Submission #723773

#	Time	Username	Problem	Language	Result	Execution time	Memory
723773		yahyobekabdunazarov	Bosses (BOI16_bosses)	C++17	0 / 100	1 ms	212 KiB

bosses

#include <bits/stdc++.h>
#define int long long
using namespace std;
signed main(){ 
	int n;
	cin >> n;
	vector<int> adj[n + 1];
	for(int i = 0; i < n; i++){
		int x; cin >> x;
		for(int j = 0; j < x; j++){
			int a;
			cin >> a;
			adj[a].push_back(i + 1);
		}
	}
	int mn = INT_MAX;
	for(int i = 1; i <= n; i++){
		vector<int> used(n + 1), d(n + 1, 1), p(n + 1);
		queue<int> q;
		q.push(i);
		used[i] = 1;
		p[i] = -1;
		while(!q.empty()){
			int v = q.front();
			q.pop();
			for(int u: adj[v]){
				if(!used[u]){
					used[u] = true;
					q.push(u);
					d[u] = d[v] + 1;
					p[u] = v;
				}
			}
		}
		int sum = 0;
		for(int i = 1; i <= n; i++){
			sum += d[i];
		}
		for(int i = 1; i <= n; i++){
			if(!used[i]) continue;
		}
		mn = min(sum, mn);
		fill(used.begin(), used.end(), 0);
	}
	cout << mn;
	return 0;
}

• Subtask 1: 0 / 22
• Subtask 2: 0 / 45
• Subtask 3: 0 / 33