Submission #701584

#TimeUTC-0UsernameProblemLanguageResultExecution timeMemory
7015842023-02-21 14:17:53PCTprobabilityRoads (CEOI20_roads)C++17
0 / 100
0 ms212 KiB
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
const ll mod = 1000000007;
#define fi first
#define se second
#define pb push_back
#define sor(a) sort(a.begin(),a.end())
int main(){
ll n;
cin>>n;
map<ll,vector<pair<ll,ll>>> m;
for(int i=0;i<n;i++){
ll a,b,c,d;
cin>>a>>b>>c>>d;
if(b>d) swap(b,d);
m[a].pb({b,d});
}
vector<pair<ll,vector<pair<ll,ll>>>> d;
for(auto e:m){
sor(e.se);
d.pb({e.fi,e.se});
for(int i=0;i+1<e.se.size();i++){
cout<<e.fi<<" "<<e.se[i].se<<" "<<e.fi<<" "<<e.se[i+1].fi<<endl;
}
}
sor(d);
for(int i=0;i+1<d.size();i++){
cout<<d[i].fi<<" "<<d[i].se.back().se<<" "<<d[i+1].fi<<" "<<d[i].se[0].fi<<endl;
}
 
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Compilation message (stderr)

roads.cpp: In function 'int main()':
roads.cpp:23:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   23 |     for(int i=0;i+1<e.se.size();i++){
      |                 ~~~^~~~~~~~~~~~
roads.cpp:28:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, std::vector<std::pair<long long int, long long int> > > >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   28 |   for(int i=0;i+1<d.size();i++){
      |               ~~~^~~~~~~~~
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