제출 #154214

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
154214		KCSC	Akcija (COCI15_akcija)	C++14	0 / 80	2 ms	380 KiB

akcija

#include <bits/stdc++.h>
using namespace std;

const int DIM = 100005;

int arr[DIM];

int main(void) {
    freopen("b.in", "r", stdin);
    freopen("b.out", "w", stdout);
    int n;
    cin >> n;
    long long ans = 0;
    for (int i = 1; i <= n; ++i) {
        cin >> arr[i];
        ans += arr[i];
    }
    sort(arr + 1, arr + n + 1);
    for (int i = n - 2; i >= 1; i -= 3)
        ans -= arr[i];
    cout << ans;
    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

akcija.cpp: In function 'int main()':
akcija.cpp:9:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
     freopen("b.in", "r", stdin);
     ~~~~~~~^~~~~~~~~~~~~~~~~~~~
akcija.cpp:10:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
     freopen("b.out", "w", stdout);
     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 80