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Submission #360163

# Submission time Handle Problem Language Result Execution time Memory
360163 2021-01-27T15:03:00 Z Pety Bosses (BOI16_bosses) C++14
100 / 100
 695 ms 768 KB 
#include <bits/stdc++.h>

using namespace std;

int n, ans, dist[5002], k, x;
vector<int>G[5002];

int main()
{
  ios_base::sync_with_stdio(false);
  cin.tie(0); cout.tie(0);
  cin >> n;
  for (int i = 1; i <= n; i++) {
    cin >> k;
    while (k--) {
      cin >> x;
      G[x].push_back(i);
    }
  }
  ans = 1e9;
  for (int i = 1; i <= n; i++) {
    memset(dist, -1, sizeof(dist));
    dist[i] = 1;
    queue<int>q;
    q.push(i);
    int cost = 0, count = 0;
    while (!q.empty()) {
      int x = q.front();
      q.pop();
      cost += dist[x];
      count++;
      for (auto it : G[x])
        if (dist[it] == -1) {
          dist[it] = dist[x] + 1;
          q.push(it);
        }
    }
    if (count == n)
      ans = min(ans, cost);
  }
  cout << ans;
  return 0;
}

Subtask #1
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 492 KB Output is correct
2 Correct 1 ms 492 KB Output is correct
3 Correct 1 ms 512 KB Output is correct
4 Correct 1 ms 492 KB Output is correct
5 Correct 1 ms 512 KB Output is correct
6 Correct 1 ms 492 KB Output is correct

Subtask #2
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 492 KB Output is correct
2 Correct 1 ms 492 KB Output is correct
3 Correct 1 ms 512 KB Output is correct
4 Correct 1 ms 492 KB Output is correct
5 Correct 1 ms 512 KB Output is correct
6 Correct 1 ms 492 KB Output is correct
7 Correct 1 ms 504 KB Output is correct
8 Correct 1 ms 492 KB Output is correct
9 Correct 1 ms 492 KB Output is correct
10 Correct 1 ms 492 KB Output is correct
11 Correct 1 ms 492 KB Output is correct

Subtask #3
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 492 KB Output is correct
2 Correct 1 ms 492 KB Output is correct
3 Correct 1 ms 512 KB Output is correct
4 Correct 1 ms 492 KB Output is correct
5 Correct 1 ms 512 KB Output is correct
6 Correct 1 ms 492 KB Output is correct
7 Correct 1 ms 504 KB Output is correct
8 Correct 1 ms 492 KB Output is correct
9 Correct 1 ms 492 KB Output is correct
10 Correct 1 ms 492 KB Output is correct
11 Correct 1 ms 492 KB Output is correct
12 Correct 6 ms 620 KB Output is correct
13 Correct 4 ms 620 KB Output is correct
14 Correct 125 ms 768 KB Output is correct
15 Correct 6 ms 620 KB Output is correct
16 Correct 545 ms 756 KB Output is correct
17 Correct 683 ms 752 KB Output is correct
18 Correct 695 ms 768 KB Output is correct