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Submission #528830

# Submission time Handle Problem Language Result Execution time Memory
528830 2022-02-21T14:28:09 Z Alex_tz307 Cat in a tree (BOI17_catinatree) C++17
100 / 100
 165 ms 15452 KB 
#include <bits/stdc++.h>

using namespace std;

const int kN = 2e5;
vector<int> g[kN];
int mark[kN];

void dfs(int u, int d) {
  mark[u] = d;
  for (int v : g[u]) {
    if (mark[v] < d - 1) {
      dfs(v, d - 1);
    }
  }
}

void testCase() {
  int n, d;
  cin >> n >> d;
  vector<int> dep(n);
  vector<pair<int, int>> nodes(n, {0, 0});
  for (int v = 1; v < n; ++v) {
    int u;
    cin >> u;
    g[u].emplace_back(v);
    g[v].emplace_back(u);
    dep[v] = dep[u] + 1;
    nodes[v] = {dep[v], v};
  }
  sort(nodes.begin(), nodes.end(), greater<pair<int, int>>());
  int ans = 0;
  for (auto it : nodes) {
    if (mark[it.second] == 0) {
      ans += 1;
      dfs(it.second, d);
    }
  }
  cout << ans << '\n';
}

int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(nullptr);
  int tests = 1;
  for (int tc = 0; tc < tests; ++tc) {
    testCase();
  }
  return 0;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4940 KB Output is correct
2 Correct 3 ms 4940 KB Output is correct
3 Correct 3 ms 4940 KB Output is correct
4 Correct 3 ms 4940 KB Output is correct
5 Correct 4 ms 4940 KB Output is correct
6 Correct 3 ms 4940 KB Output is correct
7 Correct 2 ms 4940 KB Output is correct
8 Correct 2 ms 4940 KB Output is correct
9 Correct 3 ms 4940 KB Output is correct
10 Correct 2 ms 4940 KB Output is correct
11 Correct 2 ms 4940 KB Output is correct
12 Correct 3 ms 4940 KB Output is correct
13 Correct 3 ms 4940 KB Output is correct
14 Correct 2 ms 4940 KB Output is correct
15 Correct 2 ms 4940 KB Output is correct
16 Correct 3 ms 4940 KB Output is correct
17 Correct 2 ms 4940 KB Output is correct
18 Correct 3 ms 4940 KB Output is correct
19 Correct 3 ms 4940 KB Output is correct
20 Correct 3 ms 4940 KB Output is correct

Subtask #2
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4940 KB Output is correct
2 Correct 3 ms 4940 KB Output is correct
3 Correct 3 ms 4940 KB Output is correct
4 Correct 3 ms 4940 KB Output is correct
5 Correct 4 ms 4940 KB Output is correct
6 Correct 3 ms 4940 KB Output is correct
7 Correct 2 ms 4940 KB Output is correct
8 Correct 2 ms 4940 KB Output is correct
9 Correct 3 ms 4940 KB Output is correct
10 Correct 2 ms 4940 KB Output is correct
11 Correct 2 ms 4940 KB Output is correct
12 Correct 3 ms 4940 KB Output is correct
13 Correct 3 ms 4940 KB Output is correct
14 Correct 2 ms 4940 KB Output is correct
15 Correct 2 ms 4940 KB Output is correct
16 Correct 3 ms 4940 KB Output is correct
17 Correct 2 ms 4940 KB Output is correct
18 Correct 3 ms 4940 KB Output is correct
19 Correct 3 ms 4940 KB Output is correct
20 Correct 3 ms 4940 KB Output is correct
21 Correct 3 ms 5068 KB Output is correct
22 Correct 4 ms 4940 KB Output is correct
23 Correct 2 ms 5036 KB Output is correct
24 Correct 2 ms 4940 KB Output is correct
25 Correct 3 ms 4940 KB Output is correct
26 Correct 3 ms 4940 KB Output is correct
27 Correct 2 ms 4940 KB Output is correct
28 Correct 3 ms 5068 KB Output is correct
29 Correct 3 ms 5068 KB Output is correct
30 Correct 3 ms 5068 KB Output is correct
31 Correct 3 ms 5068 KB Output is correct
32 Correct 3 ms 5068 KB Output is correct
33 Correct 3 ms 5068 KB Output is correct
34 Correct 3 ms 5068 KB Output is correct
35 Correct 2 ms 5068 KB Output is correct
36 Correct 3 ms 5068 KB Output is correct
37 Correct 3 ms 5068 KB Output is correct
38 Correct 3 ms 5068 KB Output is correct
39 Correct 3 ms 5068 KB Output is correct
40 Correct 3 ms 5068 KB Output is correct

Subtask #3
49.0 / 49.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4940 KB Output is correct
2 Correct 3 ms 4940 KB Output is correct
3 Correct 3 ms 4940 KB Output is correct
4 Correct 3 ms 4940 KB Output is correct
5 Correct 4 ms 4940 KB Output is correct
6 Correct 3 ms 4940 KB Output is correct
7 Correct 2 ms 4940 KB Output is correct
8 Correct 2 ms 4940 KB Output is correct
9 Correct 3 ms 4940 KB Output is correct
10 Correct 2 ms 4940 KB Output is correct
11 Correct 2 ms 4940 KB Output is correct
12 Correct 3 ms 4940 KB Output is correct
13 Correct 3 ms 4940 KB Output is correct
14 Correct 2 ms 4940 KB Output is correct
15 Correct 2 ms 4940 KB Output is correct
16 Correct 3 ms 4940 KB Output is correct
17 Correct 2 ms 4940 KB Output is correct
18 Correct 3 ms 4940 KB Output is correct
19 Correct 3 ms 4940 KB Output is correct
20 Correct 3 ms 4940 KB Output is correct
21 Correct 3 ms 5068 KB Output is correct
22 Correct 4 ms 4940 KB Output is correct
23 Correct 2 ms 5036 KB Output is correct
24 Correct 2 ms 4940 KB Output is correct
25 Correct 3 ms 4940 KB Output is correct
26 Correct 3 ms 4940 KB Output is correct
27 Correct 2 ms 4940 KB Output is correct
28 Correct 3 ms 5068 KB Output is correct
29 Correct 3 ms 5068 KB Output is correct
30 Correct 3 ms 5068 KB Output is correct
31 Correct 3 ms 5068 KB Output is correct
32 Correct 3 ms 5068 KB Output is correct
33 Correct 3 ms 5068 KB Output is correct
34 Correct 3 ms 5068 KB Output is correct
35 Correct 2 ms 5068 KB Output is correct
36 Correct 3 ms 5068 KB Output is correct
37 Correct 3 ms 5068 KB Output is correct
38 Correct 3 ms 5068 KB Output is correct
39 Correct 3 ms 5068 KB Output is correct
40 Correct 3 ms 5068 KB Output is correct
41 Correct 67 ms 14036 KB Output is correct
42 Correct 37 ms 9796 KB Output is correct
43 Correct 42 ms 9808 KB Output is correct
44 Correct 41 ms 9824 KB Output is correct
45 Correct 35 ms 9716 KB Output is correct
46 Correct 118 ms 14488 KB Output is correct
47 Correct 165 ms 14624 KB Output is correct
48 Correct 91 ms 14640 KB Output is correct
49 Correct 86 ms 14532 KB Output is correct
50 Correct 27 ms 10188 KB Output is correct
51 Correct 29 ms 10272 KB Output is correct
52 Correct 44 ms 10248 KB Output is correct
53 Correct 81 ms 15452 KB Output is correct
54 Correct 66 ms 15448 KB Output is correct
55 Correct 62 ms 15452 KB Output is correct
56 Correct 3 ms 5068 KB Output is correct
57 Correct 7 ms 5948 KB Output is correct
58 Correct 24 ms 9856 KB Output is correct
59 Correct 70 ms 14660 KB Output is correct
60 Correct 66 ms 14216 KB Output is correct
61 Correct 82 ms 13916 KB Output is correct