제출 #239229

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
239229		aggu_01000101	Bosses (BOI16_bosses)	C++14	0 / 100	5 ms	384 KiB

bosses

#include <bits/stdc++.h>
#define int long long
#define INF 1000000000000000
#define lchild(i) (i*2 + 1)
#define rchild(i) (i*2 + 2)
#define mid(l, u) ((l+u)/2)
#define x(p) p.first
#define y(p) p.second
#define MOD 998244353
using namespace std;
int cost = 0;
signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
    int n;
    cin>>n;
    vector<int> children[n+1];
    for(int i =0 ;i<n;i++){
        int k;
        cin>>k;
        while(k--){
            int par;
            cin>>par;
            children[par].push_back(i+1);
        }
    }
    int ans = INF;
    for(int i = 1;i<=n;i++){
        bool chosen[n+1];
        for(int j = 0;j<=n;j++) chosen[j] = false;
        chosen[i] = true;
        queue<pair<int, int>> q;
        q.push({i, 0});
        int cnt = 1;
        while(!q.empty()){
            pair<int, int> curr = q.front();
            cost+=curr.second + 1;
            q.pop();
            for(int j: children[curr.first]){
                if(chosen[j]) continue;
                cnt++;
                chosen[j] = true;
                q.push({j, curr.second+1});
            }
        }
        if(cnt!=n) continue;
        ans = min(ans, cost);
        cost = 0;
    }
    cout<<ans<<"\n";
}

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