Submission #223353

#TimeUTC-0UsernameProblemLanguageResultExecution timeMemory
2233532020-04-15 07:42:32tqbfjotldMatching (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);
}
}
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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);
         ~~~~~^~~~~~~~~~~~~~
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