Submission #1278134

#	Time	Username	Problem	Language	Result	Execution time	Memory
1278134		hoangtien69	Bosses (BOI16_bosses)	C++20	100 / 100	360 ms	728 KiB

bosses

#include<bits/stdc++.h>
using namespace std;
const int MAXN = 5005;

int n;
vector<int> adj[MAXN];
int d[MAXN];
int res = INT_MAX;

int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

    cin >> n;
    for (int i = 1; i <= n; i++)
    {
        int k;
        cin >> k;
        while(k--)
        {
            int x;
            cin >> x;
            adj[x].push_back(i);
        }
    }
    for (int i = 1; i <= n; i++)
    {
        memset(d, 0, sizeof d);
        queue<int> q;
        q.push(i);
        d[i] = 1;
        int cur = 0;
        int dem = 0;
        while(!q.empty())
        {
            int u = q.front();
            q.pop();
            cur += d[u];
            dem++;
            for (int v : adj[u])
            {
                if (d[v] == 0)
                {
                    d[v] = d[u] + 1;
                    q.push(v);
                }
            }
        }
        if (dem < n)
        {
            continue;
        }
        res = min(res, cur);
    }
    cout << res;
}

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