제출 #344521

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
344521		Nurlykhan	Bigger segments (IZhO19_segments)	C++17	0 / 100	1 ms	364 KiB

segments

#include <bits/stdc++.h>

#define ll long long

using namespace std;

const int N = (int)5e5 + 10;
const int mod = (int)1e9 + 7;

int n;
int a[N];
ll pref[N];

ll get_sum(int l, int r) {
    return pref[r] - pref[l - 1];
}

int main() {
    scanf("%d", &n);
    for (int i = 1; i <= n; i++) {
        scanf("%d", &a[i]);
        pref[i] = pref[i - 1] + a[i];
    }
    int ans = 0;
    for (int i = 1; i <= n; i++) {
        ll cur_sum = 0;
        ll prev_sum = get_sum(1, i);
        int cnt = 0, j = i + 1;
        while (j <= n) {
            cur_sum += a[j];
            if (cur_sum >= prev_sum) {
                cur_sum = 0;
                cnt++;
            }
            j++;
        }
        ans = max(ans, cnt + 1);
    }
    printf("%d", ans);
    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

segments.cpp: In function 'int main()':
segments.cpp:19:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   19 |     scanf("%d", &n);
      |     ~~~~~^~~~~~~~~~
segments.cpp:21:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   21 |         scanf("%d", &a[i]);
      |         ~~~~~^~~~~~~~~~~~~

• Subtask 1: 0 / 13
• Subtask 2: 0 / 14
• Subtask 3: 0 / 10
• Subtask 4: 0 / 36
• Subtask 5: 0 / 27