제출 #1228724

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1228724		khoingu	Art Exhibition (JOI18_art)	C++20	0 / 100	0 ms	320 KiB

art

#include <bits/stdc++.h>
#define ll long long
#define int long long
#define fi(i,a,b) for(int i = a; i <= b; i ++)
#define fi   first
#define se   second
using namespace std;
const long long maxN = 5e5 + 5;

int n;
vector <pair<int, int>> a;

signed main() {
    if (fopen("task.inp", "r")) {
        freopen("task.inp", "r", stdin);
        freopen("task.out", "w", stdout);
    }
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cin >> n;
    for(int i = 0; i < n; i ++) {
        int x, y; cin >> x >> y;
        a.push_back({x, y});
    }
    sort(a.begin(), a.end());
    cout << a[0].se + a[1].se - a[1].fi + a[0].fi;
}

컴파일 시 표준 에러 (stderr) 메시지

art.cpp:5: warning: "fi" redefined
    5 | #define fi   first
      | 
art.cpp:4: note: this is the location of the previous definition
    4 | #define fi(i,a,b) for(int i = a; i <= b; i ++)
      | 
art.cpp: In function 'int main()':
art.cpp:15:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   15 |         freopen("task.inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
art.cpp:16:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   16 |         freopen("task.out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 10
• Subtask 2: 0 / 20
• Subtask 3: 0 / 20
• Subtask 4: 0 / 50