Submission #223353

#	Time	Username	Problem	Language	Result	Execution time	Memory
223353		tqbfjotld	Matching (COCI20_matching)	C++14	5 / 110	5 ms	256 KiB

matching

#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);
    }
}

Compilation message (stderr)

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);
         ~~~~~^~~~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 0 / 6
• Subtask 3: 0 / 7
• Subtask 4: 0 / 40
• Subtask 5: 0 / 52