Submission #740272

#TimeUTC-0UsernameProblemLanguageResultExecution timeMemory
7402722023-05-12 09:11:46Ahmed57Teleporters (IOI08_teleporters)C++17
100 / 100
479 ms56312 KiB
#include <bits/stdc++.h>
using namespace std;
int tele[2000005];
int le[2000005];
bool vis[2000005];
int ans = 0;bool ss = 0;
void dfs(int i){
ans++;vis[i] = 1;
if(tele[i]==0){ss = 1;return ;}
if(!vis[tele[i]])dfs(tele[i]);
}
int main(){
ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
int n,m;
cin>>n>>m;
priority_queue<int> q;
vector<pair<int,int>> v;
vector<pair<int,int>> te;
for(int i = 0;i<n;i++){
int a,b;cin>>a>>b;
v.push_back({a,b});v.push_back({b,a});
}
sort(v.begin(),v.end());
for(int i = 0;i<v.size();i++){
le[v[i].first] = i+1;
}
for(int i = 0;i<v.size();i++){
tele[i+1] = le[v[i].second]+1;
}
 
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Compilation message (stderr)

teleporters.cpp: In function 'int main()':
teleporters.cpp:25:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   25 |     for(int i = 0;i<v.size();i++){
      |                   ~^~~~~~~~~
teleporters.cpp:28:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   28 |     for(int i = 0;i<v.size();i++){
      |                   ~^~~~~~~~~
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