답안 #514963

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
514963	2022-01-18T23:25:16 Z	CrouchingDragon	Magic Tree (CEOI19_magictree)	C++17	100 / 100	126 ms	37860 KB

magictree

#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 sum = 0;
  for (auto [d, w] : s[0]) {
    sum += w;
  }
  std::cout << sum << '\n';
  exit(0);
}

Subtask #1
6.0 / 6.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	204 KB	Output is correct
2	Correct	0 ms	204 KB	Output is correct
3	Correct	0 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	1 ms	204 KB	Output is correct
7	Correct	0 ms	204 KB	Output is correct
8	Correct	0 ms	204 KB	Output is correct
9	Correct	1 ms	204 KB	Output is correct

Subtask #2
3.0 / 3.0

#	결과	실행 시간	메모리	Grader output
1	Correct	46 ms	18640 KB	Output is correct
2	Correct	26 ms	9232 KB	Output is correct
3	Correct	126 ms	37860 KB	Output is correct
4	Correct	65 ms	16068 KB	Output is correct
5	Correct	91 ms	20568 KB	Output is correct

Subtask #3
11.0 / 11.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	332 KB	Output is correct
2	Correct	1 ms	332 KB	Output is correct
3	Correct	1 ms	332 KB	Output is correct
4	Correct	38 ms	6112 KB	Output is correct
5	Correct	48 ms	10068 KB	Output is correct
6	Correct	41 ms	6252 KB	Output is correct

Subtask #4
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	50 ms	10704 KB	Output is correct
2	Correct	40 ms	9728 KB	Output is correct
3	Correct	41 ms	7504 KB	Output is correct
4	Correct	50 ms	12372 KB	Output is correct
5	Correct	31 ms	6092 KB	Output is correct

Subtask #5
16.0 / 16.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	204 KB	Output is correct
2	Correct	0 ms	204 KB	Output is correct
3	Correct	0 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	1 ms	204 KB	Output is correct
7	Correct	0 ms	204 KB	Output is correct
8	Correct	0 ms	204 KB	Output is correct
9	Correct	1 ms	204 KB	Output is correct
10	Correct	59 ms	15812 KB	Output is correct
11	Correct	55 ms	14084 KB	Output is correct
12	Correct	30 ms	7588 KB	Output is correct
13	Correct	29 ms	12348 KB	Output is correct
14	Correct	28 ms	6108 KB	Output is correct

Subtask #6
13.0 / 13.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	2252 KB	Output is correct
2	Correct	20 ms	9464 KB	Output is correct
3	Correct	17 ms	9456 KB	Output is correct
4	Correct	18 ms	9576 KB	Output is correct
5	Correct	15 ms	12448 KB	Output is correct
6	Correct	18 ms	9932 KB	Output is correct
7	Correct	20 ms	7372 KB	Output is correct

Subtask #7
22.0 / 22.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	204 KB	Output is correct
2	Correct	0 ms	204 KB	Output is correct
3	Correct	0 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	1 ms	204 KB	Output is correct
7	Correct	0 ms	204 KB	Output is correct
8	Correct	0 ms	204 KB	Output is correct
9	Correct	1 ms	204 KB	Output is correct
10	Correct	1 ms	332 KB	Output is correct
11	Correct	1 ms	332 KB	Output is correct
12	Correct	1 ms	332 KB	Output is correct
13	Correct	38 ms	6112 KB	Output is correct
14	Correct	48 ms	10068 KB	Output is correct
15	Correct	41 ms	6252 KB	Output is correct
16	Correct	59 ms	15812 KB	Output is correct
17	Correct	55 ms	14084 KB	Output is correct
18	Correct	30 ms	7588 KB	Output is correct
19	Correct	29 ms	12348 KB	Output is correct
20	Correct	28 ms	6108 KB	Output is correct
21	Correct	18 ms	5784 KB	Output is correct
22	Correct	55 ms	20104 KB	Output is correct
23	Correct	68 ms	24900 KB	Output is correct
24	Correct	113 ms	37720 KB	Output is correct
25	Correct	63 ms	16060 KB	Output is correct
26	Correct	78 ms	16992 KB	Output is correct
27	Correct	51 ms	10068 KB	Output is correct

Subtask #8
17.0 / 17.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	204 KB	Output is correct
2	Correct	0 ms	204 KB	Output is correct
3	Correct	0 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	1 ms	204 KB	Output is correct
7	Correct	0 ms	204 KB	Output is correct
8	Correct	0 ms	204 KB	Output is correct
9	Correct	1 ms	204 KB	Output is correct
10	Correct	46 ms	18640 KB	Output is correct
11	Correct	26 ms	9232 KB	Output is correct
12	Correct	126 ms	37860 KB	Output is correct
13	Correct	65 ms	16068 KB	Output is correct
14	Correct	91 ms	20568 KB	Output is correct
15	Correct	1 ms	332 KB	Output is correct
16	Correct	1 ms	332 KB	Output is correct
17	Correct	1 ms	332 KB	Output is correct
18	Correct	38 ms	6112 KB	Output is correct
19	Correct	48 ms	10068 KB	Output is correct
20	Correct	41 ms	6252 KB	Output is correct
21	Correct	50 ms	10704 KB	Output is correct
22	Correct	40 ms	9728 KB	Output is correct
23	Correct	41 ms	7504 KB	Output is correct
24	Correct	50 ms	12372 KB	Output is correct
25	Correct	31 ms	6092 KB	Output is correct
26	Correct	59 ms	15812 KB	Output is correct
27	Correct	55 ms	14084 KB	Output is correct
28	Correct	30 ms	7588 KB	Output is correct
29	Correct	29 ms	12348 KB	Output is correct
30	Correct	28 ms	6108 KB	Output is correct
31	Correct	4 ms	2252 KB	Output is correct
32	Correct	20 ms	9464 KB	Output is correct
33	Correct	17 ms	9456 KB	Output is correct
34	Correct	18 ms	9576 KB	Output is correct
35	Correct	15 ms	12448 KB	Output is correct
36	Correct	18 ms	9932 KB	Output is correct
37	Correct	20 ms	7372 KB	Output is correct
38	Correct	18 ms	5784 KB	Output is correct
39	Correct	55 ms	20104 KB	Output is correct
40	Correct	68 ms	24900 KB	Output is correct
41	Correct	113 ms	37720 KB	Output is correct
42	Correct	63 ms	16060 KB	Output is correct
43	Correct	78 ms	16992 KB	Output is correct
44	Correct	51 ms	10068 KB	Output is correct
45	Correct	19 ms	5268 KB	Output is correct
46	Correct	58 ms	19012 KB	Output is correct
47	Correct	69 ms	23104 KB	Output is correct
48	Correct	113 ms	32936 KB	Output is correct
49	Correct	68 ms	16052 KB	Output is correct
50	Correct	83 ms	16300 KB	Output is correct
51	Correct	57 ms	9428 KB	Output is correct

답안 #514963

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