Submission #1176599

#	Time	Username	Problem	Language	Result	Execution time	Memory
1176599		Warinchai	Bosses (BOI16_bosses)	C++20	0 / 100	0 ms	396 KiB

bosses

#include<bits/stdc++.h>
#define int long long
using namespace std;
vector<int>adj[5005];
int vis[5005];
int32_t main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    int n;cin>>n;
    for(int i=1;i<=n;i++){
        int t;cin>>t;
        for(int i=1;i<=t;i++){
            int x;cin>>x;
            adj[x].push_back(i);
        }
    }
    int rans=LLONG_MAX;
    for(int i=1;i<=n;i++){
        for(int j=1;j<=n;j++)vis[j]=0;
        vis[i]=1;
        queue<pair<int,int>>q;
        q.push({1,i});
        int cnt=0;
        int sum=0;
        while(!q.empty()){
            int u=q.front().second;
            int d=q.front().first;
            q.pop();
            cnt++;
            for(auto x:adj[u]){
                if(vis[x])continue;
                vis[x]=1;
                q.push({d+1,x});
            }
            sum+=d;
        }
        assert(cnt<=n);
        if(cnt==n)rans=min(rans,sum);
    }
    cout<<rans;
}

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