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  1. #include<bits/stdc++.h>
  2. #define ll long long
  3. #define fast ios_base::sync_with_stdio(0),cin.tie(0);
  4. using namespace std;
  5. const ll N=1e5,M=1e6+5;
  6.  
  7. vector<ll> g[N+5];
  8.  
  9. map<ll,map<ll,ll>> d;
  10.  
  11. int main(){
  12. fast
  13. ll n;
  14. cin>>n;
  15. for(int i=1;i<n;i++){
  16.     ll u,v;
  17.     cin>>u>>v;
  18.     g[u].push_back(v);
  19.     g[v].push_back(u);
  20. }
  21.  
  22.  
  23. return 0;
  24. }
  25.  
Success #stdin #stdout 0.01s 5892KB
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Standard output is empty
https://ideone.com/PHqiBJ
language:
C++ (gcc 8.3)
created:
8 hours ago
visibility:
public

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