제출 #223353

#제출 시각아이디문제언어결과실행 시간메모리
223353tqbfjotldMatching (COCI20_matching)C++14
5 / 110
5 ms256 KiB
#include <bits/stdc++.h>
using namespace std;

int main(){
    int n;
    scanf("%d",&n);
    vector<pair<pair<int,int>,int> >v;
    for (int x = 0; x<n; x++){
        int a,b;
        scanf("%d%d",&a,&b);
        v.push_back({{a,b},x});
    }
    sort(v.begin(),v.end());
    printf("DA\n");
    for (int x = 0; x<n; x+=2){
        printf("%d %d\n",v[x].second+1,v[x+1].second+1);
    }
}

컴파일 시 표준 에러 (stderr) 메시지

matching.cpp: In function 'int main()':
matching.cpp:6:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d",&n);
     ~~~~~^~~~~~~~~
matching.cpp:10:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d%d",&a,&b);
         ~~~~~^~~~~~~~~~~~~~
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