diff --git "a/leetcode3/\353\263\200\354\247\200\355\230\221/v2/1539. Kth Missing Positive Number.py" "b/leetcode3/\353\263\200\354\247\200\355\230\221/v2/1539. Kth Missing Positive Number.py"
new file mode 100644
index 00000000..c74b9085
--- /dev/null
+++ "b/leetcode3/\353\263\200\354\247\200\355\230\221/v2/1539. Kth Missing Positive Number.py"	
@@ -0,0 +1,26 @@
+'''
+1. 아이디어 :
+arr 뒤집고 pop()할 때는 ans에 안넣음.
+
+2. 시간복잡도 :
+
+3. 자료구조/알고리즘 :
+'''
+class Solution:
+    def findKthPositive(self, arr: List[int], k: int) -> int:
+        i = 1
+        lmt = 0
+        arr = arr[::-1]
+        while True:
+            if len(arr) == 0:
+                lmt += 1
+            elif arr[-1] == i:
+                arr.pop()
+            else:
+                lmt += 1
+            
+            if lmt == k:
+                break
+            i += 1
+
+        return i