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Submission #514954

# Submission time Handle Problem Language Result Execution time Memory
514954 2022-01-18T23:14:51 Z CrouchingDragon Magic Tree (CEOI19_magictree) C++17
100 / 100
 122 ms 39388 KB 
#include <bits/stdc++.h>
int main() {
  std::ios_base::sync_with_stdio(false);
  std::cin.tie(nullptr);
  int N, M, K;
  std::cin >> N >> M >> K;
  std::vector<int> p(N);
  for (int u = 1; u < N; ++u) {
    std::cin >> p[u];
    --p[u];
  }
  std::vector<int> d(N), w(N);
  for (int j = 0; j < M; ++j) {
    int v;
    std::cin >> v;
    --v;
    std::cin >> d[v] >> w[v];
  }
  std::vector<std::map<int, int64_t>> s(N);
  for (int u = N - 1; u > 0; --u) {
    auto iter = s[u].insert({d[u], 0}).first;
    iter->second += w[u];
    ++iter;
    if (iter != s[u].end()) {
      int64_t sum = -w[u];
      while (iter != s[u].end() && iter->second + sum < 0) {
        sum += iter->second;
        iter = s[u].erase(iter);
      }
      if (iter != s[u].end()) {
        iter->second += sum;
      }
    }
    int v = p[u];
    if (s[v].size() < s[u].size()) {
      std::swap(s[v], s[u]);
    }
    for (auto [d, w] : s[u]) {
      s[v][d] += w;
    }
  }
  int64_t maxpref = 0, pref = 0;
  for (auto [d, w] : s[0]) {
    pref += w;
    maxpref = std::max(maxpref, pref);
  }
  std::cout << maxpref << '\n';
  exit(0);
}

Subtask #1
6.0 / 6.0

# 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 0 ms 288 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 308 KB Output is correct
6 Correct 0 ms 312 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 308 KB Output is correct
9 Correct 0 ms 308 KB Output is correct

Subtask #2
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 45 ms 18628 KB Output is correct
2 Correct 26 ms 9272 KB Output is correct
3 Correct 122 ms 37836 KB Output is correct
4 Correct 63 ms 16084 KB Output is correct
5 Correct 87 ms 20480 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 1 ms 308 KB Output is correct
4 Correct 33 ms 8100 KB Output is correct
5 Correct 52 ms 12108 KB Output is correct
6 Correct 43 ms 8176 KB Output is correct

Subtask #4
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 41 ms 10712 KB Output is correct
2 Correct 38 ms 11892 KB Output is correct
3 Correct 34 ms 9664 KB Output is correct
4 Correct 32 ms 14148 KB Output is correct
5 Correct 35 ms 8252 KB Output is correct

Subtask #5
16.0 / 16.0

# 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 0 ms 288 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 308 KB Output is correct
6 Correct 0 ms 312 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 308 KB Output is correct
9 Correct 0 ms 308 KB Output is correct
10 Correct 54 ms 17240 KB Output is correct
11 Correct 46 ms 15532 KB Output is correct
12 Correct 32 ms 9128 KB Output is correct
13 Correct 32 ms 13556 KB Output is correct
14 Correct 28 ms 7684 KB Output is correct

Subtask #6
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 2252 KB Output is correct
2 Correct 24 ms 10028 KB Output is correct
3 Correct 17 ms 10056 KB Output is correct
4 Correct 24 ms 10128 KB Output is correct
5 Correct 14 ms 12736 KB Output is correct
6 Correct 17 ms 10560 KB Output is correct
7 Correct 15 ms 8004 KB Output is correct

Subtask #7
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 0 ms 288 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 308 KB Output is correct
6 Correct 0 ms 312 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 308 KB Output is correct
9 Correct 0 ms 308 KB Output is correct
10 Correct 0 ms 332 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 1 ms 308 KB Output is correct
13 Correct 33 ms 8100 KB Output is correct
14 Correct 52 ms 12108 KB Output is correct
15 Correct 43 ms 8176 KB Output is correct
16 Correct 54 ms 17240 KB Output is correct
17 Correct 46 ms 15532 KB Output is correct
18 Correct 32 ms 9128 KB Output is correct
19 Correct 32 ms 13556 KB Output is correct
20 Correct 28 ms 7684 KB Output is correct
21 Correct 16 ms 6092 KB Output is correct
22 Correct 60 ms 21180 KB Output is correct
23 Correct 67 ms 26172 KB Output is correct
24 Correct 114 ms 39388 KB Output is correct
25 Correct 69 ms 17448 KB Output is correct
26 Correct 76 ms 18752 KB Output is correct
27 Correct 55 ms 11840 KB Output is correct

Subtask #8
17.0 / 17.0

# 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 0 ms 288 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 308 KB Output is correct
6 Correct 0 ms 312 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 308 KB Output is correct
9 Correct 0 ms 308 KB Output is correct
10 Correct 45 ms 18628 KB Output is correct
11 Correct 26 ms 9272 KB Output is correct
12 Correct 122 ms 37836 KB Output is correct
13 Correct 63 ms 16084 KB Output is correct
14 Correct 87 ms 20480 KB Output is correct
15 Correct 0 ms 332 KB Output is correct
16 Correct 0 ms 332 KB Output is correct
17 Correct 1 ms 308 KB Output is correct
18 Correct 33 ms 8100 KB Output is correct
19 Correct 52 ms 12108 KB Output is correct
20 Correct 43 ms 8176 KB Output is correct
21 Correct 41 ms 10712 KB Output is correct
22 Correct 38 ms 11892 KB Output is correct
23 Correct 34 ms 9664 KB Output is correct
24 Correct 32 ms 14148 KB Output is correct
25 Correct 35 ms 8252 KB Output is correct
26 Correct 54 ms 17240 KB Output is correct
27 Correct 46 ms 15532 KB Output is correct
28 Correct 32 ms 9128 KB Output is correct
29 Correct 32 ms 13556 KB Output is correct
30 Correct 28 ms 7684 KB Output is correct
31 Correct 4 ms 2252 KB Output is correct
32 Correct 24 ms 10028 KB Output is correct
33 Correct 17 ms 10056 KB Output is correct
34 Correct 24 ms 10128 KB Output is correct
35 Correct 14 ms 12736 KB Output is correct
36 Correct 17 ms 10560 KB Output is correct
37 Correct 15 ms 8004 KB Output is correct
38 Correct 16 ms 6092 KB Output is correct
39 Correct 60 ms 21180 KB Output is correct
40 Correct 67 ms 26172 KB Output is correct
41 Correct 114 ms 39388 KB Output is correct
42 Correct 69 ms 17448 KB Output is correct
43 Correct 76 ms 18752 KB Output is correct
44 Correct 55 ms 11840 KB Output is correct
45 Correct 16 ms 5692 KB Output is correct
46 Correct 59 ms 20520 KB Output is correct
47 Correct 75 ms 24620 KB Output is correct
48 Correct 100 ms 35328 KB Output is correct
49 Correct 80 ms 18168 KB Output is correct
50 Correct 83 ms 18800 KB Output is correct
51 Correct 55 ms 11844 KB Output is correct