Submission #15257

#	Time	Username	Problem	Language	Result	Execution time	Memory
15257		tonyjjw	달리는 게임 (kriii3_E)	C++14	0 / 70	0 ms	9280 KiB

E

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <algorithm>
#include <vector>
using namespace std;

const int N = 1024;
const long long INF = 1000ll * 1000ll * 1000ll * 1000ll * 1000ll;

int n, a[N];
long long dp[N][N];

int main(void) {
    scanf("%d", &n);
    for (int i = 1; i <= n; i++) {
        scanf("%d", &a[i]);
    }

    for (int i = 0; i <= n; i++)
        for (int j = 0; j <= n; j++)
            dp[i][j] = -INF;

    dp[0][0] = 0;

    for (int i = 1; i <= n; i++) {
        dp[i][0] = dp[i-1][0];
        for (int j = 1; j <= i; j++) {
            dp[i][j] = max(dp[i-1][j], dp[i-1][j-1] + (long long)j * a[i]);
        }
    }

    long long ans = 0;
    for (int j = 1; j <= n; j++) {
        ans = max(ans, dp[n][j]);
    }
    printf("%lld\n", ans);
    
    return 0;
}

• Subtask 1: 0 / 26
• Subtask 2: 0 / 44