Submission #725527

#	Time	Username	Problem	Language	Result	Execution time	Memory
725527		vjudge1	Schools (IZhO13_school)	C++17	0 / 100	206 ms	198220 KiB

school

#include <bits/stdc++.h>
#define F first
#define S second

using namespace std;

using ll = long long;
using PI = pair<ll, ll>;
using PII = pair<PI, ll>;

int main()
{
    freopen("school.in", "r", stdin);
    freopen("school.out", "w", stdout);

    //ios_base::sync_with_stdio(0); cin.tie(0);

    ll n, m, s; cin >> n >> m >> s;

    vector<PII> vp(n+10);
    for(ll i = 0; i < n; i++){
        cin >> vp[i].F.F >> vp[i].F.S;
        vp[i].S = i;
    }
//
    vector<PII> ord(n+10);
    for(ll i = 0; i < n; i++){
        ord[i].F.F = vp[i].F.F-vp[i].F.S;
        ord[i].F.S = vp[i].F.F;
        ord[i].S = i;
    }


    ll ans = 0;


    cout << ans <<"\n";

}

Compilation message (stderr)

school.cpp: In function 'int main()':
school.cpp:13:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   13 |     freopen("school.in", "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
school.cpp:14:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   14 |     freopen("school.out", "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 100