제출 #897478

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
897478		mihtriii295	Tuna (COCI17_tuna)	C++17	50 / 50	1 ms	452 KiB

tuna

#include<bits/stdc++.h>
#pragma GCC optimize("O2")
#define ll  long long
#define TIME (1.0 * clock() / CLOCKS_PER_SEC)
#define el  cout << '\n' 

using namespace std;

const ll N = 1e5 + 1;
const ll logN = 20;
const ll MOD = 1e9 + 7;

int n, x, res;

int main(){
    if(fopen("coci1617_r5_tuna.inp", "r")){
        freopen("coci1617_r5_tuna.inp", "r", stdin);
        freopen("coci1617_r5_tuna.out", "w", stdout);
    }
    ios_base::sync_with_stdio(0); cin.tie(NULL);
    cout.tie(NULL);
    cin >> n >> x;
    for (int i = 1; i <= n; ++i){
        int a, b;
        cin >> a >> b;
        if (abs(a - b) <= x)
            res += max(a, b);
        else{
            int c;
            cin >> c;
            res += c;
        }
    }
    cout << res;
    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

tuna.cpp: In function 'int main()':
tuna.cpp:17:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   17 |         freopen("coci1617_r5_tuna.inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
tuna.cpp:18:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   18 |         freopen("coci1617_r5_tuna.out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 50 / 50