Submission #1114685

#	Time	Username	Problem	Language	Result	Execution time	Memory
1114685		SalihSahin	Povjerenstvo (COI22_povjerenstvo)	C++14	100 / 100	228 ms	65216 KiB

Main

#include <bits/stdc++.h>
#define pb push_back
using namespace std;
 
const int N = 5e5 + 5;

vector<int> adj[N], adjrev[N];


int main(){
   ios_base::sync_with_stdio(false);
   cin.tie(0); cout.tie(0);
   int n, m;
   cin>>n>>m;
   for(int i = 0; i < m; i++){
      int u, v;
      cin>>u>>v;
      adj[u].pb(v);
      adjrev[v].pb(u);
   }

   vector<int> ans;
   vector<int> nope(n+1);
   for(int i = 1; i <= n; i++){
      if(!nope[i]){
         ans.pb(i);
         for(auto itr: adjrev[i]) nope[itr] = 1;
         for(auto itr: adj[i]) nope[itr] = 1;
      }
   }

   cout<<ans.size()<<endl;
   for(auto itr: ans){
      cout<<itr<<" ";
   }
   cout<<endl;
   return 0;
}

• Subtask 1: 13 / 13
• Subtask 2: 21 / 21
• Subtask 3: 33 / 33
• Subtask 4: 33 / 33