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Submission #967898

# Submission time Handle Problem Language Result Execution time Memory
967898 2024-04-23T04:50:48 Z PM1 Bosses (BOI16_bosses) C++17
100 / 100
 421 ms 732 KB 
#include <bits/stdc++.h>
using namespace std;
const int mxn=5e3+5;
int n,ans=1e9,mark[mxn];
vector<int>v[mxn];
int main(){
	ios::sync_with_stdio(false);
	cin.tie(0);
	cout.tie(0);
	cin>>n;
	for(int i=1;i<=n;i++){
		int k;
		cin>>k;
		while(k--){
			int x;
			cin>>x;
			v[x].push_back(i);
		}
	}
	for(int i=1;i<=n;i++){
		memset(mark,0,sizeof mark);
		int res=0;
		queue<int>q;
		mark[i]=1;
		q.push(i);
		while(!q.empty()){
			int x=q.front();
			q.pop();
			res+=mark[x];
			for(auto j:v[x]){
				if(!mark[j]){
					mark[j]=mark[x]+1;
					q.push(j);
				}
			}
		}
		int cnt=1;
		for(int j=1;j<=n;j++){
			if(mark[j]==0)
				cnt=0;
		}
		if(!cnt)
			continue;
		ans=min(res,ans);
	}
	cout<<ans;
	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 344 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 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct

Subtask #3
33.0 / 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 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 3 ms 604 KB Output is correct
13 Correct 3 ms 604 KB Output is correct
14 Correct 80 ms 648 KB Output is correct
15 Correct 13 ms 600 KB Output is correct
16 Correct 421 ms 704 KB Output is correct
17 Correct 396 ms 604 KB Output is correct
18 Correct 396 ms 732 KB Output is correct