oj.uz

Submission #969964

# Submission time Handle Problem Language Result Execution time Memory
969964 2024-04-26T02:38:16 Z vjudge1 Bosses (BOI16_bosses) C++17
67 / 100
 1500 ms 1104 KB 
/*
 * With a little appreciation, in a mostly hollow tone, she says, "Delightful." As if the world has any meaning.
 * TASK : Bossa Nova
 * AUTHOR : Marszpace
*/

#include<bits/stdc++.h>
using namespace std;

pair<int,int> dfs(vector<vector<int>>& adj, int u){
  int res1=0,res2=0;
  for(auto v:adj[u]){
    auto p=dfs(adj,v);
    res1+=p.first;
    res2+=p.second;
  }
  return {res1+res2+1,res2+1};
}

int main(){
  ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
  int n;
  cin >> n;
  vector<vector<int>> adj(n+1,vector<int>());
  for(int i=1;i<=n;i++){
    int k;
    cin >> k;
    for(int j=0;j<k;j++){
      int v;
      cin >> v;
      adj[v].push_back(i);
    }
  }

  int res=INT_MAX;
  for(int root=1;root<=n;root++){
    queue<pair<int,int>> bfs;
    vector<bool> visited(n+1,false); int cnt=0;
    vector<vector<int>> thisadj(n+1,vector<int>());

    visited[root]=true;cnt++;
    for(auto v:adj[root]){
      bfs.push({v,root});
    }
    while(!bfs.empty()){
      auto [u,p]=bfs.front();bfs.pop();
      if(visited[u]){continue;}
      visited[u]=true;cnt++;
      thisadj[p].push_back(u);
      for(auto v:adj[u]){
        if(!visited[v]){
          bfs.push({v,u});
        }
      }
    }
    if(cnt==n){
      res=min(res,dfs(thisadj,root).first);
    }
  }
  cout << res;
  return 0;
}

Subtask #1
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct

Subtask #2
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct

Subtask #3
0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 16 ms 576 KB Output is correct
13 Correct 11 ms 348 KB Output is correct
14 Correct 476 ms 944 KB Output is correct
15 Correct 81 ms 832 KB Output is correct
16 Correct 1362 ms 1104 KB Output is correct
17 Execution timed out 1552 ms 1000 KB Time limit exceeded
18 Halted 0 ms 0 KB -