Submission #1017772

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1017772	2024-07-09 10:05:57	ttamx	Teleporters (IOI08_teleporters)	C++17	100 / 100	291 ms	29644 KiB

teleporters

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#include<bits/stdc++.h>
using namespace std;
const int X=2e6;
int n,m;
pair<int,int> nxt[X+5];
bool vis[X+5];
int ans;
priority_queue<int> pq;
int calc(int x){
    int res=0;
    while(!vis[x]){
        vis[x]=true;
        res+=nxt[x].second;
        x=nxt[x].first;
    }
    return res;
}
int main(){
    cin.tie(nullptr)->sync_with_stdio(false);
    cin >> n >> m;
    for(int i=1;i<=X;i++)nxt[i]={i+1,0};
    for(int i=0;i<n;i++){
        int l,r;
        cin >> l >> r;
        nxt[l]={r+1,1};
 
 
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