `number theory` `*2000` | May/25/2018 17:25 | 
631 | [D - Tree and Queries](https://codeforces.com/contest/375/problem/D) | [GNU C++17](./codeforces/375/D.cpp) | `data structures` `dfs and similar` `trees` `*2400` | May/25/2018 03:29 | 
630 | [D - Tree Requests](https://codeforces.com/contest/570/problem/D) | [GNU C++17](./codeforces/570/D.cpp) | `binary search` `bitmasks` `constructive algorithms` `dfs and similar` `graphs` `trees` `*2200` | May/25/2018 02:27 | 
629 | [E - Lomsat gelral](https://codeforces.com/contest/600/problem/E) | [GNU C++17](./codeforces/600/E.cpp) | `data structures` `dfs and similar` `dsu` `trees` `*2300` | May/25/2018 01:35 | 
628 | [E - Pencils and Boxes](https://codeforces.com/contest/985/problem/E) | [GNU C++17](./codeforces/985/E.cpp) | `binary search` `data structures` `dp` `greedy` `two pointers` `*2100` | May/22/2018 00:25 | 
627 | [C - Liebig's Barrels](https://codeforces.com/contest/985/problem/C) | [GNU C++17](./codeforces/985/C.cpp) | `greedy` `*1500` | May/22/2018 00:21 | 
626 | [B - Switches and Lamps](https://codeforces.com/contest/985/problem/B) | [GNU C++17](./codeforces/985/B.cpp) | `implementation` `*1200` | May/22/2018 00:18 | 
625 | [A - Chess Placing](https://codeforces.com/contest/985/problem/A) | [GNU C++17](./codeforces/985/A.cpp) | `implementation` `*1100` | May/22/2018 00:16 | 
624 | [D - Sand Fortress](https://codeforces.com/contest/985/problem/D) | [GNU C++17](./codeforces/985/D.cpp) | `binary search` `constructive algorithms` `math` `*2100` | May/22/2018 00:14 | 
623 | [D - Дерево](https://codeforces.com/contest/675/problem/D) | [GNU C++17](./codeforces/675/D.cpp) | `data structures` `trees` `*1800` | May/21/2018 16:25 | 
622 | [E - Bash Plays with Functions](https://codeforces.com/contest/757/problem/E) | [GNU C++17](./codeforces/757/E.cpp) | `brute force` `combinatorics` `dp` `number theory` `*2500` | May/21/2018 03:36 | 
621 | [D - Multiplication Table](https://codeforces.com/contest/448/problem/D) | [GNU C++17](./codeforces/448/D.cpp) | `binary search` `brute force` `*1800` | May/19/2018 21:51 | 
620 | [A - Links and Pearls](https://codeforces.com/contest/980/problem/A) | [GNU C++17](./codeforces/980/A.cpp) | `implementation` `math` `*900` | May/19/2018 02:34 | 
619 | [C - Tourist Problem](https://codeforces.com/contest/340/problem/C) | [GNU C++17](./codeforces/340/C.cpp) | `combinatorics` `implementation` `math` `*1600` | May/18/2018 22:50 | 
618 | [B - Mashmokh and ACM](https://codeforces.com/contest/414/problem/B) | [GNU C++17](./codeforces/414/B.cpp) | `combinatorics` `dp` `number theory` `*1400` | May/18/2018 22:36 | 
617 | [C - Cut 'em all!](https://codeforces.com/contest/982/problem/C) | [GNU C++17](./codeforces/982/C.cpp) | `dfs and similar` `dp` `graphs` `greedy` `trees` `*1500` | May/18/2018 03:00 | 
616 | [A - Row](https://codeforces.com/contest/982/problem/A) | [GNU C++17](./codeforces/982/A.cpp) | `brute force` `constructive algorithms` `*1200` | May/18/2018 02:59 | 
615 | [B - Bus of Characters](https://codeforces.com/contest/982/problem/B) | [GNU C++17](./codeforces/982/B.cpp) | `data structures` `greedy` `implementation` `*1300` | May/18/2018 02:59 | 
614 | [D - Kuro and GCD and XOR and SUM](https://codeforces.com/contest/979/problem/D) | [GNU C++17](./codeforces/979/D.cpp) | `binary search` `bitmasks` `brute force` `data structures` `dp` `dsu` `greedy` `math` `number theory` `strings` `trees` `*2200` | May/16/2018 16:45 | 
613 | [C - Kuro and Walking Route](https://codeforces.com/contest/979/problem/C) | [GNU C++17](./codeforces/979/C.cpp) | `dfs and similar` `trees` `*1600` | May/16/2018 16:08 | 
612 | [B - Treasure Hunt](https://codeforces.com/contest/979/problem/B) | [GNU C++17](./codeforces/979/B.cpp) | `greedy` `*1800` | May/16/2018 15:29 | 
611 | [A - Pizza, Pizza, Pizza!!!](https://codeforces.com/contest/979/problem/A) | [GNU C++17](./codeforces/979/A.cpp) | `math` `*1000` | May/16/2018 15:02 | 
610 | [A - Game](https://codeforces.com/contest/984/problem/A) | [GNU C++17](./codeforces/984/A.cpp) | `sortings` `*800` | May/16/2018 04:21 | 
609 | [B - Minesweeper](https://codeforces.com/contest/984/problem/B) | [GNU C++17](./codeforces/984/B.cpp) | `implementation` `*1100` | May/16/2018 04:18 | 
608 | [C - Finite or not?](https://codeforces.com/contest/984/problem/C) | [GNU C++17](./codeforces/984/C.cpp) | `implementation` `math` `number theory` `*1700` | May/16/2018 04:12 | 
607 | [D - XOR-pyramid](https://codeforces.com/contest/984/problem/D) | [GNU C++17](./codeforces/984/D.cpp) | `dp` `*1800` | May/16/2018 04:07 | 
606 | [G - Petya's Exams](https://codeforces.com/contest/978/problem/G) | [GNU C++17](./codeforces/978/G.cpp) | `greedy` `implementation` `sortings` `*1700` | May/15/2018 20:13 | 
605 | [F - Mentors](https://codeforces.com/contest/978/problem/F) | [GNU C++17](./codeforces/978/F.cpp) | `binary search` `data structures` `implementation` `*1500` | May/15/2018 19:50 | 
604 | [E - Bus Video System](https://codeforces.com/contest/978/problem/E) | [GNU C++17](./codeforces/978/E.cpp) | `combinatorics` `math` `*1400` | May/15/2018 19:33 | 
603 | [D - Almost Arithmetic Progression](https://codeforces.com/contest/978/problem/D) | [GNU C++17](./codeforces/978/D.cpp) | `brute force` `implementation` `math` `*1500` | May/15/2018 19:11 | 
602 | [C - Letters](https://codeforces.com/contest/978/problem/C) | [GNU C++17](./codeforces/978/C.cpp) | `binary search` `implementation` `two pointers` `*1000` | May/15/2018 18:30 | 
601 | [B - File Name](https://codeforces.com/contest/978/problem/B) | [GNU C++17](./codeforces/978/B.cpp) | `greedy` `strings` `*800` | May/15/2018 18:20 | 
600 | [A - Remove Duplicates](https://codeforces.com/contest/978/problem/A) | [GNU C++17](./codeforces/978/A.cpp) | `implementation` `*800` | May/15/2018 18:17 | 
599 | [D - Flowers](https://codeforces.com/contest/474/problem/D) | [GNU C++17](./codeforces/474/D.cpp) | `dp` `*1700` | May/12/2018 19:46 | 
598 | [C - Woodcutters](https://codeforces.com/contest/545/problem/C) | [GNU C++17](./codeforces/545/C.cpp) | `dp` `greedy` `*1500` | May/12/2018 19:14 | 
597 | [A - Vacations](https://codeforces.com/contest/698/problem/A) | [GNU C++17](./codeforces/698/A.cpp) | `dp` `*1400` | May/12/2018 18:52 | 
596 | [E - The Number Games](https://codeforces.com/contest/980/problem/E) | [GNU C++17](./codeforces/980/E.cpp) | `data structures` `greedy` `trees` `*2200` | May/10/2018 04:50 | 
595 | [D - Perfect Groups](https://codeforces.com/contest/980/problem/D) | [GNU C++17](./codeforces/980/D.cpp) | `dp` `math` `number theory` `*2100` | May/10/2018 04:09 | 
594 | [C - Posterized](https://codeforces.com/contest/980/problem/C) | [GNU C++17](./codeforces/980/C.cpp) | `games` `greedy` `*1700` | May/10/2018 03:05 | 
593 | [B - Marlin](https://codeforces.com/contest/980/problem/B) | [GNU C++17](./codeforces/980/B.cpp) | `constructive algorithms` `*1600` | May/10/2018 02:25 | 
592 | [F - Mahmoud and Ehab and yet another xor task](https://codeforces.com/contest/959/problem/F) | [GNU C++17](./codeforces/959/F.cpp) | `bitmasks` `dp` `math` `matrices` `*2400` | May/08/2018 13:48 | 
591 | [F - Consecutive Subsequence](https://codeforces.com/contest/977/problem/F) | [GNU C++17](./codeforces/977/F.cpp) | `dp` `*1700` | May/07/2018 02:17 | 
590 | [E - Cyclic Components](https://codeforces.com/contest/977/problem/E) | [GNU C++17](./codeforces/977/E.cpp) | `dfs and similar` `dsu` `graphs` `*1500` | May/07/2018 01:35 | 
589 | [D - Divide by three, multiply by two](https://codeforces.com/contest/977/problem/D) | [GNU C++17](./codeforces/977/D.cpp) | `dfs and similar` `math` `sortings` `*1400` | May/07/2018 01:25 | 
588 | [C - Less or Equal](https://codeforces.com/contest/977/problem/C) | [GNU C++17](./codeforces/977/C.cpp) | `sortings` `*1200` | May/07/2018 01:14 | 
587 | [B - Two-gram](https://codeforces.com/contest/977/problem/B) | [GNU C++17](./codeforces/977/B.cpp) | `implementation` `strings` `*900` | May/07/2018 00:53 | 
586 | [A - Wrong Subtraction](https://codeforces.com/contest/977/problem/A) | [GNU C++17](./codeforces/977/A.cpp) | `implementation` `*800` | May/07/2018 00:48 | 
585 | [A - Little Elephant and Bits](https://codeforces.com/contest/258/problem/A) | [GNU C++17](./codeforces/258/A.cpp) | `greedy` `math` `*1100` | May/06/2018 18:57 | 
584 | [A - Aramic script](https://codeforces.com/contest/975/problem/A) | [GNU C++17](./codeforces/975/A.cpp) | `implementation` `strings` `*900` | May/02/2018 03:30 | 
583 | [B - Mancala](https://codeforces.com/contest/975/problem/B) | [GNU C++17](./codeforces/975/B.cpp) | `brute force` `implementation` `*1100` | May/02/2018 03:28 | 
582 | [C - Valhalla Siege](https://codeforces.com/contest/975/problem/C) | [GNU C++17](./codeforces/975/C.cpp) | `binary search` `*1400` | May/02/2018 03:27 | 
581 | [D - Ghosts](https://codeforces.com/contest/975/problem/D) | [GNU C++17](./codeforces/975/D.cpp) | `geometry` `math` `*2000` | May/02/2018 03:18 | 
580 | [D - Degree Set](https://codeforces.com/contest/976/problem/D) | [GNU C++17](./codeforces/976/D.cpp) | `constructive algorithms` `graphs` `implementation` `*2500` | May/01/2018 00:25 | 
579 | [E - Well played!](https://codeforces.com/contest/976/problem/E) | [GNU C++17](./codeforces/976/E.cpp) | `greedy` `sortings` `*2100` | May/01/2018 00:19 | 
578 | [C - Nested Segments](https://codeforces.com/contest/976/problem/C) | [GNU C++17](./codeforces/976/C.cpp) | `greedy` `implementation` `sortings` `*1500` | May/01/2018 00:13 | 
577 | [B - Lara Croft and the New Game](https://codeforces.com/contest/976/problem/B) | [GNU C++17](./codeforces/976/B.cpp) | `implementation` `math` `*1300` | May/01/2018 00:10 | 
576 | [A - Minimum Binary Number](https://codeforces.com/contest/976/problem/A) | [GNU C++17](./codeforces/976/A.cpp) | `implementation` `*800` | May/01/2018 00:08 | 
575 | [E - Alternating Tree](https://codeforces.com/contest/960/problem/E) | [GNU C++17](./codeforces/960/E.cpp) | `combinatorics` `dfs and similar` `divide and conquer` `dp` `probabilities` `trees` `*2300` | Apr/30/2018 16:59 | 
574 | [E - Big Secret](https://codeforces.com/contest/967/problem/E) | [GNU C++17](./codeforces/967/E.cpp) | `constructive algorithms` `math` `*2200` | Apr/30/2018 01:17 | 
573 | [D - Resource Distribution](https://codeforces.com/contest/967/problem/D) | [GNU C++17](./codeforces/967/D.cpp) | `binary search` `sortings` `*1700` | Apr/30/2018 01:01 | 
572 | [A - Mind the Gap](https://codeforces.com/contest/967/problem/A) | [GNU C++17](./codeforces/967/A.cpp) | `implementation` `*1100` | Apr/30/2018 00:44 | 
571 | [B - Watering System](https://codeforces.com/contest/967/problem/B) | [GNU C++17](./codeforces/967/B.cpp) | `math` `sortings` `*1000` | Apr/30/2018 00:44 | 
570 | [C - Stairs and Elevators](https://codeforces.com/contest/967/problem/C) | [GNU C++17](./codeforces/967/C.cpp) | `binary search` `*1600` | Apr/30/2018 00:43 | 
569 | [C - Trees](https://codeforces.com/contest/58/problem/C) | [GNU C++17](./codeforces/58/C.cpp) | `brute force` `*1800` | Apr/28/2018 18:06 | 
568 | [D - Mike and Feet](https://codeforces.com/contest/548/problem/D) | [GNU C++17](./codeforces/548/D.cpp) | `binary search` `data structures` `dp` `*1900` | Apr/28/2018 18:05 | 
567 | [E - Short Code](https://codeforces.com/contest/965/problem/E) | [GNU C++17](./codeforces/965/E.cpp) | `data structures` `dp` `greedy` `strings` `trees` `*2200` | Apr/26/2018 03:17 | 
566 | [A - Paper Airplanes](https://codeforces.com/contest/965/problem/A) | [GNU C++17](./codeforces/965/A.cpp) | `math` `*800` | Apr/26/2018 02:52 | 
565 | [B - Battleship](https://codeforces.com/contest/965/problem/B) | [GNU C++17](./codeforces/965/B.cpp) | `implementation` `*1300` | Apr/26/2018 02:49 | 
564 | [C - Greedy Arkady](https://codeforces.com/contest/965/problem/C) | [GNU C++17](./codeforces/965/C.cpp) | `math` `*2000` | Apr/26/2018 02:46 | 
563 | [D - Single-use Stones](https://codeforces.com/contest/965/problem/D) | [GNU C++17](./codeforces/965/D.cpp) | `binary search` `flows` `greedy` `two pointers` `*1900` | Apr/26/2018 02:43 | 
562 | [C - Karen and Game](https://codeforces.com/contest/816/problem/C) | [GNU C++17](./codeforces/816/C.cpp) | `brute force` `greedy` `implementation` `*1700` | Apr/23/2018 19:56 | 
561 | [B - Karen and Coffee](https://codeforces.com/contest/816/problem/B) | [GNU C++17](./codeforces/816/B.cpp) | `binary search` `data structures` `implementation` `*1400` | Apr/23/2018 19:22 | 
560 | [A - Karen and Morning](https://codeforces.com/contest/816/problem/A) | [GNU C++17](./codeforces/816/A.cpp) | `brute force` `implementation` `*1000` | Apr/23/2018 19:11 | 
559 | [B - Wonder Room](https://codeforces.com/contest/466/problem/B) | [GNU C++17](./codeforces/466/B.cpp) | `brute force` `math` `*2000` | Apr/20/2018 18:29 | 
558 | [B - Appleman and Tree](https://codeforces.com/contest/461/problem/B) | [GNU C++17](./codeforces/461/B.cpp) | `dfs and similar` `dp` `trees` `*2000` | Apr/20/2018 17:53 | 
557 | [A - DZY Loves Sequences](https://codeforces.com/contest/446/problem/A) | [GNU C++17](./codeforces/446/A.cpp) | `dp` `implementation` `two pointers` `*1600` | Apr/20/2018 17:01 | 
556 | [B - Little Pony and Harmony Chest](https://codeforces.com/contest/453/problem/B) | [GNU C++17](./codeforces/453/B.cpp) | `bitmasks` `brute force` `dp` `*2000` | Apr/20/2018 16:59 | 
555 | [D - Little Girl and Maximum XOR](https://codeforces.com/contest/276/problem/D) | [GNU C++17](./codeforces/276/D.cpp) | `bitmasks` `dp` `greedy` `implementation` `math` `*1700` | Apr/20/2018 05:23 | 
554 | [C - Little Girl and Maximum Sum](https://codeforces.com/contest/276/problem/C) | [GNU C++17](./codeforces/276/C.cpp) | `data structures` `greedy` `implementation` `sortings` `*1500` | Apr/20/2018 04:37 | 
553 | [E - XOR and Favorite Number](https://codeforces.com/contest/617/problem/E) | [GNU C++17](./codeforces/617/E.cpp) | `data structures` `*2200` | Apr/20/2018 03:51 | 
552 | [D1 - Hyperspace Jump (easy)](https://codeforces.com/contest/958/problem/D1) | [GNU C++17](./codeforces/958/D1.cpp) | `expression parsing` `math` `*1400` | Apr/19/2018 18:37 | 
551 | [C1 - Encryption (easy)](https://codeforces.com/contest/958/problem/C1) | [GNU C++17](./codeforces/958/C1.cpp) | `brute force` `*1200` | Apr/19/2018 18:19 | 
550 | [B1 - Maximum Control (easy)](https://codeforces.com/contest/958/problem/B1) | [GNU C++17](./codeforces/958/B1.cpp) | `implementation` `*1000` | Apr/19/2018 18:13 | 
549 | [F1 - Lightsabers (easy)](https://codeforces.com/contest/958/problem/F1) | [GNU C++17](./codeforces/958/F1.cpp) | `implementation` `*1500` | Apr/19/2018 18:05 | 
548 | [D - Destruction of a Tree](https://codeforces.com/contest/964/problem/D) | [GNU C++17](./codeforces/964/D.cpp) | `dfs and similar` `dp` `trees` `*2000` | Apr/17/2018 23:47 | 
547 | [C - Alternating Sum](https://codeforces.com/contest/964/problem/C) | [GNU C++17](./codeforces/964/C.cpp) | `math` `matrices` `number theory` `*1800` | Apr/17/2018 23:35 | 
546 | [B - Messages](https://codeforces.com/contest/964/problem/B) | [GNU C++17](./codeforces/964/B.cpp) | `math` `*1300` | Apr/17/2018 23:27 | 
545 | [A - Splits](https://codeforces.com/contest/964/problem/A) | [GNU C++17](./codeforces/964/A.cpp) | `math` `*800` | Apr/17/2018 23:26 | 
544 | [B - Maximum Value](https://codeforces.com/contest/484/problem/B) | [GNU C++17](./codeforces/484/B.cpp) | `binary search` `math` `sortings` `two pointers` `*2100` | Apr/16/2018 00:29 | 
543 | [C - Painting Fence](https://codeforces.com/contest/448/problem/C) | [GNU C++17](./codeforces/448/C.cpp) | `divide and conquer` `dp` `greedy` `*1900` | Apr/16/2018 00:28 | 
542 | [C - Propagating tree](https://codeforces.com/contest/383/problem/C) | [GNU C++17](./codeforces/383/C.cpp) | `data structures` `dfs and similar` `trees` `*2000` | Apr/16/2018 00:28 | 
541 | [E - Team Work](https://codeforces.com/contest/932/problem/E) | [GNU C++17](./codeforces/932/E.cpp) | `combinatorics` `dp` `math` `*2400` | Apr/13/2018 14:47 | 
540 | [E - Water Taps](https://codeforces.com/contest/954/problem/E) | [GNU C++17](./codeforces/954/E.cpp) | `binary search` `greedy` `sortings` `*2000` | Apr/13/2018 01:15 | 
539 | [G - Castle Defense](https://codeforces.com/contest/954/problem/G) | [GNU C++17](./codeforces/954/G.cpp) | `binary search` `data structures` `greedy` `two pointers` `*2000` | Apr/12/2018 18:35 | 
538 | [E - Byteland, Berland and Disputed Cities](https://codeforces.com/contest/962/problem/E) | [GNU C++17](./codeforces/962/E.cpp) | `constructive algorithms` `greedy` `*2200` | Apr/12/2018 00:10 | 
537 | [D - Merge Equals](https://codeforces.com/contest/962/problem/D) | [GNU C++17](./codeforces/962/D.cpp) | `data structures` `implementation` `*1600` | Apr/11/2018 04:47 | 
536 | [A - Equator](https://codeforces.com/contest/962/problem/A) | [GNU C++17](./codeforces/962/A.cpp) | `implementation` `*1300` | Apr/11/2018 04:46 | 
535 | [B - Students in Railway Carriage](https://codeforces.com/contest/962/problem/B) | [GNU C++17](./codeforces/962/B.cpp) | `constructive algorithms` `greedy` `implementation` `*1300` | Apr/11/2018 04:46 | 
534 | [C - Make a Square](https://codeforces.com/contest/962/problem/C) | [GNU C++17](./codeforces/962/C.cpp) | `brute force` `implementation` `math` `*1400` | Apr/11/2018 04:46 | 
533 | [D - Fedor and coupons](https://codeforces.com/contest/754/problem/D) | [GNU C++17](./codeforces/754/D.cpp) | `binary search` `data structures` `greedy` `sortings` `*2100` | Apr/10/2018 20:17 | 
532 | [D1 - Magic Powder - 1](https://codeforces.com/contest/670/problem/D1) | [GNU C++17](./codeforces/670/D1.cpp) | `binary search` `brute force` `implementation` `*1400` | Apr/10/2018 19:12 | 
531 | [D2 - Magic Powder - 2](https://codeforces.com/contest/670/problem/D2) | [GNU C++17](./codeforces/670/D2.cpp) | `binary search` `implementation` `*1500` | Apr/10/2018 19:11 | 
530 | [F - Pathwalks](https://codeforces.com/contest/960/problem/F) | [GNU C++17](./codeforces/960/F.cpp) | `data structures` `dp` `graphs` `*2100` | Apr/08/2018 18:20 | 
529 | [C - Subsequence Counting](https://codeforces.com/contest/960/problem/C) | [GNU C++17](./codeforces/960/C.cpp) | `bitmasks` `constructive algorithms` `greedy` `implementation` `*1700` | Apr/07/2018 22:49 | 
528 | [B - Minimize the error](https://codeforces.com/contest/960/problem/B) | [GNU C++17](./codeforces/960/B.cpp) | `data structures` `greedy` `sortings` `*1500` | Apr/07/2018 22:23 | 
527 | [A - Check the string](https://codeforces.com/contest/960/problem/A) | [GNU C++17](./codeforces/960/A.cpp) | `implementation` `*1200` | Apr/07/2018 22:11 | 
526 | [C - Jon Snow and his Favourite Number](https://codeforces.com/contest/768/problem/C) | [GNU C++17](./codeforces/768/C.cpp) | `brute force` `dp` `implementation` `sortings` `*1800` | Apr/07/2018 15:54 | 
525 | [E - Tufurama](https://codeforces.com/contest/961/problem/E) | [GNU C++17](./codeforces/961/E.cpp) | `data structures` `*1900` | Apr/06/2018 00:31 | 
524 | [C - Chessboard](https://codeforces.com/contest/961/problem/C) | [GNU C++17](./codeforces/961/C.cpp) | `bitmasks` `brute force` `implementation` `*1400` | Apr/04/2018 22:37 | 
523 | [D - Pair Of Lines](https://codeforces.com/contest/961/problem/D) | [GNU C++17](./codeforces/961/D.cpp) | `geometry` `*2000` | Apr/04/2018 22:25 | 
522 | [A - Tetris](https://codeforces.com/contest/961/problem/A) | [GNU C++17](./codeforces/961/A.cpp) | `implementation` `*900` | Apr/04/2018 22:24 | 
521 | [B - Lecture Sleep](https://codeforces.com/contest/961/problem/B) | [GNU C++17](./codeforces/961/B.cpp) | `data structures` `dp` `implementation` `two pointers` `*1200` | Apr/04/2018 22:24 | 
520 | [E - Mahmoud and Ehab and the xor-MST](https://codeforces.com/contest/959/problem/E) | [GNU C++17](./codeforces/959/E.cpp) | `bitmasks` `dp` `graphs` `implementation` `math` `*1900` | Apr/04/2018 01:26 | 
519 | [D - Mahmoud and Ehab and another array construction task](https://codeforces.com/contest/959/problem/D) | [GNU C++17](./codeforces/959/D.cpp) | `constructive algorithms` `greedy` `math` `number theory` `*1900` | Apr/04/2018 00:59 | 
518 | [C - Mahmoud and Ehab and the wrong algorithm](https://codeforces.com/contest/959/problem/C) | [GNU C++17](./codeforces/959/C.cpp) | `constructive algorithms` `trees` `*1500` | Apr/03/2018 22:58 | 
517 | [B - Mahmoud and Ehab and the message](https://codeforces.com/contest/959/problem/B) | [GNU C++17](./codeforces/959/B.cpp) | `dsu` `greedy` `implementation` `*1200` | Apr/03/2018 22:29 | 
516 | [A - Mahmoud and Ehab and the even-odd game](https://codeforces.com/contest/959/problem/A) | [GNU C++17](./codeforces/959/A.cpp) | `games` `math` `*800` | Apr/03/2018 22:11 | 
515 | [C - Divisibility by Eight](https://codeforces.com/contest/550/problem/C) | [GNU C++17](./codeforces/550/C.cpp) | `brute force` `dp` `math` `*1500` | Apr/02/2018 23:49 | 
514 | [A - Maze](https://codeforces.com/contest/377/problem/A) | [GNU C++17](./codeforces/377/A.cpp) | `dfs and similar` `*1600` | Apr/02/2018 12:35 | 
513 | [A - Learning Languages](https://codeforces.com/contest/277/problem/A) | [GNU C++17](./codeforces/277/A.cpp) | `dfs and similar` `dsu` `*1400` | Apr/02/2018 11:50 | 
512 | [D - I'm Feeling Lucky!](https://codeforces.com/contest/952/problem/D) | [GNU C++17](./codeforces/952/D.cpp) | `probabilities` `*1800` | Apr/02/2018 00:40 | 
511 | [B - A Map of the Cat](https://codeforces.com/contest/952/problem/B) | [GNU C++17](./codeforces/952/B.cpp) | `brute force` `interactive` `*1900` | Apr/01/2018 22:56 | 
510 | [C - Ravioli Sort](https://codeforces.com/contest/952/problem/C) | [GNU C++17](./codeforces/952/C.cpp) | `implementation` `*1600` | Apr/01/2018 22:39 | 
509 | [A - Quirky Quantifiers](https://codeforces.com/contest/952/problem/A) | [GNU C++17](./codeforces/952/A.cpp) | `math` `*800` | Apr/01/2018 21:40 | 
508 | [D - Fight Against Traffic](https://codeforces.com/contest/954/problem/D) | [GNU C++14](./codeforces/954/D.cpp) | `dfs and similar` `graphs` `shortest paths` `*1600` | Mar/27/2018 17:44 | 
507 | [D - Dense Subsequence](https://codeforces.com/contest/724/problem/D) | [GNU C++17](./codeforces/724/D.cpp) | `data structures` `greedy` `strings` `*1900` | Mar/26/2018 21:55 | 
506 | [B - Batch Sort](https://codeforces.com/contest/724/problem/B) | [GNU C++17](./codeforces/724/B.cpp) | `brute force` `greedy` `implementation` `math` `*1500` | Mar/26/2018 21:09 | 
505 | [A - Checking the Calendar](https://codeforces.com/contest/724/problem/A) | [GNU C++17](./codeforces/724/A.cpp) | `implementation` `*1000` | Mar/26/2018 20:54 | 
504 | [E - Tetrahedron](https://codeforces.com/contest/166/problem/E) | [GNU C++17](./codeforces/166/E.cpp) | `dp` `math` `matrices` `*1500` | Mar/26/2018 20:33 | 
503 | [E - Divisors](https://codeforces.com/contest/448/problem/E) | [GNU C++17](./codeforces/448/E.cpp) | `brute force` `dfs and similar` `implementation` `number theory` `*2200` | Mar/26/2018 12:48 | 
502 | [E - Generate a String](https://codeforces.com/contest/710/problem/E) | [GNU C++17](./codeforces/710/E.cpp) | `dfs and similar` `dp` `*2000` | Mar/26/2018 12:04 | 
501 | [C - Matrix Walk](https://codeforces.com/contest/954/problem/C) | [GNU C++17](./codeforces/954/C.cpp) | `implementation` `*1700` | Mar/25/2018 22:22 | 
500 | [C - Is This a Zebra?](https://codeforces.com/contest/926/problem/C) | [GNU C++17](./codeforces/926/C.cpp) | `*1700` | Mar/25/2018 16:50 | 
499 | [A - Tritonic Iridescence](https://codeforces.com/contest/957/problem/A) | [GNU C++17](./codeforces/957/A.cpp) | `implementation` `*1300` | Mar/25/2018 16:45 | 
498 | [B - Mystical Mosaic](https://codeforces.com/contest/957/problem/B) | [GNU C++17](./codeforces/957/B.cpp) | `brute force` `greedy` `implementation` `*1300` | Mar/25/2018 16:44 | 
497 | [D - Riverside Curio](https://codeforces.com/contest/957/problem/D) | [GNU C++17](./codeforces/957/D.cpp) | `dp` `greedy` `*1700` | Mar/25/2018 16:43 | 
496 | [C - Three-level Laser](https://codeforces.com/contest/957/problem/C) | [GNU C++14](./codeforces/957/C.cpp) | `binary search` `greedy` `math` `two pointers` `*1600` | Mar/25/2018 16:35 | 
495 | [A - Feed the cat](https://codeforces.com/contest/955/problem/A) | [GNU C++14](./codeforces/955/A.cpp) | `greedy` `math` `*1100` | Mar/24/2018 20:33 | 
494 | [B - String Typing](https://codeforces.com/contest/954/problem/B) | [GNU C++14](./codeforces/954/B.cpp) | `implementation` `strings` `*1400` | Mar/24/2018 20:32 | 
493 | [B - Not simply beatiful strings](https://codeforces.com/contest/955/problem/B) | [GNU C++14](./codeforces/955/B.cpp) | `implementation` `*1400` | Mar/24/2018 20:28 | 
492 | [A - Diagonal Walking](https://codeforces.com/contest/954/problem/A) | [GNU C++14](./codeforces/954/A.cpp) | `implementation` `*800` | Mar/24/2018 20:22 | 
491 | [C - Sad powers](https://codeforces.com/contest/955/problem/C) | [GNU C++14](./codeforces/955/C.cpp) | `binary search` `math` `number theory` `*2100` | Mar/24/2018 20:22 | 
490 | [B - Complete the Word](https://codeforces.com/contest/716/problem/B) | [GNU C++17](./codeforces/716/B.cpp) | `greedy` `two pointers` `*1300` | Mar/21/2018 18:33 | 
489 | [A - The Monster](https://codeforces.com/contest/787/problem/A) | [Java 8](./codeforces/787/A.java) | `brute force` `math` `number theory` `*1200` | Mar/21/2018 17:53 | 
488 | [A - 2-3-numbers](https://codeforces.com/contest/926/problem/A) | [Java 8](./codeforces/926/A.java) | `implementation` `math` `*1300` | Mar/20/2018 15:25 | 
487 | [D - Polo the Penguin and Houses ](https://codeforces.com/contest/289/problem/D) | [GNU C++17](./codeforces/289/D.cpp) | `brute force` `combinatorics` `dfs and similar` `math` `*1500` | Mar/18/2018 02:09 | 
486 | [E - Polo the Penguin and XOR operation](https://codeforces.com/contest/289/problem/E) | [GNU C++17](./codeforces/289/E.cpp) | `data structures` `greedy` `implementation` `math` `*1700` | Mar/18/2018 02:00 | 
485 | [C - Polo the Penguin and Strings](https://codeforces.com/contest/289/problem/C) | [GNU C++17](./codeforces/289/C.cpp) | `constructive algorithms` `implementation` `*1300` | Mar/18/2018 01:01 | 
484 | [A - Polo the Penguin and Segments ](https://codeforces.com/contest/289/problem/A) | [GNU C++17](./codeforces/289/A.cpp) | `brute force` `implementation` `*1100` | Mar/18/2018 00:50 | 
483 | [B - Polo the Penguin and Matrix](https://codeforces.com/contest/289/problem/B) | [GNU C++17](./codeforces/289/B.cpp) | `brute force` `dp` `implementation` `sortings` `ternary search` `*1400` | Mar/18/2018 00:45 | 
482 | [A - 2-3-numbers](https://codeforces.com/contest/953/problem/A) | [GNU C++17](./codeforces/953/A.cpp) | `*1300` | Mar/18/2018 00:00 | 
481 | [D - Alyona and a tree](https://codeforces.com/contest/740/problem/D) | [GNU C++14](./codeforces/740/D.cpp) | `binary search` `data structures` `dfs and similar` `graph matchings` `graphs` `*1900` | Mar/17/2018 01:20 | 
480 | [C - Alyona and mex](https://codeforces.com/contest/740/problem/C) | [GNU C++14](./codeforces/740/C.cpp) | `constructive algorithms` `*1700` | Mar/16/2018 18:54 | 
479 | [B - Alyona and flowers](https://codeforces.com/contest/740/problem/B) | [GNU C++14](./codeforces/740/B.cpp) | `constructive algorithms` `*1200` | Mar/16/2018 18:37 | 
478 | [A - Alyona and copybooks](https://codeforces.com/contest/740/problem/A) | [GNU C++14](./codeforces/740/A.cpp) | `brute force` `implementation` `*1300` | Mar/16/2018 18:27 | 
477 | [B - Zuma](https://codeforces.com/contest/607/problem/B) | [GNU C++14](./codeforces/607/B.cpp) | `dp` `*1900` | Mar/16/2018 01:13 | 
476 | [F - Bear and Bowling 4](https://codeforces.com/contest/660/problem/F) | [GNU C++14](./codeforces/660/F.cpp) | `binary search` `data structures` `geometry` `ternary search` `*2500` | Mar/16/2018 01:09 | 
475 | [A - XOR Equation](https://codeforces.com/contest/627/problem/A) | [GNU C++14](./codeforces/627/A.cpp) | `dp` `math` `*1700` | Mar/14/2018 01:20 | 
474 | [B - Tell Your World](https://codeforces.com/contest/849/problem/B) | [GNU C++14](./codeforces/849/B.cpp) | `brute force` `geometry` `*1600` | Mar/13/2018 19:20 | 
473 | [C - From Y to Y](https://codeforces.com/contest/849/problem/C) | [GNU C++14](./codeforces/849/C.cpp) | `constructive algorithms` `*1600` | Mar/13/2018 19:00 | 
472 | [A - Odds and Ends](https://codeforces.com/contest/849/problem/A) | [GNU C++14](./codeforces/849/A.cpp) | `implementation` `*1000` | Mar/13/2018 18:34 | 
471 | [D - Leha and another game about graph](https://codeforces.com/contest/841/problem/D) | [GNU C++14](./codeforces/841/D.cpp) | `dfs and similar` `graphs` `*2100` | Mar/12/2018 01:43 | 
470 | [C - Leha and Function](https://codeforces.com/contest/841/problem/C) | [GNU C++14](./codeforces/841/C.cpp) | `greedy` `*1300` | Mar/12/2018 01:12 | 
469 | [B - Godsend](https://codeforces.com/contest/841/problem/B) | [GNU C++14](./codeforces/841/B.cpp) | `games` `math` `*1100` | Mar/12/2018 00:57 | 
468 | [A - Generous Kefa](https://codeforces.com/contest/841/problem/A) | [GNU C++14](./codeforces/841/A.cpp) | `brute force` `implementation` `*900` | Mar/12/2018 00:45 | 
467 | [C - Magic Formulas](https://codeforces.com/contest/424/problem/C) | [GNU C++14](./codeforces/424/C.cpp) | `math` `*1600` | Mar/11/2018 04:51 | 
466 | [D - Perfect Security](https://codeforces.com/contest/948/problem/D) | [GNU C++14](./codeforces/948/D.cpp) | `data structures` `greedy` `strings` `trees` `*1800` | Mar/11/2018 02:16 | 
465 | [A - Protect Sheep](https://codeforces.com/contest/948/problem/A) | [GNU C++14](./codeforces/948/A.cpp) | `brute force` `dfs and similar` `graphs` `implementation` `*900` | Mar/11/2018 02:15 | 
464 | [C - Producing Snow](https://codeforces.com/contest/948/problem/C) | [GNU C++14](./codeforces/948/C.cpp) | `binary search` `data structures` `*1600` | Mar/11/2018 02:12 | 
463 | [B - Primal Sport](https://codeforces.com/contest/948/problem/B) | [GNU C++14](./codeforces/948/B.cpp) | `brute force` `math` `number theory` `*1700` | Mar/11/2018 02:00 | 
462 | [A - Zebras](https://codeforces.com/contest/949/problem/A) | [GNU C++14](./codeforces/949/A.cpp) | `greedy` `*1600` | Mar/09/2018 20:10 | 
461 | [B - Intercepted Message](https://codeforces.com/contest/950/problem/B) | [GNU C++14](./codeforces/950/B.cpp) | `greedy` `implementation` `*1100` | Mar/09/2018 14:33 | 
460 | [A - Left-handers, Right-handers and Ambidexters](https://codeforces.com/contest/950/problem/A) | [GNU C++14](./codeforces/950/A.cpp) | `implementation` `math` `*800` | Mar/09/2018 14:14 | 
459 | [C - The Meaningless Game](https://codeforces.com/contest/834/problem/C) | [GNU C++14](./codeforces/834/C.cpp) | `math` `*1700` | Mar/07/2018 18:50 | 
458 | [B - The Festive Evening](https://codeforces.com/contest/834/problem/B) | [GNU C++14](./codeforces/834/B.cpp) | `data structures` `implementation` `*1100` | Mar/07/2018 18:07 | 
457 | [A - The Useless Toy](https://codeforces.com/contest/834/problem/A) | [GNU C++14](./codeforces/834/A.cpp) | `implementation` `*900` | Mar/07/2018 17:58 | 
456 | [D - Timetable](https://codeforces.com/contest/946/problem/D) | [GNU C++14](./codeforces/946/D.cpp) | `dp` `*1800` | Mar/07/2018 14:29 | 
455 | [C - String Transformation](https://codeforces.com/contest/946/problem/C) | [GNU C++14](./codeforces/946/C.cpp) | `greedy` `strings` `*1300` | Mar/07/2018 00:48 | 
454 | [B - Weird Subtraction Process](https://codeforces.com/contest/946/problem/B) | [GNU C++14](./codeforces/946/B.cpp) | `math` `number theory` `*1100` | Mar/07/2018 00:40 | 
453 | [A - Partition](https://codeforces.com/contest/946/problem/A) | [GNU C++14](./codeforces/946/A.cpp) | `greedy` `*800` | Mar/07/2018 00:32 | 
452 | [C - Laboratory Work](https://codeforces.com/contest/931/problem/C) | [GNU C++14](./codeforces/931/C.cpp) | `implementation` `math` `*1700` | Mar/05/2018 02:09 | 
451 | [D - Peculiar apple-tree](https://codeforces.com/contest/931/problem/D) | [GNU C++14](./codeforces/931/D.cpp) | `dfs and similar` `graphs` `trees` `*1500` | Mar/05/2018 01:29 | 
450 | [A - Friends Meeting](https://codeforces.com/contest/931/problem/A) | [GNU C++14](./codeforces/931/A.cpp) | `brute force` `greedy` `implementation` `math` `*800` | Mar/05/2018 00:47 | 
449 | [B - World Cup](https://codeforces.com/contest/931/problem/B) | [GNU C++14](./codeforces/931/B.cpp) | `constructive algorithms` `implementation` `*1200` | Mar/05/2018 00:47 | 
448 | [C - Memory and De-Evolution](https://codeforces.com/contest/712/problem/C) | [GNU C++14](./codeforces/712/C.cpp) | `greedy` `math` `*1600` | Mar/02/2018 02:41 | 
447 | [B - Memory and Trident](https://codeforces.com/contest/712/problem/B) | [GNU C++14](./codeforces/712/B.cpp) | `implementation` `strings` `*1100` | Mar/02/2018 02:31 | 
446 | [A - Memory and Crow](https://codeforces.com/contest/712/problem/A) | [GNU C++14](./codeforces/712/A.cpp) | `implementation` `math` `*800` | Mar/02/2018 02:03 | 
445 | [C - Planning](https://codeforces.com/contest/854/problem/C) | [GNU C++14](./codeforces/854/C.cpp) | `*1500` | Mar/01/2018 16:11 | 
444 | [B - Maxim Buys an Apartment](https://codeforces.com/contest/854/problem/B) | [GNU C++14](./codeforces/854/B.cpp) | `constructive algorithms` `math` `*1200` | Mar/01/2018 15:54 | 
443 | [A - Fraction](https://codeforces.com/contest/854/problem/A) | [GNU C++14](./codeforces/854/A.cpp) | `brute force` `constructive algorithms` `math` `*800` | Mar/01/2018 15:48 | 
442 | [C - Mahmoud and Ehab and the xor](https://codeforces.com/contest/862/problem/C) | [GNU C++14](./codeforces/862/C.cpp) | `constructive algorithms` `*1900` | Mar/01/2018 15:36 | 
441 | [B - Mahmoud and Ehab and the bipartiteness](https://codeforces.com/contest/862/problem/B) | [GNU C++14](./codeforces/862/B.cpp) | `dfs and similar` `graphs` `trees` `*1300` | Mar/01/2018 15:05 | 
440 | [A - Mahmoud and Ehab and the MEX](https://codeforces.com/contest/862/problem/A) | [GNU C++14](./codeforces/862/A.cpp) | `greedy` `implementation` `*1000` | Mar/01/2018 14:43 | 
439 | [B - Marvolo Gaunt's Ring](https://codeforces.com/contest/855/problem/B) | [GNU C++14](./codeforces/855/B.cpp) | `brute force` `data structures` `dp` `*1500` | Mar/01/2018 14:01 | 
438 | [A - Tom Riddle's Diary](https://codeforces.com/contest/855/problem/A) | [GNU C++14](./codeforces/855/A.cpp) | `brute force` `implementation` `strings` `*800` | Mar/01/2018 13:52 | 
437 | [E - Fire](https://codeforces.com/contest/864/problem/E) | [GNU C++14](./codeforces/864/E.cpp) | `dp` `sortings` `*2000` | Mar/01/2018 03:54 | 
436 | [C - Bus](https://codeforces.com/contest/864/problem/C) | [GNU C++14](./codeforces/864/C.cpp) | `greedy` `implementation` `math` `*1500` | Mar/01/2018 03:22 | 
435 | [D - Make a Permutation!](https://codeforces.com/contest/864/problem/D) | [GNU C++14](./codeforces/864/D.cpp) | `greedy` `implementation` `math` `*1500` | Mar/01/2018 03:02 | 
434 | [B - Polycarp and Letters](https://codeforces.com/contest/864/problem/B) | [GNU C++14](./codeforces/864/B.cpp) | `brute force` `implementation` `strings` `*1000` | Mar/01/2018 02:47 | 
433 | [A - Fair Game](https://codeforces.com/contest/864/problem/A) | [GNU C++14](./codeforces/864/A.cpp) | `implementation` `sortings` `*1000` | Mar/01/2018 02:41 | 
432 | [C - Nephren gives a riddle](https://codeforces.com/contest/897/problem/C) | [GNU C++14](./codeforces/897/C.cpp) | `binary search` `combinatorics` `math` `*1700` | Feb/28/2018 22:26 | 
431 | [B - Chtholly's request](https://codeforces.com/contest/897/problem/B) | [GNU C++14](./codeforces/897/B.cpp) | `brute force` `*1300` | Feb/28/2018 21:47 | 
430 | [A - Scarborough Fair](https://codeforces.com/contest/897/problem/A) | [GNU C++14](./codeforces/897/A.cpp) | `implementation` `*800` | Feb/28/2018 21:32 | 
429 | [C - Marco and GCD Sequence](https://codeforces.com/contest/894/problem/C) | [GNU C++14](./codeforces/894/C.cpp) | `constructive algorithms` `math` `*1900` | Feb/28/2018 15:21 | 
428 | [B - Ralph And His Magic Field](https://codeforces.com/contest/894/problem/B) | [GNU C++14](./codeforces/894/B.cpp) | `combinatorics` `constructive algorithms` `math` `number theory` `*1800` | Feb/28/2018 15:14 | 
427 | [A - QAQ](https://codeforces.com/contest/894/problem/A) | [GNU C++14](./codeforces/894/A.cpp) | `brute force` `dp` `*800` | Feb/28/2018 14:59 | 
426 | [D - Sorting the Coins](https://codeforces.com/contest/876/problem/D) | [GNU C++14](./codeforces/876/D.cpp) | `dsu` `implementation` `sortings` `trees` `two pointers` `*1500` | Feb/28/2018 14:33 | 
425 | [B - Divisiblity of Differences](https://codeforces.com/contest/876/problem/B) | [GNU C++14](./codeforces/876/B.cpp) | `implementation` `math` `number theory` `*1300` | Feb/28/2018 14:06 | 
424 | [A - Trip For Meal](https://codeforces.com/contest/876/problem/A) | [GNU C++14](./codeforces/876/A.cpp) | `math` `*900` | Feb/28/2018 13:49 | 
423 | [C - Classroom Watch](https://codeforces.com/contest/876/problem/C) | [GNU C++14](./codeforces/876/C.cpp) | `brute force` `math` `*1200` | Feb/28/2018 13:41 | 
422 | [D - Innokenty and a Football League](https://codeforces.com/contest/782/problem/D) | [GNU C++14](./codeforces/782/D.cpp) | `graphs` `greedy` `shortest paths` `strings` `*1900` | Feb/27/2018 18:22 | 
421 | [C - Andryusha and Colored Balloons](https://codeforces.com/contest/782/problem/C) | [GNU C++14](./codeforces/782/C.cpp) | `dfs and similar` `graphs` `greedy` `trees` `*1600` | Feb/27/2018 17:45 | 
420 | [B - The Meeting Place Cannot Be Changed](https://codeforces.com/contest/782/problem/B) | [GNU C++14](./codeforces/782/B.cpp) | `binary search` `ternary search` `*1600` | Feb/27/2018 17:00 | 
419 | [A - Andryusha and Socks](https://codeforces.com/contest/782/problem/A) | [GNU C++14](./codeforces/782/A.cpp) | `implementation` `*800` | Feb/27/2018 16:31 | 
418 | [C - Maximum splitting](https://codeforces.com/contest/872/problem/C) | [GNU C++14](./codeforces/872/C.cpp) | `dp` `greedy` `math` `number theory` `*1300` | Feb/27/2018 16:09 | 
417 | [B - Maximum of Maximums of Minimums](https://codeforces.com/contest/872/problem/B) | [GNU C++14](./codeforces/872/B.cpp) | `implementation` `*1200` | Feb/27/2018 15:51 | 
416 | [A - Search for Pretty Integers](https://codeforces.com/contest/872/problem/A) | [GNU C++14](./codeforces/872/A.cpp) | `implementation` `*900` | Feb/27/2018 15:39 | 
415 | [E - Cashback](https://codeforces.com/contest/940/problem/E) | [GNU C++14](./codeforces/940/E.cpp) | `data structures` `dp` `greedy` `math` `*2000` | Feb/27/2018 13:58 | 
414 | [C - Phone Numbers](https://codeforces.com/contest/940/problem/C) | [GNU C++14](./codeforces/940/C.cpp) | `constructive algorithms` `implementation` `strings` `*1500` | Feb/27/2018 13:25 | 
413 | [D - Alena And The Heater](https://codeforces.com/contest/940/problem/D) | [GNU C++14](./codeforces/940/D.cpp) | `binary search` `implementation` `*1600` | Feb/27/2018 13:03 | 
412 | [B - Our Tanya is Crying Out Loud](https://codeforces.com/contest/940/problem/B) | [GNU C++14](./codeforces/940/B.cpp) | `dp` `greedy` `*1400` | Feb/27/2018 12:32 | 
411 | [A - Points on the line](https://codeforces.com/contest/940/problem/A) | [GNU C++14](./codeforces/940/A.cpp) | `brute force` `greedy` `sortings` `*1200` | Feb/27/2018 12:22 | 
410 | [B - Sleepy Game](https://codeforces.com/contest/936/problem/B) | [GNU C++14](./codeforces/936/B.cpp) | `dfs and similar` `dp` `games` `graphs` `*2100` | Feb/27/2018 00:32 | 
409 | [C - Save Energy!](https://codeforces.com/contest/937/problem/C) | [GNU C++14](./codeforces/937/C.cpp) | `math` `*1700` | Feb/26/2018 16:43 | 
408 | [B - Vile Grasshoppers](https://codeforces.com/contest/937/problem/B) | [GNU C++14](./codeforces/937/B.cpp) | `brute force` `math` `number theory` `*1400` | Feb/26/2018 15:40 | 
407 | [A - Olympiad](https://codeforces.com/contest/937/problem/A) | [GNU C++14](./codeforces/937/A.cpp) | `implementation` `sortings` `*800` | Feb/26/2018 14:59 | 
406 | [B - Sagheer, the Hausmeister](https://codeforces.com/contest/812/problem/B) | [GNU C++14](./codeforces/812/B.cpp) | `bitmasks` `brute force` `dp` `*1600` | Feb/23/2018 01:11 | 
405 | [C - Sagheer and Nubian Market](https://codeforces.com/contest/812/problem/C) | [GNU C++14](./codeforces/812/C.cpp) | `binary search` `sortings` `*1500` | Feb/23/2018 00:27 | 
404 | [A - Sagheer and Crossroads](https://codeforces.com/contest/812/problem/A) | [GNU C++14](./codeforces/812/A.cpp) | `implementation` `*1200` | Feb/22/2018 23:59 | 
403 | [B - Equation](https://codeforces.com/contest/20/problem/B) | [GNU C++14](./codeforces/20/B.cpp) | `math` `*2000` | Feb/22/2018 23:37 | 
402 | [D - Restoration of string](https://codeforces.com/contest/890/problem/D) | [GNU C++14](./codeforces/890/D.cpp) | `graphs` `greedy` `strings` `*2000` | Feb/22/2018 18:38 | 
401 | [B - Petya and Exam](https://codeforces.com/contest/832/problem/B) | [GNU C++14](./codeforces/832/B.cpp) | `implementation` `strings` `*1600` | Feb/22/2018 16:53 | 
400 | [A - Sasha and Sticks](https://codeforces.com/contest/832/problem/A) | [GNU C++14](./codeforces/832/A.cpp) | `games` `math` `*800` | Feb/22/2018 16:05 | 
399 | [C - Okabe and Boxes](https://codeforces.com/contest/821/problem/C) | [GNU C++14](./codeforces/821/C.cpp) | `data structures` `greedy` `trees` `*1500` | Feb/22/2018 15:21 | 
398 | [B - Okabe and Banana Trees](https://codeforces.com/contest/821/problem/B) | [GNU C++14](./codeforces/821/B.cpp) | `brute force` `math` `*1300` | Feb/22/2018 14:38 | 
397 | [A - Okabe and Future Gadget Laboratory](https://codeforces.com/contest/821/problem/A) | [GNU C++14](./codeforces/821/A.cpp) | `implementation` `*800` | Feb/22/2018 14:21 | 
396 | [A - Difference Row](https://codeforces.com/contest/347/problem/A) | [GNU C++14](./codeforces/347/A.cpp) | `constructive algorithms` `implementation` `sortings` `*1300` | Feb/22/2018 03:31 | 
395 | [D - Number of Parallelograms](https://codeforces.com/contest/660/problem/D) | [GNU C++14](./codeforces/660/D.cpp) | `geometry` `*1900` | Feb/21/2018 22:34 | 
394 | [D - Fix a Tree](https://codeforces.com/contest/699/problem/D) | [GNU C++14](./codeforces/699/D.cpp) | `constructive algorithms` `dfs and similar` `dsu` `graphs` `trees` `*1700` | Feb/21/2018 22:24 | 
393 | [C - Vacations](https://codeforces.com/contest/699/problem/C) | [GNU C++14](./codeforces/699/C.cpp) | `brute force` `dp` `*1400` | Feb/21/2018 18:10 | 
392 | [B - One Bomb](https://codeforces.com/contest/699/problem/B) | [GNU C++14](./codeforces/699/B.cpp) | `implementation` `*1400` | Feb/21/2018 17:55 | 
391 | [A - Launch of Collider](https://codeforces.com/contest/699/problem/A) | [GNU C++14](./codeforces/699/A.cpp) | `implementation` `*1000` | Feb/21/2018 17:39 | 
390 | [A - Arrays](https://codeforces.com/contest/572/problem/A) | [GNU C++14](./codeforces/572/A.cpp) | `sortings` `*900` | Feb/21/2018 17:16 | 
389 | [F - Divisibility](https://codeforces.com/contest/922/problem/F) | [GNU C++14](./codeforces/922/F.cpp) | `constructive algorithms` `dp` `greedy` `number theory` `*2400` | Feb/20/2018 18:52 | 
388 | [D - Fafa and Ancient Alphabet](https://codeforces.com/contest/935/problem/D) | [GNU C++14](./codeforces/935/D.cpp) | `math` `probabilities` `*1900` | Feb/20/2018 16:42 | 
387 | [C - Fifa and Fafa](https://codeforces.com/contest/935/problem/C) | [GNU C++14](./codeforces/935/C.cpp) | `geometry` `*1600` | Feb/20/2018 15:34 | 
386 | [B - Fafa and the Gates](https://codeforces.com/contest/935/problem/B) | [GNU C++14](./codeforces/935/B.cpp) | `implementation` `*900` | Feb/20/2018 15:28 | 
385 | [A - Fafa and his Company](https://codeforces.com/contest/935/problem/A) | [GNU C++14](./codeforces/935/A.cpp) | `brute force` `implementation` `*800` | Feb/20/2018 15:27 | 
384 | [C - Remove Extra One](https://codeforces.com/contest/900/problem/C) | [GNU C++14](./codeforces/900/C.cpp) | `brute force` `data structures` `math` `*1700` | Feb/19/2018 00:15 | 
383 | [B - Lucky Transformation](https://codeforces.com/contest/121/problem/B) | [GNU C++14](./codeforces/121/B.cpp) | `strings` `*1500` | Feb/18/2018 20:01 | 
382 | [A - Lucky Sum](https://codeforces.com/contest/121/problem/A) | [GNU C++14](./codeforces/121/A.cpp) | `implementation` `*1100` | Feb/18/2018 19:36 | 
381 | [E - Maximize!](https://codeforces.com/contest/939/problem/E) | [GNU C++14](./codeforces/939/E.cpp) | `binary search` `greedy` `ternary search` `two pointers` `*1800` | Feb/18/2018 14:33 | 
380 | [D - Buy a Ticket](https://codeforces.com/contest/938/problem/D) | [GNU C++14](./codeforces/938/D.cpp) | `data structures` `graphs` `shortest paths` `*2000` | Feb/17/2018 22:07 | 
379 | [D - Love Rescue](https://codeforces.com/contest/939/problem/D) | [GNU C++14](./codeforces/939/D.cpp) | `dfs and similar` `dsu` `graphs` `greedy` `strings` `*1600` | Feb/17/2018 21:08 | 
378 | [C - Convenient For Everybody](https://codeforces.com/contest/939/problem/C) | [GNU C++14](./codeforces/939/C.cpp) | `binary search` `two pointers` `*1600` | Feb/17/2018 17:59 | 
377 | [B - Hamster Farm](https://codeforces.com/contest/939/problem/B) | [GNU C++14](./codeforces/939/B.cpp) | `implementation` `*1000` | Feb/17/2018 16:17 | 
376 | [A - Love Triangle](https://codeforces.com/contest/939/problem/A) | [GNU C++14](./codeforces/939/A.cpp) | `graphs` `*800` | Feb/17/2018 16:08 | 
375 | [C - Constructing Tests](https://codeforces.com/contest/938/problem/C) | [GNU C++14](./codeforces/938/C.cpp) | `binary search` `brute force` `constructive algorithms` `*1700` | Feb/17/2018 14:25 | 
374 | [B - Run For Your Prize](https://codeforces.com/contest/938/problem/B) | [GNU C++14](./codeforces/938/B.cpp) | `brute force` `greedy` `*1100` | Feb/17/2018 14:15 | 
373 | [A - Word Correction](https://codeforces.com/contest/938/problem/A) | [GNU C++14](./codeforces/938/A.cpp) | `implementation` `*800` | Feb/17/2018 14:14 | 
372 | [C - Permutation Cycle](https://codeforces.com/contest/932/problem/C) | [GNU C++14](./codeforces/932/C.cpp) | `brute force` `constructive algorithms` `*1600` | Feb/16/2018 00:40 | 
371 | [B - Recursive Queries](https://codeforces.com/contest/932/problem/B) | [GNU C++14](./codeforces/932/B.cpp) | `binary search` `data structures` `dfs and similar` `*1300` | Feb/15/2018 20:49 | 
370 | [A - Palindromic Supersequence](https://codeforces.com/contest/932/problem/A) | [GNU C++14](./codeforces/932/A.cpp) | `constructive algorithms` `*800` | Feb/15/2018 20:37 | 
369 | [D - Imbalanced Array](https://codeforces.com/contest/817/problem/D) | [GNU C++14](./codeforces/817/D.cpp) | `data structures` `divide and conquer` `dsu` `sortings` `*1900` | Feb/15/2018 16:31 | 
368 | [C - Really Big Numbers](https://codeforces.com/contest/817/problem/C) | [GNU C++14](./codeforces/817/C.cpp) | `binary search` `brute force` `dp` `math` `*1600` | Feb/15/2018 15:41 | 
367 | [B - Makes And The Product](https://codeforces.com/contest/817/problem/B) | [GNU C++14](./codeforces/817/B.cpp) | `combinatorics` `implementation` `math` `sortings` `*1500` | Feb/15/2018 15:32 | 
366 | [A - Treasure Hunt](https://codeforces.com/contest/817/problem/A) | [GNU C++14](./codeforces/817/A.cpp) | `implementation` `math` `number theory` `*1200` | Feb/15/2018 15:20 | 
365 | [D - Vanya and Triangles](https://codeforces.com/contest/552/problem/D) | [GNU C++14](./codeforces/552/D.cpp) | `brute force` `combinatorics` `data structures` `geometry` `math` `sortings` `*1900` | Feb/15/2018 15:08 | 
364 | [C - Heap Operations](https://codeforces.com/contest/681/problem/C) | [GNU C++14](./codeforces/681/C.cpp) | `constructive algorithms` `data structures` `greedy` `*1600` | Feb/15/2018 14:54 | 
363 | [B - A Determined Cleanup](https://codeforces.com/contest/933/problem/B) | [GNU C++14](./codeforces/933/B.cpp) | `math` `*2000` | Feb/15/2018 14:41 | 
362 | [A - A Twisty Movement](https://codeforces.com/contest/933/problem/A) | [GNU C++14](./codeforces/933/A.cpp) | `dp` `*1800` | Feb/14/2018 21:07 | 
361 | [B - A Prosperous Lot](https://codeforces.com/contest/934/problem/B) | [GNU C++14](./codeforces/934/B.cpp) | `constructive algorithms` `implementation` `*1200` | Feb/14/2018 19:01 | 
360 | [A - A Compatible Pair](https://codeforces.com/contest/934/problem/A) | [GNU C++14](./codeforces/934/A.cpp) | `brute force` `games` `*1400` | Feb/14/2018 18:20 | 
359 | [E - XOR on Segment](https://codeforces.com/contest/242/problem/E) | [GNU C++14](./codeforces/242/E.cpp) | `bitmasks` `data structures` `*2000` | Feb/12/2018 06:26 | 
358 | [B - Interesting Array](https://codeforces.com/contest/482/problem/B) | [GNU C++14](./codeforces/482/B.cpp) | `constructive algorithms` `data structures` `trees` `*1800` | Feb/12/2018 05:47 | 
357 | [E - Copying Data](https://codeforces.com/contest/292/problem/E) | [GNU C++14](./codeforces/292/E.cpp) | `data structures` `*1900` | Feb/12/2018 04:39 | 
356 | [E - A Simple Task](https://codeforces.com/contest/558/problem/E) | [GNU C++14](./codeforces/558/E.cpp) | `data structures` `sortings` `strings` `*2300` | Feb/12/2018 01:29 | 
355 | [E - Lucky Queries](https://codeforces.com/contest/145/problem/E) | [GNU C++14](./codeforces/145/E.cpp) | `data structures` `*2400` | Feb/11/2018 23:42 | 
354 | [F - Ant colony](https://codeforces.com/contest/474/problem/F) | [GNU C++14](./codeforces/474/F.cpp) | `data structures` `math` `number theory` `*2100` | Feb/11/2018 01:39 | 
353 | [A - Knight Tournament](https://codeforces.com/contest/356/problem/A) | [GNU C++14](./codeforces/356/A.cpp) | `data structures` `dsu` `*1500` | Feb/11/2018 00:13 | 
352 | [D - Xenia and Bit Operations](https://codeforces.com/contest/339/problem/D) | [GNU C++14](./codeforces/339/D.cpp) | `data structures` `trees` `*1700` | Feb/11/2018 00:01 | 
351 | [A - NP-Hard Problem](https://codeforces.com/contest/687/problem/A) | [GNU C++14](./codeforces/687/A.cpp) | `dfs and similar` `graphs` `*1500` | Feb/10/2018 15:34 | 
350 | [C - Sereja and Brackets](https://codeforces.com/contest/380/problem/C) | [GNU C++14](./codeforces/380/C.cpp) | `data structures` `schedules` `*2000` | Feb/10/2018 03:21 | 
349 | [C - The Brand New Function](https://codeforces.com/contest/244/problem/C) | [GNU C++14](./codeforces/244/C.cpp) | `bitmasks` `divide and conquer` `math` `*1600` | Feb/10/2018 02:17 | 
348 | [B - Undoubtedly Lucky Numbers](https://codeforces.com/contest/244/problem/B) | [GNU C++14](./codeforces/244/B.cpp) | `bitmasks` `brute force` `dfs and similar` `*1600` | Feb/09/2018 15:30 | 
347 | [A - Mike and Fax](https://codeforces.com/contest/548/problem/A) | [GNU C++14](./codeforces/548/A.cpp) | `brute force` `implementation` `strings` `*1100` | Feb/08/2018 19:42 | 
346 | [D - Robot Vacuum Cleaner](https://codeforces.com/contest/922/problem/D) | [GNU C++14](./codeforces/922/D.cpp) | `greedy` `sortings` `*1800` | Feb/08/2018 03:11 | 
345 | [C - Cave Painting](https://codeforces.com/contest/922/problem/C) | [GNU C++14](./codeforces/922/C.cpp) | `brute force` `number theory` `*1600` | Feb/08/2018 02:52 | 
344 | [A - Cloning Toys](https://codeforces.com/contest/922/problem/A) | [GNU C++14](./codeforces/922/A.cpp) | `implementation` `*1300` | Feb/08/2018 02:50 | 
343 | [B - Magic Forest](https://codeforces.com/contest/922/problem/B) | [GNU C++14](./codeforces/922/B.cpp) | `brute force` `*1300` | Feb/08/2018 02:50 | 
342 | [C - Arthur and Table](https://codeforces.com/contest/557/problem/C) | [GNU C++14](./codeforces/557/C.cpp) | `brute force` `data structures` `dp` `greedy` `math` `sortings` `*1900` | Feb/07/2018 20:01 | 
341 | [B - Little Elephant and Array](https://codeforces.com/contest/220/problem/B) | [GNU C++14](./codeforces/220/B.cpp) | `constructive algorithms` `data structures` `*1800` | Feb/07/2018 02:07 | 
340 | [C - Present](https://codeforces.com/contest/460/problem/C) | [GNU C++14](./codeforces/460/C.cpp) | `binary search` `data structures` `greedy` `*1700` | Feb/07/2018 01:17 | 
339 | [C - Hidden Word](https://codeforces.com/contest/725/problem/C) | [GNU C++14](./codeforces/725/C.cpp) | `brute force` `constructive algorithms` `implementation` `strings` `*1600` | Feb/06/2018 23:44 | 
338 | [E - Prime Gift](https://codeforces.com/contest/912/problem/E) | [GNU C++14](./codeforces/912/E.cpp) | `binary search` `dfs and similar` `math` `meet-in-the-middle` `number theory` `two pointers` `*2400` | Feb/06/2018 20:25 | 
337 | [B - Perfect Number](https://codeforces.com/contest/919/problem/B) | [GNU C++14](./codeforces/919/B.cpp) | `binary search` `brute force` `dp` `implementation` `number theory` `*1100` | Jan/31/2018 19:14 | 
336 | [B - MADMAX](https://codeforces.com/contest/917/problem/B) | [GNU C++14](./codeforces/917/B.cpp) | `dfs and similar` `dp` `games` `graphs` `*1700` | Jan/29/2018 23:56 | 
335 | [A - The Monster](https://codeforces.com/contest/917/problem/A) | [GNU C++14](./codeforces/917/A.cpp) | `dp` `greedy` `implementation` `math` `*1800` | Jan/29/2018 23:55 | 
334 | [B - Radio Station](https://codeforces.com/contest/918/problem/B) | [GNU C++14](./codeforces/918/B.cpp) | `implementation` `strings` `*900` | Jan/29/2018 20:49 | 
333 | [A - Eleven](https://codeforces.com/contest/918/problem/A) | [GNU C++14](./codeforces/918/A.cpp) | `brute force` `implementation` `*800` | Jan/29/2018 20:40 | 
332 | [D - Palindromic characteristics](https://codeforces.com/contest/835/problem/D) | [GNU C++14](./codeforces/835/D.cpp) | `brute force` `dp` `hashing` `strings` `*1900` | Jan/27/2018 19:07 | 
331 | [F - String Compression](https://codeforces.com/contest/825/problem/F) | [GNU C++14](./codeforces/825/F.cpp) | `dp` `hashing` `string suffix structures` `strings` `*2400` | Jan/27/2018 17:57 | 
330 | [D - Santa Claus and a Palindrome](https://codeforces.com/contest/752/problem/D) | [GNU C++14](./codeforces/752/D.cpp) | `data structures` `greedy` `hashing` `strings` `*2100` | Jan/27/2018 05:06 | 
329 | [E - Games on a CD](https://codeforces.com/contest/727/problem/E) | [GNU C++14](./codeforces/727/E.cpp) | `data structures` `hashing` `string suffix structures` `strings` `*2300` | Jan/27/2018 04:19 | 
328 | [B - Password](https://codeforces.com/contest/126/problem/B) | [GNU C++14](./codeforces/126/B.cpp) | `binary search` `dp` `hashing` `string suffix structures` `strings` `*1700` | Jan/27/2018 01:44 | 
327 | [C - Double Profiles](https://codeforces.com/contest/154/problem/C) | [GNU C++14](./codeforces/154/C.cpp) | `graphs` `hashing` `sortings` `*2300` | Jan/27/2018 00:23 | 
326 | [C - Success Rate](https://codeforces.com/contest/807/problem/C) | [GNU C++14](./codeforces/807/C.cpp) | `binary search` `math` `*1700` | Jan/26/2018 17:45 | 
325 | [B - Sherlock and his girlfriend](https://codeforces.com/contest/776/problem/B) | [GNU C++14](./codeforces/776/B.cpp) | `constructive algorithms` `number theory` `*1200` | Jan/25/2018 23:40 | 
324 | [B - Trees in a Row](https://codeforces.com/contest/402/problem/B) | [GNU C++14](./codeforces/402/B.cpp) | `brute force` `implementation` `*1400` | Jan/25/2018 23:38 | 
323 | [B - Two Heaps](https://codeforces.com/contest/353/problem/B) | [GNU C++14](./codeforces/353/B.cpp) | `combinatorics` `constructive algorithms` `greedy` `implementation` `math` `sortings` `*1900` | Jan/25/2018 23:36 | 
322 | [A - Rounding](https://codeforces.com/contest/898/problem/A) | [GNU C++14](./codeforces/898/A.cpp) | `implementation` `math` `*800` | Jan/25/2018 20:49 | 
321 | [B - Jamie and Binary Sequence (changed after round)](https://codeforces.com/contest/916/problem/B) | [GNU C++14](./codeforces/916/B.cpp) | `bitmasks` `greedy` `math` `*2000` | Jan/25/2018 14:31 | 
320 | [D - Bash and a Tough Math Puzzle](https://codeforces.com/contest/914/problem/D) | [GNU C++14](./codeforces/914/D.cpp) | `data structures` `number theory` `*1900` | Jan/25/2018 03:18 | 
319 | [C - Travelling Salesman and Special Numbers](https://codeforces.com/contest/914/problem/C) | [GNU C++14](./codeforces/914/C.cpp) | `brute force` `combinatorics` `dp` `*1800` | Jan/25/2018 01:55 | 
318 | [B - XK Segments](https://codeforces.com/contest/895/problem/B) | [GNU C++14](./codeforces/895/B.cpp) | `binary search` `math` `sortings` `two pointers` `*1700` | Jan/24/2018 22:53 | 
317 | [E - Correct Bracket Sequence Editor](https://codeforces.com/contest/670/problem/E) | [GNU C++14](./codeforces/670/E.cpp) | `data structures` `dsu` `strings` `*1700` | Jan/24/2018 17:22 | 
316 | [F - Restoring the Expression](https://codeforces.com/contest/898/problem/F) | [GNU C++14](./codeforces/898/F.cpp) | `brute force` `hashing` `math` `*2300` | Jan/24/2018 16:30 | 
315 | [D - New Year and Arbitrary Arrangement](https://codeforces.com/contest/908/problem/D) | [GNU C++14](./codeforces/908/D.cpp) | `dp` `math` `probabilities` `*2200` | Jan/24/2018 05:10 | 
314 | [D - Dreamoon and Sets](https://codeforces.com/contest/476/problem/D) | [GNU C++14](./codeforces/476/D.cpp) | `constructive algorithms` `greedy` `math` `*1900` | Jan/22/2018 03:45 | 
313 | [C - Dreamoon and Sums](https://codeforces.com/contest/476/problem/C) | [GNU C++14](./codeforces/476/C.cpp) | `math` `*1600` | Jan/22/2018 02:33 | 
312 | [A - 123-sequence](https://codeforces.com/contest/52/problem/A) | [GNU C++14](./codeforces/52/A.cpp) | `implementation` `*900` | Jan/21/2018 17:06 | 
311 | [C - Mike and gcd problem](https://codeforces.com/contest/798/problem/C) | [GNU C++14](./codeforces/798/C.cpp) | `dp` `greedy` `number theory` `*1700` | Jan/21/2018 13:36 | 
310 | [B - Conan and Agasa play a Card Game](https://codeforces.com/contest/914/problem/B) | [GNU C++14](./codeforces/914/B.cpp) | `games` `greedy` `implementation` `*1200` | Jan/21/2018 03:12 | 
309 | [A - Perfect Squares](https://codeforces.com/contest/914/problem/A) | [GNU C++14](./codeforces/914/A.cpp) | `brute force` `implementation` `math` `*900` | Jan/20/2018 21:38 | 
308 | [C - Star sky](https://codeforces.com/contest/835/problem/C) | [GNU C++14](./codeforces/835/C.cpp) | `dp` `implementation` `*1600` | Jan/20/2018 21:22 | 
307 | [B - The number on the board](https://codeforces.com/contest/835/problem/B) | [GNU C++14](./codeforces/835/B.cpp) | `greedy` `*1100` | Jan/20/2018 20:35 | 
306 | [A - Key races](https://codeforces.com/contest/835/problem/A) | [GNU C++14](./codeforces/835/A.cpp) | `math` `*800` | Jan/20/2018 20:22 | 
305 | [C - Jamie and Interesting Graph](https://codeforces.com/contest/916/problem/C) | [GNU C++14](./codeforces/916/C.cpp) | `constructive algorithms` `graphs` `shortest paths` `*1600` | Jan/20/2018 01:31 | 
304 | [A - Jamie and Alarm Snooze](https://codeforces.com/contest/916/problem/A) | [GNU C++14](./codeforces/916/A.cpp) | `brute force` `implementation` `math` `*900` | Jan/19/2018 20:45 | 
303 | [B - Position in Fraction](https://codeforces.com/contest/900/problem/B) | [GNU C++14](./codeforces/900/B.cpp) | `math` `number theory` `*1300` | Jan/19/2018 19:07 | 
302 | [A - Find Extra One](https://codeforces.com/contest/900/problem/A) | [GNU C++14](./codeforces/900/A.cpp) | `geometry` `implementation` `*800` | Jan/19/2018 18:38 | 
301 | [E - Physical Education Lessons](https://codeforces.com/contest/915/problem/E) | [GNU C++14](./codeforces/915/E.cpp) | `data structures` `implementation` `sortings` `*2300` | Jan/19/2018 18:09 | 
300 | [D - Almost Acyclic Graph](https://codeforces.com/contest/915/problem/D) | [GNU C++14](./codeforces/915/D.cpp) | `dfs and similar` `graphs` `*2200` | Jan/19/2018 00:48 | 
299 | [C - Permute Digits](https://codeforces.com/contest/915/problem/C) | [GNU C++14](./codeforces/915/C.cpp) | `dp` `greedy` `*1700` | Jan/18/2018 23:45 | 
298 | [B - Browser](https://codeforces.com/contest/915/problem/B) | [GNU C++14](./codeforces/915/B.cpp) | `implementation` `*1300` | Jan/18/2018 22:36 | 
297 | [A - Garden](https://codeforces.com/contest/915/problem/A) | [GNU C++14](./codeforces/915/A.cpp) | `implementation` `*900` | Jan/18/2018 22:17 | 
296 | [K - Indivisibility](https://codeforces.com/contest/630/problem/K) | [GNU C++14](./codeforces/630/K.cpp) | `math` `number theory` `*1500` | Jan/12/2018 04:38 | 
295 | [P - Area of a Star](https://codeforces.com/contest/630/problem/P) | [GNU C++14](./codeforces/630/P.cpp) | `geometry` `*2100` | Jan/12/2018 03:56 | 
294 | [C - Lucky Numbers](https://codeforces.com/contest/630/problem/C) | [GNU C++14](./codeforces/630/C.cpp) | `combinatorics` `math` `*1100` | Jan/12/2018 02:08 | 
293 | [C - The Child and Toy](https://codeforces.com/contest/437/problem/C) | [GNU C++14](./codeforces/437/C.cpp) | `graphs` `greedy` `sortings` `*1400` | Jan/12/2018 01:25 | 
292 | [B - Andrey and Problem](https://codeforces.com/contest/442/problem/B) | [GNU C++14](./codeforces/442/B.cpp) | `greedy` `math` `probabilities` `*1800` | Jan/11/2018 17:32 | 
291 | [C - Journey](https://codeforces.com/contest/839/problem/C) | [GNU C++14](./codeforces/839/C.cpp) | `dfs and similar` `dp` `graphs` `probabilities` `trees` `*1500` | Jan/11/2018 03:37 | 
290 | [B - Dreamoon and WiFi](https://codeforces.com/contest/476/problem/B) | [GNU C++14](./codeforces/476/B.cpp) | `bitmasks` `brute force` `combinatorics` `dp` `math` `probabilities` `*1300` | Jan/11/2018 02:23 | 
289 | [C - Wet Shark and Flowers](https://codeforces.com/contest/621/problem/C) | [GNU C++14](./codeforces/621/C.cpp) | `combinatorics` `math` `number theory` `probabilities` `*1700` | Jan/11/2018 01:31 | 
288 | [A - Little Pony and Expected Maximum](https://codeforces.com/contest/453/problem/A) | [GNU C++14](./codeforces/453/A.cpp) | `probabilities` `*1600` | Jan/10/2018 22:51 | 
287 | [B - Archer](https://codeforces.com/contest/312/problem/B) | [GNU C++14](./codeforces/312/B.cpp) | `math` `probabilities` `*1300` | Jan/10/2018 21:55 | 
286 | [A - Die Roll](https://codeforces.com/contest/9/problem/A) | [GNU C++14](./codeforces/9/A.cpp) | `math` `probabilities` `*800` | Jan/10/2018 21:25 | 
285 | [A - Jzzhu and Chocolate](https://codeforces.com/contest/449/problem/A) | [GNU C++14](./codeforces/449/A.cpp) | `greedy` `math` `*1700` | Jan/10/2018 02:39 | 
284 | [A - Numbers](https://codeforces.com/contest/13/problem/A) | [GNU C++14](./codeforces/13/A.cpp) | `implementation` `math` `*1000` | Jan/10/2018 01:48 | 
283 | [A - Train and Peter](https://codeforces.com/contest/8/problem/A) | [GNU C++14](./codeforces/8/A.cpp) | `strings` `*1200` | Jan/09/2018 21:14 | 
282 | [B - Help Kingdom of Far Far Away 2](https://codeforces.com/contest/143/problem/B) | [GNU C++14](./codeforces/143/B.cpp) | `implementation` `strings` `*1200` | Jan/09/2018 20:36 | 
281 | [B - New Problem](https://codeforces.com/contest/278/problem/B) | [GNU C++14](./codeforces/278/B.cpp) | `brute force` `strings` `*1500` | Jan/09/2018 19:13 | 
280 | [C - Anagram Search](https://codeforces.com/contest/144/problem/C) | [GNU C++14](./codeforces/144/C.cpp) | `implementation` `strings` `*1500` | Jan/09/2018 18:29 | 
279 | [B - African Crossword](https://codeforces.com/contest/90/problem/B) | [GNU C++14](./codeforces/90/B.cpp) | `implementation` `strings` `*1100` | Jan/09/2018 17:23 | 
278 | [D - Palindrome pairs](https://codeforces.com/contest/159/problem/D) | [GNU C++14](./codeforces/159/D.cpp) | `*special problem` `brute force` `dp` `strings` `*1500` | Jan/09/2018 16:46 | 
277 | [B - Dima and Text Messages](https://codeforces.com/contest/358/problem/B) | [GNU C++14](./codeforces/358/B.cpp) | `brute force` `strings` `*1500` | Jan/09/2018 15:09 | 
276 | [C - Ladder](https://codeforces.com/contest/279/problem/C) | [GNU C++14](./codeforces/279/C.cpp) | `dp` `implementation` `two pointers` `*1700` | Jan/08/2018 23:26 | 
275 | [C - Party Lemonade](https://codeforces.com/contest/913/problem/C) | [GNU C++14](./codeforces/913/C.cpp) | `bitmasks` `dp` `greedy` `*1600` | Jan/08/2018 21:56 | 
274 | [B - Christmas Spruce](https://codeforces.com/contest/913/problem/B) | [GNU C++14](./codeforces/913/B.cpp) | `implementation` `trees` `*1200` | Jan/08/2018 21:04 | 
273 | [A - Modular Exponentiation](https://codeforces.com/contest/913/problem/A) | [GNU C++14](./codeforces/913/A.cpp) | `implementation` `math` `*900` | Jan/08/2018 20:50 | 
272 | [C - Mahmoud and a Message](https://codeforces.com/contest/766/problem/C) | [GNU C++14](./codeforces/766/C.cpp) | `brute force` `dp` `greedy` `strings` `*1700` | Jan/08/2018 17:38 | 
271 | [D - Cloud of Hashtags](https://codeforces.com/contest/777/problem/D) | [GNU C++14](./codeforces/777/D.cpp) | `binary search` `greedy` `implementation` `strings` `*1800` | Jan/08/2018 16:39 | 
270 | [B - ZgukistringZ](https://codeforces.com/contest/551/problem/B) | [GNU C++14](./codeforces/551/B.cpp) | `brute force` `constructive algorithms` `implementation` `strings` `*1800` | Jan/08/2018 16:12 | 
269 | [B - Center Alignment](https://codeforces.com/contest/5/problem/B) | [GNU C++14](./codeforces/5/B.cpp) | `implementation` `strings` `*1200` | Jan/08/2018 02:36 | 
268 | [D - Good Substrings](https://codeforces.com/contest/271/problem/D) | [GNU C++14](./codeforces/271/D.cpp) | `data structures` `strings` `*1800` | Jan/08/2018 01:42 | 
267 | [B - Choosing Symbol Pairs](https://codeforces.com/contest/50/problem/B) | [GNU C++14](./codeforces/50/B.cpp) | `strings` `*1500` | Jan/08/2018 00:45 | 
266 | [C - The Smallest String Concatenation](https://codeforces.com/contest/632/problem/C) | [GNU C++14](./codeforces/632/C.cpp) | `sortings` `strings` `*1700` | Jan/08/2018 00:10 | 
265 | [B - Bear and Compressing](https://codeforces.com/contest/653/problem/B) | [GNU C++14](./codeforces/653/B.cpp) | `brute force` `dfs and similar` `dp` `strings` `*1300` | Jan/07/2018 17:38 | 
264 | [C - Phone Numbers](https://codeforces.com/contest/898/problem/C) | [GNU C++14](./codeforces/898/C.cpp) | `implementation` `strings` `*1400` | Jan/07/2018 16:49 | 
263 | [B - Phone Numbers](https://codeforces.com/contest/151/problem/B) | [GNU C++14](./codeforces/151/B.cpp) | `implementation` `strings` `*1200` | Jan/07/2018 16:00 | 
262 | [C - Longest Regular Bracket Sequence](https://codeforces.com/contest/5/problem/C) | [GNU C++14](./codeforces/5/C.cpp) | `constructive algorithms` `data structures` `dp` `greedy` `sortings` `strings` `*1900` | Jan/07/2018 03:16 | 
261 | [D - Common Divisors](https://codeforces.com/contest/182/problem/D) | [GNU C++14](./codeforces/182/D.cpp) | `brute force` `hashing` `implementation` `math` `strings` `*1400` | Jan/06/2018 16:15 | 
260 | [A - Help Far Away Kingdom](https://codeforces.com/contest/99/problem/A) | [GNU C++14](./codeforces/99/A.cpp) | `strings` `*800` | Jan/06/2018 15:25 | 
259 | [C - Simple Strings](https://codeforces.com/contest/665/problem/C) | [GNU C++14](./codeforces/665/C.cpp) | `dp` `greedy` `strings` `*1300` | Jan/06/2018 15:11 | 
258 | [C - DNA Alignment](https://codeforces.com/contest/520/problem/C) | [GNU C++14](./codeforces/520/C.cpp) | `math` `strings` `*1500` | Jan/06/2018 14:54 | 
257 | [A - Petya and Java](https://codeforces.com/contest/66/problem/A) | [GNU C++14](./codeforces/66/A.cpp) | `implementation` `strings` `*1300` | Jan/06/2018 02:25 | 
256 | [A - Alex and broken contest](https://codeforces.com/contest/877/problem/A) | [GNU C++14](./codeforces/877/A.cpp) | `implementation` `strings` `*1100` | Jan/06/2018 02:19 | 
255 | [B - Decoding](https://codeforces.com/contest/746/problem/B) | [GNU C++14](./codeforces/746/B.cpp) | `implementation` `strings` `*900` | Jan/06/2018 02:06 | 
254 | [A - k-String](https://codeforces.com/contest/219/problem/A) | [GNU C++14](./codeforces/219/A.cpp) | `implementation` `strings` `*1000` | Jan/06/2018 01:52 | 
253 | [B - Passwords](https://codeforces.com/contest/721/problem/B) | [GNU C++14](./codeforces/721/B.cpp) | `implementation` `math` `sortings` `strings` `*1100` | Jan/06/2018 01:36 | 
252 | [B - Different is Good](https://codeforces.com/contest/672/problem/B) | [GNU C++14](./codeforces/672/B.cpp) | `constructive algorithms` `implementation` `strings` `*1000` | Jan/06/2018 01:11 | 
251 | [A - Ostap and Grasshopper](https://codeforces.com/contest/735/problem/A) | [GNU C++14](./codeforces/735/A.cpp) | `implementation` `strings` `*800` | Jan/06/2018 01:03 | 
250 | [A - Football](https://codeforces.com/contest/43/problem/A) | [GNU C++14](./codeforces/43/A.cpp) | `strings` `*1000` | Jan/06/2018 00:49 | 
249 | [A - Mike and palindrome](https://codeforces.com/contest/798/problem/A) | [GNU C++14](./codeforces/798/A.cpp) | `brute force` `constructive algorithms` `strings` `*1000` | Jan/06/2018 00:44 | 
248 | [A - Mahmoud and Longest Uncommon Subsequence](https://codeforces.com/contest/766/problem/A) | [GNU C++14](./codeforces/766/A.cpp) | `constructive algorithms` `strings` `*1000` | Jan/06/2018 00:36 | 
247 | [B - New Year's Eve](https://codeforces.com/contest/912/problem/B) | [GNU C++14](./codeforces/912/B.cpp) | `bitmasks` `constructive algorithms` `number theory` `*1300` | Jan/06/2018 00:27 | 
246 | [A - Tricky Alchemy](https://codeforces.com/contest/912/problem/A) | [GNU C++14](./codeforces/912/A.cpp) | `implementation` `*800` | Jan/05/2018 20:45 | 
245 | [D - Restoring Numbers](https://codeforces.com/contest/509/problem/D) | [GNU C++14](./codeforces/509/D.cpp) | `constructive algorithms` `math` `*2200` | Jan/05/2018 19:13 | 
244 | [C - Palindrome Transformation](https://codeforces.com/contest/486/problem/C) | [GNU C++14](./codeforces/486/C.cpp) | `brute force` `greedy` `implementation` `*1700` | Jan/05/2018 18:31 | 
243 | [B - OR in Matrix](https://codeforces.com/contest/486/problem/B) | [GNU C++14](./codeforces/486/B.cpp) | `greedy` `hashing` `implementation` `*1300` | Jan/05/2018 18:26 | 
242 | [A - Vitaliy and Pie](https://codeforces.com/contest/525/problem/A) | [GNU C++14](./codeforces/525/A.cpp) | `greedy` `hashing` `strings` `*1100` | Jan/05/2018 18:04 | 
241 | [A - Winner](https://codeforces.com/contest/2/problem/A) | [GNU C++14](./codeforces/2/A.cpp) | `hashing` `implementation` `*1500` | Jan/05/2018 17:47 | 
240 | [B - Books](https://codeforces.com/contest/279/problem/B) | [GNU C++14](./codeforces/279/B.cpp) | `binary search` `brute force` `implementation` `two pointers` `*1400` | Jan/05/2018 16:23 | 
239 | [B - Easy Number Challenge](https://codeforces.com/contest/236/problem/B) | [GNU C++14](./codeforces/236/B.cpp) | `implementation` `number theory` `*1300` | Jan/05/2018 15:42 | 
238 | [C - LCM Challenge](https://codeforces.com/contest/236/problem/C) | [GNU C++14](./codeforces/236/C.cpp) | `greedy` `number theory` `*1600` | Jan/05/2018 15:23 | 
237 | [C - Replacement](https://codeforces.com/contest/570/problem/C) | [GNU C++14](./codeforces/570/C.cpp) | `constructive algorithms` `data structures` `implementation` `*1600` | Jan/04/2018 21:15 | 
236 | [A - Snacktower](https://codeforces.com/contest/767/problem/A) | [GNU C++14](./codeforces/767/A.cpp) | `data structures` `implementation` `*1100` | Jan/04/2018 16:21 | 
235 | [B - Misha and Changing Handles](https://codeforces.com/contest/501/problem/B) | [GNU C++14](./codeforces/501/B.cpp) | `data structures` `dsu` `strings` `*1100` | Jan/04/2018 16:00 | 
234 | [A - Watchmen](https://codeforces.com/contest/650/problem/A) | [GNU C++14](./codeforces/650/A.cpp) | `data structures` `geometry` `math` `*1400` | Jan/04/2018 15:38 | 
233 | [B - Prison Transfer](https://codeforces.com/contest/427/problem/B) | [GNU C++14](./codeforces/427/B.cpp) | `data structures` `implementation` `*1100` | Jan/04/2018 15:18 | 
232 | [B - Sereja and Suffixes](https://codeforces.com/contest/368/problem/B) | [GNU C++14](./codeforces/368/B.cpp) | `data structures` `dp` `*1100` | Jan/04/2018 14:58 | 
231 | [B - Find The Bone](https://codeforces.com/contest/796/problem/B) | [GNU C++14](./codeforces/796/B.cpp) | `implementation` `*1300` | Jan/04/2018 14:40 | 
230 | [A - Buying A House](https://codeforces.com/contest/796/problem/A) | [GNU C++14](./codeforces/796/A.cpp) | `brute force` `implementation` `*800` | Jan/04/2018 14:11 | 
229 | [A - Crazy Town](https://codeforces.com/contest/498/problem/A) | [GNU C++14](./codeforces/498/A.cpp) | `geometry` `*1700` | Jan/04/2018 00:01 | 
228 | [A - Pouring Rain](https://codeforces.com/contest/667/problem/A) | [GNU C++14](./codeforces/667/A.cpp) | `geometry` `math` `*1100` | Jan/03/2018 23:25 | 
227 | [A - Wasted Time](https://codeforces.com/contest/127/problem/A) | [GNU C++14](./codeforces/127/A.cpp) | `geometry` `*900` | Jan/03/2018 23:02 | 
226 | [B - Trace](https://codeforces.com/contest/157/problem/B) | [GNU C++14](./codeforces/157/B.cpp) | `geometry` `sortings` `*1000` | Jan/03/2018 22:52 | 
225 | [B - Parallelogram is Back](https://codeforces.com/contest/749/problem/B) | [GNU C++14](./codeforces/749/B.cpp) | `brute force` `constructive algorithms` `geometry` `*1200` | Jan/03/2018 18:15 | 
224 | [B - Gleb And Pizza](https://codeforces.com/contest/842/problem/B) | [GNU C++14](./codeforces/842/B.cpp) | `geometry` `*1100` | Jan/03/2018 17:53 | 
223 | [A - Gerald's Hexagon](https://codeforces.com/contest/559/problem/A) | [GNU C++14](./codeforces/559/A.cpp) | `brute force` `geometry` `math` `*1600` | Jan/03/2018 17:36 | 
222 | [A - Triangle](https://codeforces.com/contest/6/problem/A) | [GNU C++14](./codeforces/6/A.cpp) | `brute force` `geometry` `*900` | Jan/03/2018 17:11 | 
221 | [B - Han Solo and Lazer Gun](https://codeforces.com/contest/514/problem/B) | [GNU C++14](./codeforces/514/B.cpp) | `brute force` `data structures` `geometry` `implementation` `math` `*1400` | Jan/03/2018 16:54 | 
220 | [B - Amr and Pins](https://codeforces.com/contest/507/problem/B) | [GNU C++14](./codeforces/507/B.cpp) | `geometry` `math` `*1400` | Jan/03/2018 15:44 | 
219 | [A - Beru-taxi](https://codeforces.com/contest/706/problem/A) | [GNU C++14](./codeforces/706/A.cpp) | `brute force` `geometry` `implementation` `*900` | Jan/03/2018 15:35 | 
218 | [A - Alyona and Numbers](https://codeforces.com/contest/682/problem/A) | [GNU C++14](./codeforces/682/A.cpp) | `constructive algorithms` `math` `number theory` `*1100` | Jan/03/2018 02:11 | 
217 | [B - Fedya and Maths](https://codeforces.com/contest/456/problem/B) | [GNU C++14](./codeforces/456/B.cpp) | `math` `number theory` `*1200` | Jan/03/2018 01:57 | 
216 | [A - Bear and Poker](https://codeforces.com/contest/573/problem/A) | [GNU C++14](./codeforces/573/A.cpp) | `implementation` `math` `number theory` `*1300` | Jan/03/2018 01:53 | 
215 | [A - I'm bored with life](https://codeforces.com/contest/822/problem/A) | [GNU C++14](./codeforces/822/A.cpp) | `implementation` `math` `number theory` `*800` | Jan/03/2018 01:28 | 
214 | [A - Amr and Music](https://codeforces.com/contest/507/problem/A) | [GNU C++14](./codeforces/507/A.cpp) | `greedy` `implementation` `sortings` `*1000` | Jan/03/2018 01:14 | 
213 | [A - Appleman and Toastman](https://codeforces.com/contest/461/problem/A) | [GNU C++14](./codeforces/461/A.cpp) | `greedy` `sortings` `*1200` | Jan/03/2018 01:07 | 
212 | [A - Joysticks](https://codeforces.com/contest/651/problem/A) | [GNU C++14](./codeforces/651/A.cpp) | `dp` `greedy` `implementation` `math` `*1100` | Jan/03/2018 00:52 | 
211 | [C - New Year and Curling](https://codeforces.com/contest/908/problem/C) | [GNU C++14](./codeforces/908/C.cpp) | `brute force` `geometry` `implementation` `math` `*1500` | Dec/30/2017 08:21 | 
210 | [B - New Year and Buggy Bot](https://codeforces.com/contest/908/problem/B) | [GNU C++14](./codeforces/908/B.cpp) | `brute force` `implementation` `*1200` | Dec/29/2017 22:32 | 
209 | [A - New Year and Counting Cards](https://codeforces.com/contest/908/problem/A) | [GNU C++14](./codeforces/908/A.cpp) | `brute force` `implementation` `*800` | Dec/29/2017 21:46 | 
208 | [E - Stack Sorting](https://codeforces.com/contest/911/problem/E) | [GNU C++14](./codeforces/911/E.cpp) | `constructive algorithms` `data structures` `greedy` `implementation` `*2000` | Dec/29/2017 13:00 | 
207 | [D - Inversion Counting](https://codeforces.com/contest/911/problem/D) | [GNU C++14](./codeforces/911/D.cpp) | `brute force` `math` `*1800` | Dec/28/2017 23:07 | 
206 | [C - Three Garlands](https://codeforces.com/contest/911/problem/C) | [GNU C++14](./codeforces/911/C.cpp) | `brute force` `constructive algorithms` `*1400` | Dec/28/2017 22:11 | 
205 | [B - Two Cakes](https://codeforces.com/contest/911/problem/B) | [GNU C++14](./codeforces/911/B.cpp) | `binary search` `brute force` `implementation` `*1200` | Dec/28/2017 20:28 | 
204 | [A - Nearest Minimums](https://codeforces.com/contest/911/problem/A) | [GNU C++14](./codeforces/911/A.cpp) | `implementation` `*1100` | Dec/28/2017 20:14 | 
203 | [C - Python Indentation](https://codeforces.com/contest/909/problem/C) | [GNU C++14](./codeforces/909/C.cpp) | `dp` `*1800` | Dec/28/2017 15:07 | 
202 | [A - Generate Login](https://codeforces.com/contest/909/problem/A) | [GNU C++14](./codeforces/909/A.cpp) | `brute force` `greedy` `sortings` `*1000` | Dec/28/2017 08:27 | 
201 | [M - Quadcopter Competition](https://codeforces.com/contest/883/problem/M) | [GNU C++14](./codeforces/883/M.cpp) | `greedy` `math` `*1100` | Dec/23/2017 02:52 | 
200 | [F - Lost in Transliteration](https://codeforces.com/contest/883/problem/F) | [GNU C++14](./codeforces/883/F.cpp) | `implementation` `*1300` | Dec/23/2017 02:08 | 
199 | [A - The Way to Home](https://codeforces.com/contest/910/problem/A) | [GNU C++14](./codeforces/910/A.cpp) | `dfs and similar` `dp` `greedy` `implementation` `*800` | Dec/22/2017 19:11 | 
198 | [C - Minimum Sum](https://codeforces.com/contest/910/problem/C) | [GNU C++14](./codeforces/910/C.cpp) | `constructive algorithms` `greedy` `math` `*1700` | Dec/22/2017 19:08 | 
197 | [B - Jeff and Periods](https://codeforces.com/contest/352/problem/B) | [GNU C++14](./codeforces/352/B.cpp) | `implementation` `sortings` `*1300` | Dec/22/2017 07:14 | 
196 | [D - Buy Low Sell High](https://codeforces.com/contest/866/problem/D) | [GNU C++14](./codeforces/866/D.cpp) | `data structures` `greedy` `two pointers` `*2400` | Dec/22/2017 06:47 | 
195 | [A - Comparing Two Long Integers](https://codeforces.com/contest/616/problem/A) | [GNU C++14](./codeforces/616/A.cpp) | `implementation` `strings` `*900` | Dec/21/2017 23:39 | 
194 | [E - Sum of Remainders](https://codeforces.com/contest/616/problem/E) | [GNU C++14](./codeforces/616/E.cpp) | `implementation` `math` `number theory` `*2200` | Dec/21/2017 23:28 | 
193 | [B - Coloring a Tree](https://codeforces.com/contest/902/problem/B) | [GNU C++14](./codeforces/902/B.cpp) | `dfs and similar` `dsu` `greedy` `*1200` | Dec/19/2017 22:26 | 
192 | [A - Visiting a Friend](https://codeforces.com/contest/902/problem/A) | [GNU C++14](./codeforces/902/A.cpp) | `greedy` `implementation` `*1100` | Dec/19/2017 21:56 | 
191 | [E - Squares and not squares](https://codeforces.com/contest/898/problem/E) | [GNU C++14](./codeforces/898/E.cpp) | `constructive algorithms` `greedy` `*1600` | Dec/19/2017 20:06 | 
190 | [D - Shovel Sale](https://codeforces.com/contest/899/problem/D) | [GNU C++14](./codeforces/899/D.cpp) | `constructive algorithms` `math` `*1800` | Dec/19/2017 19:38 | 
189 | [C - Dividing the numbers](https://codeforces.com/contest/899/problem/C) | [GNU C++14](./codeforces/899/C.cpp) | `constructive algorithms` `graphs` `math` `*1300` | Dec/19/2017 18:16 | 
188 | [B - Two Sets](https://codeforces.com/contest/468/problem/B) | [GNU C++14](./codeforces/468/B.cpp) | `2-sat` `dfs and similar` `dsu` `graph matchings` `greedy` `*2000` | Dec/19/2017 17:17 | 
187 | [B - Odd sum](https://codeforces.com/contest/797/problem/B) | [GNU C++14](./codeforces/797/B.cpp) | `dp` `greedy` `implementation` `*1400` | Dec/18/2017 01:34 | 
186 | [D - Almost Difference](https://codeforces.com/contest/903/problem/D) | [GNU C++14](./codeforces/903/D.cpp) | `data structures` `math` `*2200` | Dec/14/2017 20:52 | 
185 | [C - Boxes Packing](https://codeforces.com/contest/903/problem/C) | [GNU C++14](./codeforces/903/C.cpp) | `greedy` `*1200` | Dec/14/2017 20:02 | 
184 | [D - Array Division](https://codeforces.com/contest/808/problem/D) | [GNU C++14](./codeforces/808/D.cpp) | `binary search` `data structures` `implementation` `*1900` | Dec/14/2017 19:51 | 
183 | [A - Subtractions](https://codeforces.com/contest/267/problem/A) | [GNU C++14](./codeforces/267/A.cpp) | `math` `number theory` `*900` | Dec/10/2017 19:23 | 
182 | [B - Sort the Array](https://codeforces.com/contest/451/problem/B) | [GNU C++14](./codeforces/451/B.cpp) | `implementation` `sortings` `*1300` | Dec/07/2017 01:14 | 
181 | [A - Pizza Separation](https://codeforces.com/contest/895/problem/A) | [GNU C++14](./codeforces/895/A.cpp) | `brute force` `implementation` `*1200` | Nov/27/2017 03:49 | 
180 | [B - Spreadsheet](https://codeforces.com/contest/1/problem/B) | [GNU C++14](./codeforces/1/B.cpp) | `implementation` `math` `*1600` | Nov/26/2017 04:47 | 
179 | [B - Five-In-a-Row](https://codeforces.com/contest/825/problem/B) | [GNU C++14](./codeforces/825/B.cpp) | `brute force` `implementation` `*1600` | Nov/26/2017 03:09 | 
178 | [B - Black Square](https://codeforces.com/contest/828/problem/B) | [GNU C++14](./codeforces/828/B.cpp) | `implementation` `*1300` | Nov/26/2017 02:06 | 
177 | [A - Unimodal Array](https://codeforces.com/contest/831/problem/A) | [GNU C++14](./codeforces/831/A.cpp) | `implementation` `*1000` | Nov/26/2017 01:26 | 
176 | [B - Keyboard Layouts](https://codeforces.com/contest/831/problem/B) | [GNU C++14](./codeforces/831/B.cpp) | `implementation` `strings` `*800` | Nov/26/2017 01:12 | 
175 | [B - The Eternal Immortality](https://codeforces.com/contest/869/problem/B) | [GNU C++14](./codeforces/869/B.cpp) | `math` `*1100` | Nov/26/2017 01:03 | 
174 | [G - University Classes](https://codeforces.com/contest/847/problem/G) | [GNU C++14](./codeforces/847/G.cpp) | `implementation` `*900` | Nov/26/2017 00:35 | 
173 | [A - Quasi-palindrome](https://codeforces.com/contest/863/problem/A) | [GNU C++14](./codeforces/863/A.cpp) | `brute force` `implementation` `*900` | Nov/26/2017 00:19 | 
172 | [B - Wrath](https://codeforces.com/contest/892/problem/B) | [GNU C++14](./codeforces/892/B.cpp) | `greedy` `implementation` `two pointers` `*1200` | Nov/24/2017 15:14 | 
171 | [B - Balanced Substring](https://codeforces.com/contest/873/problem/B) | [GNU C++14](./codeforces/873/B.cpp) | `dp` `implementation` `*1500` | Nov/22/2017 16:00 | 
170 | [D - Queue](https://codeforces.com/contest/545/problem/D) | [GNU C++14](./codeforces/545/D.cpp) | `greedy` `implementation` `sortings` `*1300` | Nov/18/2017 01:41 | 
169 | [A - Greed](https://codeforces.com/contest/892/problem/A) | [GNU C++14](./codeforces/892/A.cpp) | `greedy` `implementation` `*900` | Nov/17/2017 20:44 | 
168 | [D - Soldier and Number Game](https://codeforces.com/contest/546/problem/D) | [GNU C++14](./codeforces/546/D.cpp) | `constructive algorithms` `dp` `math` `number theory` `*1700` | Nov/17/2017 17:51 | 
167 | [B - Santa Claus and Keyboard Check](https://codeforces.com/contest/748/problem/B) | [GNU C++14](./codeforces/748/B.cpp) | `implementation` `strings` `*1500` | Nov/17/2017 06:27 | 
166 | [C - Hacking Cypher](https://codeforces.com/contest/490/problem/C) | [GNU C++14](./codeforces/490/C.cpp) | `brute force` `math` `number theory` `strings` `*1700` | Nov/17/2017 05:02 | 
165 | [B - Wilbur and Array](https://codeforces.com/contest/596/problem/B) | [GNU C++14](./codeforces/596/B.cpp) | `greedy` `implementation` `*1100` | Nov/17/2017 03:26 | 
164 | [B - Sum of Digits](https://codeforces.com/contest/102/problem/B) | [GNU C++14](./codeforces/102/B.cpp) | `implementation` `*1000` | Nov/16/2017 20:35 | 
163 | [C - K-special Tables](https://codeforces.com/contest/625/problem/C) | [GNU C++14](./codeforces/625/C.cpp) | `constructive algorithms` `implementation` `*1300` | Nov/16/2017 19:10 | 
162 | [B - Print Check](https://codeforces.com/contest/631/problem/B) | [GNU C++14](./codeforces/631/B.cpp) | `constructive algorithms` `implementation` `*1200` | Nov/16/2017 18:56 | 
161 | [C - Soldier and Cards](https://codeforces.com/contest/546/problem/C) | [GNU C++14](./codeforces/546/C.cpp) | `brute force` `dfs and similar` `games` `*1400` | Nov/15/2017 18:10 | 
160 | [A - Coder](https://codeforces.com/contest/384/problem/A) | [GNU C++14](./codeforces/384/A.cpp) | `implementation` `*800` | Nov/15/2017 17:47 | 
159 | [B - Vlad and Cafes](https://codeforces.com/contest/890/problem/B) | [GNU C++14](./codeforces/890/B.cpp) | `*1000` | Nov/12/2017 22:23 | 
158 | [A - ACM ICPC](https://codeforces.com/contest/890/problem/A) | [GNU C++14](./codeforces/890/A.cpp) | `brute force` `*1000` | Nov/12/2017 22:13 | 
157 | [C - Number of Ways](https://codeforces.com/contest/466/problem/C) | [GNU C++14](./codeforces/466/C.cpp) | `binary search` `brute force` `data structures` `dp` `two pointers` `*1700` | Nov/10/2017 18:59 | 
156 | [A - Soft Drinking](https://codeforces.com/contest/151/problem/A) | [GNU C++14](./codeforces/151/A.cpp) | `implementation` `math` `*800` | Nov/10/2017 18:15 | 
155 | [A - Currency System in Geraldion](https://codeforces.com/contest/560/problem/A) | [GNU C++14](./codeforces/560/A.cpp) | `implementation` `sortings` `*1000` | Nov/10/2017 18:04 | 
154 | [A - GukiZ and Contest](https://codeforces.com/contest/551/problem/A) | [GNU C++14](./codeforces/551/A.cpp) | `brute force` `implementation` `sortings` `*800` | Nov/10/2017 17:43 | 
153 | [C - K-Dominant Character](https://codeforces.com/contest/888/problem/C) | [GNU C++14](./codeforces/888/C.cpp) | `binary search` `implementation` `two pointers` `*1400` | Nov/09/2017 21:57 | 
152 | [B - Buggy Robot](https://codeforces.com/contest/888/problem/B) | [GNU C++14](./codeforces/888/B.cpp) | `greedy` `*1000` | Nov/09/2017 21:27 | 
151 | [A - Local Extrema](https://codeforces.com/contest/888/problem/A) | [GNU C++14](./codeforces/888/A.cpp) | `brute force` `implementation` `*800` | Nov/09/2017 21:16 | 
150 | [B - Interesting drink](https://codeforces.com/contest/706/problem/B) | [GNU C++14](./codeforces/706/B.cpp) | `binary search` `dp` `implementation` `*1100` | Nov/05/2017 00:51 | 
149 | [A - Vitya in the Countryside](https://codeforces.com/contest/719/problem/A) | [GNU C++14](./codeforces/719/A.cpp) | `implementation` `*1100` | Nov/05/2017 00:34 | 
148 | [A - Towers](https://codeforces.com/contest/37/problem/A) | [GNU C++14](./codeforces/37/A.cpp) | `sortings` `*1000` | Nov/05/2017 00:18 | 
147 | [A - Night at the Museum](https://codeforces.com/contest/731/problem/A) | [GNU C++14](./codeforces/731/A.cpp) | `implementation` `strings` `*800` | Nov/04/2017 01:48 | 
146 | [A - Div. 64](https://codeforces.com/contest/887/problem/A) | [GNU C++14](./codeforces/887/A.cpp) | `implementation` `*1000` | Nov/03/2017 23:06 | 
145 | [B - Cormen --- The Best Friend Of a Man](https://codeforces.com/contest/732/problem/B) | [GNU C++14](./codeforces/732/B.cpp) | `dp` `greedy` `*1000` | Nov/03/2017 18:58 | 
144 | [A - The number of positions](https://codeforces.com/contest/124/problem/A) | [GNU C++14](./codeforces/124/A.cpp) | `math` `*1000` | Nov/03/2017 18:36 | 
143 | [A - Wet Shark and Odd and Even](https://codeforces.com/contest/621/problem/A) | [GNU C++14](./codeforces/621/A.cpp) | `implementation` `*900` | Nov/03/2017 18:09 | 
142 | [A - Two Substrings](https://codeforces.com/contest/550/problem/A) | [GNU C++14](./codeforces/550/A.cpp) | `brute force` `dp` `greedy` `implementation` `strings` `*1500` | Nov/03/2017 17:59 | 
141 | [A - Cinema Line](https://codeforces.com/contest/349/problem/A) | [GNU C++14](./codeforces/349/A.cpp) | `greedy` `implementation` `*1100` | Nov/03/2017 04:05 | 
140 | [A - Elections](https://codeforces.com/contest/570/problem/A) | [GNU C++14](./codeforces/570/A.cpp) | `implementation` `*1100` | Nov/02/2017 02:53 | 
139 | [A - Strange Addition](https://codeforces.com/contest/305/problem/A) | [GNU C++14](./codeforces/305/A.cpp) | `brute force` `constructive algorithms` `implementation` `*1600` | Nov/02/2017 02:32 | 
138 | [A - Arpa’s hard exam and Mehrdad’s naive cheat](https://codeforces.com/contest/742/problem/A) | [GNU C++14](./codeforces/742/A.cpp) | `implementation` `math` `number theory` `*1000` | Nov/02/2017 01:57 | 
137 | [B - Two Buttons](https://codeforces.com/contest/520/problem/B) | [GNU C++14](./codeforces/520/B.cpp) | `dfs and similar` `graphs` `greedy` `implementation` `math` `shortest paths` `*1400` | Nov/02/2017 01:46 | 
136 | [B - Lecture](https://codeforces.com/contest/499/problem/B) | [GNU C++14](./codeforces/499/B.cpp) | `implementation` `strings` `*1000` | Nov/01/2017 23:23 | 
135 | [A - Free Cash](https://codeforces.com/contest/237/problem/A) | [GNU C++14](./codeforces/237/A.cpp) | `implementation` `*1000` | Nov/01/2017 22:42 | 
134 | [B - Random Teams](https://codeforces.com/contest/478/problem/B) | [GNU C++14](./codeforces/478/B.cpp) | `combinatorics` `constructive algorithms` `greedy` `math` `*1300` | Nov/01/2017 19:56 | 
133 | [A - Infinite Sequence](https://codeforces.com/contest/675/problem/A) | [GNU C++14](./codeforces/675/A.cpp) | `math` `*1100` | Nov/01/2017 19:19 | 
132 | [A - Bachgold Problem](https://codeforces.com/contest/749/problem/A) | [GNU C++14](./codeforces/749/A.cpp) | `greedy` `implementation` `math` `number theory` `*800` | Nov/01/2017 18:51 | 
131 | [A - One-dimensional Japanese Crossword](https://codeforces.com/contest/721/problem/A) | [GNU C++14](./codeforces/721/A.cpp) | `implementation` `*800` | Nov/01/2017 18:39 | 
130 | [A - Laptops](https://codeforces.com/contest/456/problem/A) | [GNU C++14](./codeforces/456/A.cpp) | `sortings` `*1100` | Nov/01/2017 17:54 | 
129 | [A - Cards](https://codeforces.com/contest/701/problem/A) | [GNU C++14](./codeforces/701/A.cpp) | `greedy` `implementation` `*800` | Nov/01/2017 17:35 | 
128 | [A - Chewbaсca and Number](https://codeforces.com/contest/514/problem/A) | [GNU C++14](./codeforces/514/A.cpp) | `greedy` `implementation` `*1200` | Nov/01/2017 02:05 | 
127 | [B - Ilya and Queries](https://codeforces.com/contest/313/problem/B) | [GNU C++14](./codeforces/313/B.cpp) | `dp` `implementation` `*1100` | Nov/01/2017 01:53 | 
126 | [A - Grasshopper And the String](https://codeforces.com/contest/733/problem/A) | [GNU C++14](./codeforces/733/A.cpp) | `implementation` `*1000` | Nov/01/2017 01:40 | 
125 | [A - Drazil and Date](https://codeforces.com/contest/515/problem/A) | [GNU C++14](./codeforces/515/A.cpp) | `math` `*1000` | Nov/01/2017 01:29 | 
124 | [A - Pashmak and Garden](https://codeforces.com/contest/459/problem/A) | [GNU C++14](./codeforces/459/A.cpp) | `implementation` `*1200` | Oct/31/2017 02:55 | 
123 | [A - Anton and Polyhedrons](https://codeforces.com/contest/785/problem/A) | [GNU C++14](./codeforces/785/A.cpp) | `implementation` `strings` `*800` | Oct/31/2017 02:21 | 
122 | [B - Anton and Digits](https://codeforces.com/contest/734/problem/B) | [GNU C++14](./codeforces/734/B.cpp) | `brute force` `greedy` `implementation` `math` `*800` | Oct/31/2017 02:16 | 
121 | [B - Pashmak and Flowers](https://codeforces.com/contest/459/problem/B) | [GNU C++14](./codeforces/459/B.cpp) | `combinatorics` `implementation` `sortings` `*1300` | Oct/31/2017 02:04 | 
120 | [A - Magic Numbers](https://codeforces.com/contest/320/problem/A) | [GNU C++14](./codeforces/320/A.cpp) | `brute force` `greedy` `*900` | Oct/28/2017 22:59 | 
119 | [A - Lineland Mail](https://codeforces.com/contest/567/problem/A) | [GNU C++14](./codeforces/567/A.cpp) | `greedy` `implementation` `*900` | Oct/28/2017 22:18 | 
118 | [A - Bark to Unlock](https://codeforces.com/contest/868/problem/A) | [GNU C++14](./codeforces/868/A.cpp) | `brute force` `implementation` `strings` `*900` | Oct/28/2017 21:45 | 
117 | [A - Devu, the Singer and Churu, the Joker](https://codeforces.com/contest/439/problem/A) | [GNU C++14](./codeforces/439/A.cpp) | `greedy` `implementation` `*900` | Oct/28/2017 21:26 | 
116 | [B - Worms](https://codeforces.com/contest/474/problem/B) | [GNU C++14](./codeforces/474/B.cpp) | `binary search` `implementation` `*1200` | Oct/28/2017 21:11 | 
115 | [B - BerSU Ball](https://codeforces.com/contest/489/problem/B) | [GNU C++14](./codeforces/489/B.cpp) | `dfs and similar` `dp` `graph matchings` `greedy` `sortings` `two pointers` `*1200` | Oct/28/2017 20:26 | 
114 | [A - Crazy Computer](https://codeforces.com/contest/716/problem/A) | [GNU C++14](./codeforces/716/A.cpp) | `implementation` `*800` | Oct/28/2017 19:43 | 
113 | [B - Mahmoud and a Triangle](https://codeforces.com/contest/766/problem/B) | [GNU C++14](./codeforces/766/B.cpp) | `constructive algorithms` `geometry` `greedy` `math` `number theory` `sortings` `*1000` | Oct/28/2017 19:30 | 
112 | [C - Drazil and Factorial](https://codeforces.com/contest/515/problem/C) | [GNU C++14](./codeforces/515/C.cpp) | `greedy` `math` `sortings` `*1400` | Oct/28/2017 05:07 | 
111 | [C - A and B and Team Training](https://codeforces.com/contest/519/problem/C) | [GNU C++14](./codeforces/519/C.cpp) | `greedy` `implementation` `math` `number theory` `*1300` | Oct/28/2017 03:35 | 
110 | [B - Fedor and New Game](https://codeforces.com/contest/467/problem/B) | [GNU C++14](./codeforces/467/B.cpp) | `bitmasks` `brute force` `constructive algorithms` `implementation` `*1100` | Oct/28/2017 01:14 | 
109 | [A - A and B and Chess](https://codeforces.com/contest/519/problem/A) | [GNU C++14](./codeforces/519/A.cpp) | `implementation` `*900` | Oct/28/2017 00:19 | 
108 | [A - Bear and Big Brother](https://codeforces.com/contest/791/problem/A) | [GNU C++14](./codeforces/791/A.cpp) | `implementation` `*800` | Oct/27/2017 23:40 | 
107 | [B - Table Tennis](https://codeforces.com/contest/879/problem/B) | [GNU C++14](./codeforces/879/B.cpp) | `data structures` `implementation` `*1200` | Oct/27/2017 23:25 | 
106 | [A - Game](https://codeforces.com/contest/513/problem/A) | [GNU C++14](./codeforces/513/A.cpp) | `constructive algorithms` `math` `*800` | Oct/27/2017 22:39 | 
105 | [A - Borya's Diagnosis](https://codeforces.com/contest/879/problem/A) | [GNU C++14](./codeforces/879/A.cpp) | `implementation` `*900` | Oct/26/2017 21:10 | 
104 | [A - Holiday Of Equality](https://codeforces.com/contest/758/problem/A) | [GNU C++](./codeforces/758/A.cpp) | `implementation` `math` `*800` | Oct/26/2017 17:14 | 
103 | [A - Mishka and Game](https://codeforces.com/contest/703/problem/A) | [GNU C++](./codeforces/703/A.cpp) | `implementation` `*800` | Oct/26/2017 17:06 | 
102 | [A - Police Recruits](https://codeforces.com/contest/427/problem/A) | [GNU C++](./codeforces/427/A.cpp) | `implementation` `*800` | Oct/26/2017 16:58 | 
101 | [A - Brain's Photos](https://codeforces.com/contest/707/problem/A) | [GNU C++](./codeforces/707/A.cpp) | `implementation` `*800` | Oct/26/2017 14:13 | 
100 | [A - Flipping Game](https://codeforces.com/contest/327/problem/A) | [GNU C++](./codeforces/327/A.cpp) | `brute force` `dp` `implementation` `*1200` | Oct/26/2017 13:30 | 
99 | [C - Given Length and Sum of Digits...](https://codeforces.com/contest/489/problem/C) | [GNU C++](./codeforces/489/C.cpp) | `dp` `greedy` `implementation` `*1400` | Oct/26/2017 01:18 | 
98 | [A - Initial Bet](https://codeforces.com/contest/478/problem/A) | [GNU C++](./codeforces/478/A.cpp) | `implementation` `*1100` | Oct/26/2017 00:32 | 
97 | [A - Team Olympiad](https://codeforces.com/contest/490/problem/A) | [GNU C++](./codeforces/490/A.cpp) | `greedy` `implementation` `sortings` `*800` | Oct/26/2017 00:23 | 
96 | [A - Bus to Udayland](https://codeforces.com/contest/711/problem/A) | [GNU C++](./codeforces/711/A.cpp) | `brute force` `implementation` `*800` | Oct/25/2017 23:54 | 
95 | [A - Combination Lock](https://codeforces.com/contest/540/problem/A) | [GNU C++](./codeforces/540/A.cpp) | `implementation` `*800` | Oct/25/2017 23:31 | 
94 | [A - Vasya the Hipster](https://codeforces.com/contest/581/problem/A) | [GNU C++](./codeforces/581/A.cpp) | `implementation` `math` `*800` | Oct/25/2017 23:14 | 
93 | [A - Choosing Teams](https://codeforces.com/contest/432/problem/A) | [GNU C++](./codeforces/432/A.cpp) | `greedy` `implementation` `sortings` `*800` | Oct/25/2017 20:11 | 
92 | [A - Cut Ribbon](https://codeforces.com/contest/189/problem/A) | [GNU C++](./codeforces/189/A.cpp) | `brute force` `dp` `*1300` | Oct/25/2017 19:58 | 
91 | [A - Patrick and Shopping](https://codeforces.com/contest/599/problem/A) | [GNU C++](./codeforces/599/A.cpp) | `implementation` `*800` | Oct/25/2017 19:30 | 
90 | [A - Raising Bacteria](https://codeforces.com/contest/579/problem/A) | [GNU C++](./codeforces/579/A.cpp) | `bitmasks` `*1000` | Oct/25/2017 19:19 | 
89 | [A - New Year and Hurry](https://codeforces.com/contest/750/problem/A) | [GNU C++](./codeforces/750/A.cpp) | `binary search` `brute force` `implementation` `math` `*800` | Oct/25/2017 19:09 | 
88 | [A - Buy a Shovel](https://codeforces.com/contest/732/problem/A) | [GNU C++](./codeforces/732/A.cpp) | `brute force` `constructive algorithms` `implementation` `math` `*800` | Oct/25/2017 18:56 | 
87 | [A - Fancy Fence](https://codeforces.com/contest/270/problem/A) | [GNU C++](./codeforces/270/A.cpp) | `geometry` `implementation` `math` `*1100` | Oct/25/2017 18:48 | 
86 | [A - Olesya and Rodion](https://codeforces.com/contest/584/problem/A) | [GNU C++](./codeforces/584/A.cpp) | `math` `*1000` | Oct/25/2017 18:39 | 
85 | [A - The New Year: Meeting Friends](https://codeforces.com/contest/723/problem/A) | [GNU C++](./codeforces/723/A.cpp) | `implementation` `math` `sortings` `*800` | Oct/25/2017 18:22 | 
84 | [B - Drinks](https://codeforces.com/contest/200/problem/B) | [GNU C++](./codeforces/200/B.cpp) | `implementation` `math` `*800` | Oct/25/2017 18:12 | 
83 | [B - Vanya and Lanterns](https://codeforces.com/contest/492/problem/B) | [GNU C++](./codeforces/492/B.cpp) | `binary search` `implementation` `math` `sortings` `*1200` | Oct/25/2017 18:04 | 
82 | [A - Cheap Travel](https://codeforces.com/contest/466/problem/A) | [GNU C++](./codeforces/466/A.cpp) | `implementation` `*1200` | Oct/25/2017 17:41 | 
81 | [A - Vanya and Fence](https://codeforces.com/contest/677/problem/A) | [GNU C++](./codeforces/677/A.cpp) | `implementation` `*800` | Oct/25/2017 17:24 | 
80 | [A - Ilya and Bank Account](https://codeforces.com/contest/313/problem/A) | [GNU C++](./codeforces/313/A.cpp) | `implementation` `number theory` `*900` | Oct/25/2017 01:18 | 
79 | [B - Buttons](https://codeforces.com/contest/268/problem/B) | [GNU C++](./codeforces/268/B.cpp) | `implementation` `math` `*1000` | Oct/24/2017 22:06 | 
78 | [A - Anton and Danik](https://codeforces.com/contest/734/problem/A) | [GNU C++](./codeforces/734/A.cpp) | `implementation` `strings` `*800` | Oct/24/2017 21:29 | 
77 | [A - Dragons](https://codeforces.com/contest/230/problem/A) | [GNU C++](./codeforces/230/A.cpp) | `greedy` `sortings` `*1000` | Oct/24/2017 21:16 | 
76 | [C - Pythagorean Triples](https://codeforces.com/contest/707/problem/C) | [GNU C++](./codeforces/707/C.cpp) | `math` `number theory` `*1500` | Oct/24/2017 03:51 | 
75 | [B - Xenia and Ringroad](https://codeforces.com/contest/339/problem/B) | [GNU C++](./codeforces/339/B.cpp) | `implementation` `*1000` | Oct/24/2017 00:39 | 
74 | [A - Maximum in Table](https://codeforces.com/contest/509/problem/A) | [GNU C++](./codeforces/509/A.cpp) | `brute force` `implementation` `*800` | Oct/23/2017 19:16 | 
73 | [A - Boredom](https://codeforces.com/contest/455/problem/A) | [GNU C++](./codeforces/455/A.cpp) | `dp` `*1500` | Oct/23/2017 19:01 | 
72 | [A - Vanya and Cubes](https://codeforces.com/contest/492/problem/A) | [GNU C++](./codeforces/492/A.cpp) | `implementation` `*800` | Oct/23/2017 18:22 | 
71 | [A - Business trip](https://codeforces.com/contest/149/problem/A) | [GNU C++](./codeforces/149/A.cpp) | `greedy` `implementation` `sortings` `*900` | Oct/23/2017 18:08 | 
70 | [A - Dreamoon and Stairs](https://codeforces.com/contest/476/problem/A) | [GNU C++](./codeforces/476/A.cpp) | `implementation` `math` `*1000` | Oct/23/2017 17:57 | 
69 | [A - Amusing Joke](https://codeforces.com/contest/141/problem/A) | [GNU C++](./codeforces/141/A.cpp) | `implementation` `sortings` `strings` `*800` | Oct/23/2017 17:49 | 
68 | [A - Pangram](https://codeforces.com/contest/520/problem/A) | [GNU C++](./codeforces/520/A.cpp) | `implementation` `strings` `*800` | Oct/23/2017 17:30 | 
67 | [A - Fox And Snake](https://codeforces.com/contest/510/problem/A) | [GNU C++](./codeforces/510/A.cpp) | `implementation` `*800` | Oct/23/2017 17:16 | 
66 | [A - Word](https://codeforces.com/contest/59/problem/A) | [GNU C++](./codeforces/59/A.cpp) | `implementation` `strings` `*800` | Oct/23/2017 17:07 | 
65 | [A - Gravity Flip](https://codeforces.com/contest/405/problem/A) | [GNU C++](./codeforces/405/A.cpp) | `greedy` `implementation` `sortings` `*900` | Oct/23/2017 16:57 | 
64 | [A - Anton and Letters](https://codeforces.com/contest/443/problem/A) | [GNU C++](./codeforces/443/A.cpp) | `constructive algorithms` `implementation` `*800` | Oct/23/2017 16:48 | 
63 | [A - New Year Transportation](https://codeforces.com/contest/500/problem/A) | [GNU C++](./codeforces/500/A.cpp) | `dfs and similar` `graphs` `implementation` `*1000` | Oct/23/2017 16:14 | 
62 | [A - Games](https://codeforces.com/contest/268/problem/A) | [GNU C++](./codeforces/268/A.cpp) | `brute force` `*800` | Oct/23/2017 15:53 | 
61 | [A - New Year Candles](https://codeforces.com/contest/379/problem/A) | [GNU C++](./codeforces/379/A.cpp) | `implementation` `*1000` | Oct/23/2017 15:41 | 
60 | [A - Vasya and Socks](https://codeforces.com/contest/460/problem/A) | [GNU C++](./codeforces/460/A.cpp) | `brute force` `implementation` `math` `*900` | Oct/23/2017 15:37 | 
59 | [A - Double Cola](https://codeforces.com/contest/82/problem/A) | [GNU C++](./codeforces/82/A.cpp) | `implementation` `math` `*1100` | Oct/23/2017 15:01 | 
58 | [A - Magnets](https://codeforces.com/contest/344/problem/A) | [GNU C++](./codeforces/344/A.cpp) | `implementation` `*800` | Oct/23/2017 02:05 | 
57 | [B - Cells Not Under Attack](https://codeforces.com/contest/701/problem/B) | [GNU C++](./codeforces/701/B.cpp) | `data structures` `math` `*1200` | Oct/23/2017 00:16 | 
56 | [A - Is your horseshoe on the other hoof?](https://codeforces.com/contest/228/problem/A) | [GNU C++](./codeforces/228/A.cpp) | `implementation` `*800` | Oct/22/2017 20:43 | 
55 | [A - Case of the Zeros and Ones](https://codeforces.com/contest/556/problem/A) | [GNU C++](./codeforces/556/A.cpp) | `greedy` `*900` | Oct/22/2017 20:14 | 
54 | [B - A and B and Compilation Errors](https://codeforces.com/contest/519/problem/B) | [GNU C++](./codeforces/519/B.cpp) | `data structures` `implementation` `sortings` `*1100` | Oct/22/2017 20:00 | 
53 | [A - Epic Game](https://codeforces.com/contest/119/problem/A) | [GNU C++](./codeforces/119/A.cpp) | `implementation` `*800` | Oct/22/2017 19:27 | 
52 | [A - Hulk](https://codeforces.com/contest/705/problem/A) | [GNU C++](./codeforces/705/A.cpp) | `implementation` `*800` | Oct/22/2017 18:54 | 
51 | [A - IQ test](https://codeforces.com/contest/25/problem/A) | [GNU C++](./codeforces/25/A.cpp) | `brute force` `*1300` | Oct/22/2017 18:47 | 
50 | [A - Duff and Meat](https://codeforces.com/contest/588/problem/A) | [GNU C++](./codeforces/588/A.cpp) | `greedy` `*900` | Oct/22/2017 18:37 | 
49 | [A - Rewards](https://codeforces.com/contest/448/problem/A) | [GNU C++](./codeforces/448/A.cpp) | `implementation` `*800` | Oct/22/2017 18:23 | 
48 | [A - Design Tutorial: Learn from Math](https://codeforces.com/contest/472/problem/A) | [GNU C++](./codeforces/472/A.cpp) | `math` `number theory` `*800` | Oct/22/2017 18:08 | 
47 | [A - I Wanna Be the Guy](https://codeforces.com/contest/469/problem/A) | [GNU C++](./codeforces/469/A.cpp) | `greedy` `implementation` `*800` | Oct/22/2017 17:51 | 
46 | [A - Elephant](https://codeforces.com/contest/617/problem/A) | [GNU C++](./codeforces/617/A.cpp) | `math` `*800` | Oct/22/2017 17:41 | 
45 | [A - Arrival of the General](https://codeforces.com/contest/144/problem/A) | [GNU C++](./codeforces/144/A.cpp) | `implementation` `*800` | Oct/22/2017 17:33 | 
44 | [A - Game With Sticks](https://codeforces.com/contest/451/problem/A) | [GNU C++](./codeforces/451/A.cpp) | `implementation` `*900` | Oct/22/2017 14:21 | 
43 | [A - Plant](https://codeforces.com/contest/185/problem/A) | [GNU C++](./codeforces/185/A.cpp) | `math` `*1300` | Oct/22/2017 05:55 | 
42 | [A - Numbers Joke](https://codeforces.com/contest/784/problem/A) | [GNU C++](./codeforces/784/A.cpp) | `*special problem` `*1700` | Oct/22/2017 04:34 | 
41 | [A - Dubstep](https://codeforces.com/contest/208/problem/A) | [GNU C++](./codeforces/208/A.cpp) | `strings` `*900` | Oct/22/2017 04:18 | 
40 | [A - Calculating Function](https://codeforces.com/contest/486/problem/A) | [GNU C++](./codeforces/486/A.cpp) | `implementation` `math` `*800` | Oct/22/2017 03:43 | 
39 | [A - Expression](https://codeforces.com/contest/479/problem/A) | [GNU C++](./codeforces/479/A.cpp) | `brute force` `math` `*1000` | Oct/22/2017 03:35 | 
38 | [A - Presents](https://codeforces.com/contest/136/problem/A) | [GNU C++](./codeforces/136/A.cpp) | `implementation` `*800` | Oct/22/2017 03:16 | 
37 | [A - Kefa and First Steps](https://codeforces.com/contest/580/problem/A) | [GNU C++](./codeforces/580/A.cpp) | `brute force` `dp` `implementation` `*900` | Oct/22/2017 03:02 | 
36 | [A - I_love_\%username\%](https://codeforces.com/contest/155/problem/A) | [GNU C++](./codeforces/155/A.cpp) | `brute force` `*800` | Oct/22/2017 02:46 | 
35 | [C - Registration System](https://codeforces.com/contest/4/problem/C) | [GNU C++](./codeforces/4/C.cpp) | `data structures` `hashing` `implementation` `*1300` | Oct/22/2017 02:08 | 
34 | [A - Multiplication Table](https://codeforces.com/contest/577/problem/A) | [GNU C++](./codeforces/577/A.cpp) | `implementation` `number theory` `*1000` | Oct/22/2017 01:24 | 
33 | [A - Keyboard](https://codeforces.com/contest/474/problem/A) | [GNU C++](./codeforces/474/A.cpp) | `implementation` `*900` | Oct/22/2017 00:46 | 
32 | [A - Ultra-Fast Mathematician](https://codeforces.com/contest/61/problem/A) | [GNU C++](./codeforces/61/A.cpp) | `implementation` `*800` | Oct/22/2017 00:13 | 
31 | [A - Even Odds](https://codeforces.com/contest/318/problem/A) | [GNU C++](./codeforces/318/A.cpp) | `math` `*900` | Oct/22/2017 00:07 | 
30 | [A - Translation](https://codeforces.com/contest/41/problem/A) | [GNU C++](./codeforces/41/A.cpp) | `implementation` `strings` `*800` | Oct/21/2017 21:20 | 
29 | [A - Beautiful Year](https://codeforces.com/contest/271/problem/A) | [GNU C++](./codeforces/271/A.cpp) | `brute force` `*800` | Oct/21/2017 20:43 | 
28 | [A - Insomnia cure](https://codeforces.com/contest/148/problem/A) | [GNU C++](./codeforces/148/A.cpp) | `constructive algorithms` `implementation` `math` `*800` | Oct/21/2017 20:22 | 
27 | [A - Puzzles](https://codeforces.com/contest/337/problem/A) | [GNU C++](./codeforces/337/A.cpp) | `greedy` `*900` | Oct/21/2017 20:09 | 
26 | [B - Queue at the School](https://codeforces.com/contest/266/problem/B) | [GNU C++](./codeforces/266/B.cpp) | `constructive algorithms` `graph matchings` `implementation` `shortest paths` `*800` | Oct/21/2017 19:54 | 
25 | [A - Nearly Lucky Number](https://codeforces.com/contest/110/problem/A) | [GNU C++](./codeforces/110/A.cpp) | `implementation` `*800` | Oct/21/2017 19:46 | 
24 | [A - Young Physicist](https://codeforces.com/contest/69/problem/A) | [GNU C++](./codeforces/69/A.cpp) | `implementation` `math` `*1000` | Oct/21/2017 19:39 | 
23 | [A - George and Accommodation](https://codeforces.com/contest/467/problem/A) | [GNU C++](./codeforces/467/A.cpp) | `implementation` `*800` | Oct/21/2017 19:31 | 
22 | [A - Soldier and Bananas](https://codeforces.com/contest/546/problem/A) | [GNU C++](./codeforces/546/A.cpp) | `brute force` `implementation` `math` `*800` | Oct/21/2017 19:27 | 
21 | [A - Boy or Girl](https://codeforces.com/contest/236/problem/A) | [GNU C++](./codeforces/236/A.cpp) | `brute force` `implementation` `strings` `*800` | Oct/21/2017 19:14 | 
20 | [A - Lucky Division](https://codeforces.com/contest/122/problem/A) | [GNU C++](./codeforces/122/A.cpp) | `brute force` `number theory` `*1000` | Oct/21/2017 19:05 | 
19 | [A - Chat room](https://codeforces.com/contest/58/problem/A) | [GNU C++](./codeforces/58/A.cpp) | `greedy` `strings` `*1000` | Oct/21/2017 18:57 | 
18 | [A - Twins](https://codeforces.com/contest/160/problem/A) | [GNU C++](./codeforces/160/A.cpp) | `greedy` `sortings` `*900` | Oct/21/2017 18:46 | 
17 | [A - Beautiful Matrix](https://codeforces.com/contest/263/problem/A) | [GNU C++](./codeforces/263/A.cpp) | `implementation` `*800` | Oct/21/2017 18:29 | 
16 | [A - HQ9+](https://codeforces.com/contest/133/problem/A) | [GNU C++](./codeforces/133/A.cpp) | `implementation` `*900` | Oct/21/2017 18:18 | 
15 | [A - cAPS lOCK](https://codeforces.com/contest/131/problem/A) | [GNU C++](./codeforces/131/A.cpp) | `implementation` `strings` `*1000` | Oct/21/2017 17:09 | 
14 | [A - Word Capitalization](https://codeforces.com/contest/281/problem/A) | [GNU C++](./codeforces/281/A.cpp) | `implementation` `strings` `*800` | Oct/21/2017 16:40 | 
13 | [A - Tram](https://codeforces.com/contest/116/problem/A) | [GNU C++](./codeforces/116/A.cpp) | `implementation` `*800` | Oct/21/2017 16:29 | 
12 | [A - Stones on the Table](https://codeforces.com/contest/266/problem/A) | [GNU C++](./codeforces/266/A.cpp) | `implementation` `*800` | Oct/21/2017 16:08 | 
11 | [B - Taxi](https://codeforces.com/contest/158/problem/B) | [GNU C++](./codeforces/158/B.cpp) | `*special problem` `greedy` `implementation` `*1100` | Oct/21/2017 15:57 | 
10 | [A - Helpful Maths](https://codeforces.com/contest/339/problem/A) | [GNU C++](./codeforces/339/A.cpp) | `greedy` `implementation` `sortings` `strings` `*800` | Oct/21/2017 01:25 | 
9 | [A - Petya and Strings](https://codeforces.com/contest/112/problem/A) | [GNU C++](./codeforces/112/A.cpp) | `implementation` `strings` `*800` | Oct/21/2017 00:41 | 
8 | [A - Football](https://codeforces.com/contest/96/problem/A) | [GNU C++](./codeforces/96/A.cpp) | `implementation` `strings` `*900` | Oct/21/2017 00:24 | 
7 | [A - Bit++](https://codeforces.com/contest/282/problem/A) | [GNU C++](./codeforces/282/A.cpp) | `implementation` `*800` | Oct/21/2017 00:00 | 
6 | [A - Team](https://codeforces.com/contest/231/problem/A) | [GNU C++](./codeforces/231/A.cpp) | `brute force` `greedy` `*800` | Oct/20/2017 23:55 | 
5 | [A - Domino piling](https://codeforces.com/contest/50/problem/A) | [GNU C++](./codeforces/50/A.cpp) | `greedy` `math` `*800` | Oct/20/2017 23:46 | 
4 | [A - String Task](https://codeforces.com/contest/118/problem/A) | [GNU C++](./codeforces/118/A.cpp) | `implementation` `strings` `*1000` | Oct/20/2017 23:39 | 
3 | [A - Next Round](https://codeforces.com/contest/158/problem/A) | [GNU C++](./codeforces/158/A.cpp) | `*special problem` `implementation` `*800` | Oct/20/2017 23:21 | 
2 | [A - Way Too Long Words](https://codeforces.com/contest/71/problem/A) | [GNU C++](./codeforces/71/A.cpp) | `strings` `*800` | Oct/20/2017 23:02 | 
1 | [A - Theatre Square](https://codeforces.com/contest/1/problem/A) | [GNU C++](./codeforces/1/A.cpp) | `math` `*1000` | Oct/19/2017 01:46 |