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Submission #538221

# Submission time Handle Problem Language Result Execution time Memory
538221 2022-03-16T10:37:31 Z amunduzbaev Bosses (BOI16_bosses) C++17
100 / 100
 670 ms 628 KB 
#include "bits/stdc++.h"
using namespace std;

#define ar array

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 0 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 0 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 0 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 468 KB Output is correct
13 Correct 5 ms 468 KB Output is correct
14 Correct 145 ms 468 KB Output is correct
15 Correct 29 ms 564 KB Output is correct
16 Correct 536 ms 604 KB Output is correct
17 Correct 666 ms 628 KB Output is correct
18 Correct 670 ms 620 KB Output is correct