Submission #1091827

#	Time	Username	Problem	Language	Result	Execution time	Memory
1091827		vjudge1	Bosses (BOI16_bosses)	C++17	0 / 100	0 ms	348 KiB

bosses

#include <bits/stdc++.h>

#define int long long
#define pb push_back

using namespace std;

const int maxn = 5000 + 10;

int n, h[maxn];
bool mark[maxn];
vector <int> adj[maxn];
queue <int> q;

int32_t main (){
	ios_base::sync_with_stdio(0);
	cin >> n;
	for (int x, i = 1; i <= n; i++){
		cin >> x;
		for (int y, j = 0; j < x; j++)
			cin >> y,
			adj[y].pb(i);
	}
	int ans = 1e17;
	for (int i = 1; i <= n; i++){
		q.push(i), mark[i] = 1, h[i] = 1;
		int tmp = 0;
		while (q.size()){
			int v = q.front(); q.pop();
			tmp += h[v];
			for (auto u : adj[v]){
				if (!mark[u]){
					h[u] = h[v] + 1;
					q.push(u);
					mark[u] = 1;
				}
			}
		}
		ans = min(ans, tmp);
	}
	cout << ans;
}

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