Envío 3457

Código

import java.util.Scanner;

class Main {

    private static final Scanner scanner = new Scanner(System.in);
    public static void main(String[] args) {
        int n = Integer.parseInt(scanner.nextLine());
        long[] a = new long[n];

        int i = 0;
        for (String s : scanner.nextLine().split(" ")) {
            a[i] = Long.parseLong(s);
            i++;
        }

        long acummulator = a[0];
        long best = acummulator;
        for (i = 1; i < n; i++) {
            acummulator = Math.max(a[i], acummulator + a[i]);
            best = Math.max(best, acummulator);
        }

        System.out.println(best);
        scanner.close();
    }
}