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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3.  
  4. const long long MaxN = 1e5 + 5;
  5.  
  6. long long n;
  7. long long sz[MaxN];
  8. vector<long long> a[MaxN];
  9.  
  10. void input()
  11. {
  12.     cin >> n;
  13.  
  14.     for(long long i=1;i<=n-1;i++)
  15.     {
  16.         long long u,v;
  17.         cin >> u >> v;
  18.         a[u].push_back(v);
  19.         a[v].push_back(u);
  20.     }
  21. }
  22.  
  23. void dfs(long long i,long long par)
  24. {
  25.     for(long long x:a[i])
  26.     {
  27.         if(x!=par)
  28.         {
  29.             dfs(x,i);
  30.             sz[i]+=sz[x];
  31.         }
  32.     }
  33. }
  34.  
  35. void solve()
  36. {
  37.     for(long long i=1;i<=n;i++)
  38.     {
  39.         sz[i]=1;
  40.     }
  41.  
  42.     dfs(1,1);
  43.  
  44.     for(long long i=1;i<=n;i++)
  45.     {
  46.         cout << sz[i] << "\n";
  47.     }
  48. }
  49.  
  50. int main()
  51. {
  52.     ios_base::sync_with_stdio(0);
  53.     cin.tie(0);
  54.  
  55.     input();
  56.     solve();
  57. }
Success #stdin #stdout 0s 5932KB
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https://ideone.com/MvaJYL
language:
C++14 (gcc 8.3)
created:
13 hours ago
visibility:
public

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