Submission #900653

#	Time	Username	Problem	Language	Result	Execution time	Memory
900653		3laa	Roads (CEOI20_roads)	C++14	15 / 100	25 ms	2052 KiB

roads

#define fast ios_base::sync_with_stdio(0),cin.tie(0),cout.tie(0)
#include <bits/stdc++.h>
#include <unordered_map>
#define endl '\n'
#define mid ((l+r)/2)
#define  F first
#define  S second
#define pb push_back
#define yes void (cout<<"YES"<<endl)
#define no void (cout<<"NO"<<endl)
#define ump unordered_map <ll,ll>
#define sp " "
#define vll vector<ll>
#define vint vector<int>
#define pll pair<ll,ll>
typedef long long ll;
using namespace std;
const ll inf=1e18+9;
const ll M=1e9+7;
ll n;
int main(){
    cin>>n;
    vector< pair <ll,pair<ll,ll> > > v;
    for(ll i=0 ; i<n ; i++){
        pll x,y;
        cin>>x.F>>x.S>>y.F>>y.S;
        v.pb({x.F,{max(x.S,y.S),min(x.S,y.S)}});
    }
    sort(v.begin(),v.end());
    for(ll i=0 ; i<v.size()-1 ; i++){
        if(v[i].F!=v[i+1].F){
            cout<<v[i].F<<sp<<(v[i].S).F<<sp;
            cout<<v[i+1].F<<sp<<(v[i+1].S).F<<endl;
        }
        else{
            if((v[i].S).F<(v[i+1].S).S){
                cout<<v[i].F<<sp<<(v[i].S).F<<sp;
                cout<<v[i+1].F<<sp<<(v[i+1].S).S<<endl;;
            }
            else{
                cout<<v[i].F<<sp<<(v[i].S).S<<sp;
                cout<<v[i+1].F<<sp<<(v[i+1].S).F<<endl;
            }
        }
    }
}

Compilation message (stderr)

roads.cpp: In function 'int main()':
roads.cpp:30:19: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<std::pair<long long int, std::pair<long long int, long long int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   30 |     for(ll i=0 ; i<v.size()-1 ; i++){
      |                  ~^~~~~~~~~~~

• Subtask 1: 0 / 0
• Subtask 2: 15 / 15
• Subtask 3: 0 / 15
• Subtask 4: 0 / 15
• Subtask 5: 0 / 15
• Subtask 6: 0 / 40