Submission #961703

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
961703	2024-04-12 10:53:13	hirayuu_oj	Teleporters (IOI08_teleporters)	C++17	100 / 100	403 ms	56644 KiB

teleporters

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#include<bits/stdc++.h>
using namespace std;
#define rep(i,n) for(int i=0; i<n; i++)
#define all(x) x.begin(),x.end()
using ll=long long;
const ll INF=(1LL<<60)-1;
int main(){
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    int N,M;
    cin>>N>>M;
    vector<pair<int,int>> pos(N*2);
    rep(i,N){
        int W,E;
        cin>>W>>E;
        pos[i*2]={W,i};
        pos[i*2+1]={E,i};
    }
    sort(all(pos));
    vector<pair<int,int>> tel(N,{-1,-1});
    rep(i,N*2){
        if(tel[pos[i].second].first==-1){
            tel[pos[i].second].first=i;
        }
        else{
            tel[pos[i].second].second=i;
        }
    }
    vector<bool> vis(N*2,0);
 
 
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