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Submission #857844

# Submission time Handle Problem Language Result Execution time Memory
857844 2023-10-07T05:24:28 Z vjudge1 Bosses (BOI16_bosses) C++17
100 / 100
 408 ms 1028 KB 
#include <bits/stdc++.h>
using namespace std;
const int mxn=5e3+5;
int n,ans[mxn],dis[mxn],sum;
vector<int>v[mxn];
int main(){
	cin>>n;
	for(int i=1;i<=n;i++){
		int k;
		cin>>k;
		for(int j=1;j<=k;j++){
			int x;
			cin>>x;
			v[x].push_back(i);
		}
	}
	int d=1e9;
	for(int i=1;i<=n;i++){
		for(int j=1;j<=n;j++)dis[j]=0;
		sum=0;
		dis[i]=1;
		queue<int>q;
		q.push(i);
		while(q.size()){
			int x=q.front();
			ans[i]+=dis[x];
			sum++;
			q.pop();
			for(auto j:v[x]){
				if(dis[j]==0)dis[j]=dis[x]+1,q.push(j);
			}
		}
		if(sum<n)ans[i]=1e9;
		
		d=min(ans[i],d);
	}
	cout<<d<<endl;
}

Subtask #1
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 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 344 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 0 ms 348 KB Output is correct
8 Correct 0 ms 552 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 604 KB Output is correct

Subtask #3
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 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 0 ms 348 KB Output is correct
8 Correct 0 ms 552 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 604 KB Output is correct
12 Correct 4 ms 604 KB Output is correct
13 Correct 3 ms 604 KB Output is correct
14 Correct 73 ms 640 KB Output is correct
15 Correct 4 ms 600 KB Output is correct
16 Correct 408 ms 768 KB Output is correct
17 Correct 385 ms 1028 KB Output is correct
18 Correct 386 ms 604 KB Output is correct