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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3. vector<vector<int>> vec;
  4. int ile[1000007];
  5. int wart[1000007];
  6. int ile_ma(int x)
  7. {
  8.     int c=vec[x].size();
  9.     if(ile[x]>0)
  10.     {
  11.         return ile[x];
  12.     }
  13.     if(c==0)
  14.     {
  15.         ile[x]=wart[x];
  16.         return 1;
  17.     }
  18.     int wyn=wart[x];
  19.     for(auto a:vec[x])
  20.     {
  21.         wyn+=ile_ma(a);
  22.     }
  23.     ile[x]=wyn;
  24.     return wyn;
  25. }
  26. int main()
  27. {
  28.     ios_base::sync_with_stdio(0);
  29.     cin.tie(0);
  30.     int n;cin>>n;
  31.     if(n==1)
  32.     {
  33.         cout<<0;
  34.         return 0;
  35.     }
  36.     for(int i=0;i<n;i++)
  37.     {
  38.         vector<int> a;vec.push_back(a);
  39.     }
  40.     for(int i=2;i<=n;i++)
  41.     {
  42.         int a,b;cin>>a>>b;
  43.         vec[a].push_back(i);
  44.         wart[i]=b;
  45.     }
  46.     cout<<ile_ma(1);
  47.     for(int i=1;i<=n;i++)
  48.     {
  49.         cout<<ile[i]<<endl;
  50.     }
  51. }
  52.  
Success #stdin #stdout 0.01s 5316KB
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stdin
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6
4 4
1 10
1 1
1 3
2 1
stdout
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88
5
10
6
3
1
https://ideone.com/WjaCHA
language:
C++ (gcc 8.3)
created:
5 hours ago
visibility:
public

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