oj.uz

Submission #446750

# Submission time Handle Problem Language Result Execution time Memory
446750 2021-07-23T08:01:41 Z prvocislo Bosses (BOI16_bosses) C++17
100 / 100
 802 ms 708 KB 
#include <bits/stdc++.h>
typedef long long ll;
using namespace std;

const int inf = 1e9 + 5;
int main()
{
    ios::sync_with_stdio(false);
    cin.tie(0);
    int n;
    cin >> n;
    vector<vector<int> > g(n);
    for (int i = 0; i < n; i++)
    {
        int d; cin >> d;
        for (int j = 0, x; j < d; j++)
        {
            cin >> x;
            g[--x].push_back(i);
        }
    }
    int ans = inf;
    for (int i = 0; i < n; i++)
    {
        queue<int> q; q.push(i);
        vector<int> d(n, inf); d[i] = 1;
        while (!q.empty())
        {
            int u = q.front(); q.pop();
            for (int v : g[u]) if (d[v] == inf) d[v] = d[u]+1, q.push(v);
        }
        if (count(d.begin(), d.end(), inf)) continue;
        int sum = 0;
        for (int j = 0; j < n; j++) sum += d[j];
        ans = min(ans, sum);
    }
    cout << ans << "\n";
    return 0;
}

Subtask #1
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct

Subtask #2
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct

Subtask #3
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 5 ms 332 KB Output is correct
13 Correct 4 ms 332 KB Output is correct
14 Correct 155 ms 544 KB Output is correct
15 Correct 35 ms 460 KB Output is correct
16 Correct 583 ms 708 KB Output is correct
17 Correct 802 ms 708 KB Output is correct
18 Correct 740 ms 708 KB Output is correct