boj1912.java

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.StringTokenizer;

public class boj1912 {

    static int n;
    static int[] arr, dp;

    public static void main(String[] args) throws IOException {
        input();
        recur(n);
    }

    static void input() throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

        n = Integer.parseInt(br.readLine());
        dp = new int[n];
        arr = new int[n];

        StringTokenizer st = new StringTokenizer(br.readLine());
        for (int i = 0; i < n; i++) {
            arr[i] = Integer.parseInt(st.nextToken());
        }
    }

    static void recur(int num) {

        int max = arr[0];
        dp[0] = arr[0];

        for (int i = 1; i < num; i++) {
            dp[i] = Math.max(dp[i - 1] + arr[i], arr[i]);
            max = Math.max(max, dp[i]);
        }

        System.out.println(max);
    }
}