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Submission #952089

# Submission time Handle Problem Language Result Execution time Memory
952089 2024-03-23T05:30:36 Z Trisanu_Das Railway (BOI17_railway) C++17
23 / 100
 59 ms 81236 KB 
#include <bits/stdc++.h>
using namespace std;
int const N=10005;
int const M=2005;
vector<int> adj[N];
int cnt[N][M];
int sz[M];
vector<int> ans;
int n,m,k;
map<pair<int,int>,int> mp;
void dfs(int node,int par){
  for(auto i:adj[node])
    if(i!=par){
      dfs(i,node);
      for(int j=0;j<m;j++)
        cnt[node][j]+=cnt[i][j];
    }
  int p=0;
  for(int j=0;j<m;j++)
    if(cnt[node][j]<sz[j] && cnt[node][j]>0)
      p++;
  if(p>=k && par!=-1)
    ans.push_back(mp[{par,node}]);
}
int main(){
  cin>>n>>m>>k;
  for(int i=0;i<n-1;i++){
    int a,b;
    cin>>a>>b;
    mp[{a,b}]=i+1;
    mp[{b,a}]=i+1;
    adj[a].push_back(b);
    adj[b].push_back(a);
  }
  for(int i=0;i<m;i++){
    cin>>sz[i];
    for(int j=0;j<sz[i];j++){
      int a;
      cin>>a;
      cnt[a][i]++;
    }
  }
  dfs(1,-1);
  cout<<ans.size()<<endl;
  sort(ans.begin(),ans.end());
  for(auto i:ans)
    cout<<i<<' ';
  cout<<endl;
  return 0;
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 604 KB Output is correct
2 Correct 41 ms 80268 KB Output is correct
3 Correct 24 ms 80364 KB Output is correct
4 Correct 1 ms 604 KB Output is correct
5 Correct 1 ms 604 KB Output is correct
6 Correct 30 ms 81148 KB Output is correct
7 Correct 23 ms 80468 KB Output is correct
8 Correct 34 ms 80476 KB Output is correct
9 Correct 33 ms 80476 KB Output is correct
10 Correct 1 ms 600 KB Output is correct
11 Correct 1 ms 604 KB Output is correct
12 Correct 0 ms 604 KB Output is correct
13 Correct 1 ms 600 KB Output is correct
14 Correct 1 ms 604 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 604 KB Output is correct
2 Correct 41 ms 80268 KB Output is correct
3 Correct 24 ms 80364 KB Output is correct
4 Correct 1 ms 604 KB Output is correct
5 Correct 1 ms 604 KB Output is correct
6 Correct 30 ms 81148 KB Output is correct
7 Correct 23 ms 80468 KB Output is correct
8 Correct 34 ms 80476 KB Output is correct
9 Correct 33 ms 80476 KB Output is correct
10 Correct 1 ms 600 KB Output is correct
11 Correct 1 ms 604 KB Output is correct
12 Correct 0 ms 604 KB Output is correct
13 Correct 1 ms 600 KB Output is correct
14 Correct 1 ms 604 KB Output is correct
15 Correct 58 ms 81224 KB Output is correct
16 Correct 58 ms 80980 KB Output is correct
17 Correct 59 ms 80976 KB Output is correct
18 Correct 46 ms 80984 KB Output is correct
19 Correct 35 ms 80792 KB Output is correct
20 Correct 58 ms 81236 KB Output is correct
21 Correct 58 ms 81236 KB Output is correct
22 Correct 0 ms 800 KB Output is correct
23 Correct 25 ms 80396 KB Output is correct
24 Correct 23 ms 80220 KB Output is correct
25 Correct 1 ms 680 KB Output is correct
26 Correct 0 ms 856 KB Output is correct
27 Correct 28 ms 81124 KB Output is correct
28 Correct 23 ms 80496 KB Output is correct
29 Correct 31 ms 80328 KB Output is correct
30 Correct 37 ms 80476 KB Output is correct
31 Correct 1 ms 600 KB Output is correct
32 Correct 1 ms 604 KB Output is correct
33 Correct 1 ms 604 KB Output is correct
34 Correct 0 ms 604 KB Output is correct
35 Correct 1 ms 604 KB Output is correct

Subtask #3
0 / 7.0

# Verdict Execution time Memory Grader output
1 Runtime error 11 ms 4444 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #4
0 / 29.0

# Verdict Execution time Memory Grader output
1 Runtime error 3 ms 860 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #5
0 / 16.0

# Verdict Execution time Memory Grader output
1 Runtime error 3 ms 860 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #6
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 604 KB Output is correct
2 Correct 41 ms 80268 KB Output is correct
3 Correct 24 ms 80364 KB Output is correct
4 Correct 1 ms 604 KB Output is correct
5 Correct 1 ms 604 KB Output is correct
6 Correct 30 ms 81148 KB Output is correct
7 Correct 23 ms 80468 KB Output is correct
8 Correct 34 ms 80476 KB Output is correct
9 Correct 33 ms 80476 KB Output is correct
10 Correct 1 ms 600 KB Output is correct
11 Correct 1 ms 604 KB Output is correct
12 Correct 0 ms 604 KB Output is correct
13 Correct 1 ms 600 KB Output is correct
14 Correct 1 ms 604 KB Output is correct
15 Correct 58 ms 81224 KB Output is correct
16 Correct 58 ms 80980 KB Output is correct
17 Correct 59 ms 80976 KB Output is correct
18 Correct 46 ms 80984 KB Output is correct
19 Correct 35 ms 80792 KB Output is correct
20 Correct 58 ms 81236 KB Output is correct
21 Correct 58 ms 81236 KB Output is correct
22 Correct 0 ms 800 KB Output is correct
23 Correct 25 ms 80396 KB Output is correct
24 Correct 23 ms 80220 KB Output is correct
25 Correct 1 ms 680 KB Output is correct
26 Correct 0 ms 856 KB Output is correct
27 Correct 28 ms 81124 KB Output is correct
28 Correct 23 ms 80496 KB Output is correct
29 Correct 31 ms 80328 KB Output is correct
30 Correct 37 ms 80476 KB Output is correct
31 Correct 1 ms 600 KB Output is correct
32 Correct 1 ms 604 KB Output is correct
33 Correct 1 ms 604 KB Output is correct
34 Correct 0 ms 604 KB Output is correct
35 Correct 1 ms 604 KB Output is correct
36 Runtime error 11 ms 4444 KB Execution killed with signal 11
37 Halted 0 ms 0 KB -