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Submission #538220

# Submission time Handle Problem Language Result Execution time Memory
538220 2022-03-16T10:37:12 Z amunduzbaev Bosses (BOI16_bosses) C++17
100 / 100
 762 ms 740 KB 
#include "bits/stdc++.h"
using namespace std;

#define ar array
#define int long long

const int N = 5005;
vector<int> edges[N];

signed main(){
	ios::sync_with_stdio(0); cin.tie(0);
	
	int n; cin>>n;
	vector<int> k(n+1);
	for(int i=1;i<=n;i++){
		cin>>k[i];
		for(int j=0;j<k[i];j++){
			int x; cin>>x;
			edges[x].push_back(i);
		}
	}
	
	int res = n * n;
	for(int i=1;i<=n;i++){
		vector<int> d(n+1, n);
		queue<int> q; q.push(i);
		d[i] = 0;
		while(!q.empty()){
			int i=q.front(); q.pop();
			for(auto x : edges[i]){
				if(d[x] > d[i] + 1){
					d[x] = d[i] + 1;
					q.push(x);
				}
			}
		}
		
		bool ok = 1;
		int rr = n;
		for(int j=1;j<=n;j++){
			if(d[j] == n) ok = 0;
			rr += d[j];
		}
		
		if(ok) res = min(res, rr);
	}
	
	cout<<res<<"\n";
}

Subtask #1
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct

Subtask #2
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct

Subtask #3
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 5 ms 596 KB Output is correct
13 Correct 4 ms 596 KB Output is correct
14 Correct 192 ms 632 KB Output is correct
15 Correct 61 ms 632 KB Output is correct
16 Correct 617 ms 740 KB Output is correct
17 Correct 762 ms 724 KB Output is correct
18 Correct 734 ms 724 KB Output is correct