Submission #1249298

#	Time	Username	Problem	Language	Result	Execution time	Memory
1249298		ducksaysquack	Bosses (BOI16_bosses)	C++20	0 / 100	0 ms	328 KiB

bosses

#include <bits/stdc++.h>
#define f first
#define s second
using namespace std;
signed main() {
	int n; cin >> n;
	vector<vector<int>> v(n); pair<int,int> p = {0,0};
	for(int i=0;i<n;i++) {
		int t; cin >> t; 
		for(int j=0;j<t;j++) {int y; cin >> y; v[y-1].push_back(i);}
	}
	int ans = 1e9;
	for(int i=0;i<n;i++) {
		queue<pair<int,int>> q; q.push({i,1});
		vector<bool> w(n); int c = 0;
		while(!q.empty()) {
			pair<int,int> a = q.front(); q.pop();
			if(w[a.f]) continue;
			c += a.s, w[a.f] = true;
			for(auto i:v[a.f]) if(!w[i]) q.push({i,a.s+1});
			//cout << a.f << ' ' << a.s << ' ' << '\n';
		}
		ans = min(ans, c);
	}
	cout << ans;
}

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