Submission #695168

#	Time	Username	Problem	Language	Result	Execution time	Memory
695168		Ahmed57	Bosses (BOI16_bosses)	C++14	100 / 100	580 ms	580 KiB

bosses

#include <bits/stdc++.h>
//#include "game.h"
using namespace std;
vector<int> v[5001];
long long all = 0;
int main(){
    //ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
    int n;
    cin>>n;
    for(int i = 1;i<=n;i++){
        int k;
        cin>>k;
        for(int j = 0;j<k;j++){
            int x;cin>>x;
            v[x].push_back(i);
        }
    }
    long long ans = 1e18;
    for(int i = 1;i<=n;i++){
        all = 1;
        int vis[n+1] = {0};
        vis[i] = 1;
        queue<int> q;q.push(i);
        int cnt = 0;
        while(!q.empty()){
            int w = q.front();q.pop();
            cnt++;
            for(auto j:v[w]){
                if(vis[j]==0){
                    vis[j] = vis[w]+1;
                    all += vis[j];
                    q.push(j);
                }
            }
        }
        if(cnt==n){
            ans = min(ans,all);
        }
    }
    cout<<ans<<"\n";
}

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