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  1. #include<bits/stdc++.h>
  2. #include<fstream>
  3. #include<chrono>
  4. #define fi(i,a,b) for(int i=(a);i<(b);i++)
  5. #define llu  long long
  6. #define no no_nodes_at_level
  7. using namespace::std;
  8. int main()
  9. {
  10.     int n, m, i = 0, id;
  11.     llu l, y, x, u, v;
  12. //   freopen("in.txt", "r", stdin);
  13. ios::sync_with_stdio(0);
  14. cin.tie(0);
  15.     vector< pair< llu, set<llu> > > a;
  16.     cin>>n>>m;
  17.     a = vector< pair< llu, set<llu> > >(n+1);
  18.     vector<llu> coins(n+1, 0);
  19.     vector<llu> no(n+1, -1);
  20.     a[1].first = 0;
  21.     a[0].first = -1;
  22.     while(++i < n)
  23.     {
  24.         cin>>u>>v;
  25.         a[u].second.insert(v);
  26.         a[v].first = a[u].first + 1;
  27.         no[a[v].first] = no[a[v].first] + 1;
  28. //        par[v] = u;
  29.     }
  30.     llu ausi;
  31.     while(m--)
  32.     {
  33.         cin>>id;
  34.         if(id == 1)
  35.         {
  36.             cin>>l>>y;
  37.                 coins[l] = coins[l] + y;
  38.  
  39.         }
  40.         else
  41.         {
  42.             ausi = 0;
  43.             cin>>x;
  44.             set<llu> bag;
  45.             bag.insert(x);
  46.             while(!bag.empty())
  47.             {
  48.                 auto top = bag.begin();
  49.                 bag.erase(bag.begin());
  50.                 ausi += coins[a[*top].first];
  51.                 for(auto it : a[*top].second)
  52.                     bag.insert(it);
  53.             }
  54.             cout<<ausi<<endl;
  55.         }
  56.     }
  57.  return 0;
  58. }
  59.  
Success #stdin #stdout 0s 3236KB
comments (?)
stdin
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5 4
1 2
1 3
3 4
3 5
1 1 2
1 2 3
2 3
2 1
stdout
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8
10
https://ideone.com/mBet2d
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

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