제출 #674555

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
674555		guagua0407	Self Study (JOI22_ho_t2)	C++17	0 / 100	1 ms	212 KiB

Main

/*
希望全國賽不要墊底

全國賽策略：
0:00-0:15：讀題
0:15-3:00：寫掉有把握的
3:00-5:00：撈分+寫掉快好的

記得上廁所
記得吃東西
*/
#pragma GCC optimize("O3")
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pii pair<int,int>
#define f first
#define s second
#define all(x) x.begin(),x.end() 
#define _ ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);

void setIO(string s) {
    freopen((s + ".in").c_str(), "r", stdin);
    freopen((s + ".out").c_str(), "w", stdout);
}

int main() {_
    //setIO("wayne");
    int n,m;
    cin>>n>>m;
    pair<int,int> num[n];
    int ans=1e9;
    for(int i=0;i<n;i++){
        cin>>num[i].f>>num[i].s;
        ans=min(ans,max(num[i].f,num[i].s));
    }
    cout<<ans;
    return 0;
}
//maybe its multiset not set

컴파일 시 표준 에러 (stderr) 메시지

Main.cpp: In function 'void setIO(std::string)':
Main.cpp:23:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   23 |     freopen((s + ".in").c_str(), "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:24:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   24 |     freopen((s + ".out").c_str(), "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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