Submission #1091913

#	Time	Username	Problem	Language	Result	Execution time	Memory
1091913		vjudge1	Bosses (BOI16_bosses)	C++17	0 / 100	1 ms	348 KiB

bosses

// Meow :3

#include <bits/stdc++.h>
#define int long long int

using namespace std;

const int MAXN = 5e3 + 5;

queue <int> q;

bool mark[MAXN];

vector <int> adj[MAXN];

int h[MAXN];

int ans = 0;

int cnt = 0;

void bfs(){
	while(!q.empty()){
		int v = q.front();
		q.pop();
		ans += h[v];
		cnt++;
		for(auto u : adj[v]){
			if(!mark[u]){
				h[u] = h[v] + 1;
				mark[u] = true;
				q.push(u);
			}
		}
	}
}
signed main(){
	int n;
	cin>>n;
	for(int i = 1 ; i <= n ; i++){
		int k;
		cin>>k;
		for(int j = 1 ; j <= k ; j++){
			int x;
			cin>>x;
			adj[x].push_back(i);
		}
	}
	int ANS = 1e18;
	for(int i = 1 ; i <= n ; i++){
		mark[i] = 1;
		q.push(i);
		h[i] = 1;
		bfs();
		memset(mark , 0 , sizeof mark);
		fill(h + 1 , h + n + 1 , 1);
		if(cnt == n) ANS = min(ans , ANS);
		cnt = 0;
	}
	cout<<ANS<<endl;
} 

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