답안 #514966

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
514966	2022-01-18T23:32:29 Z	CrouchingDragon	Magic Tree (CEOI19_magictree)	C++17	100 / 100	121 ms	37844 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	0 ms	204 KB	Output is correct
6	Correct	1 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	0 ms	204 KB	Output is correct

Subtask #2
3.0 / 3.0

#	결과	실행 시간	메모리	Grader output
1	Correct	44 ms	18628 KB	Output is correct
2	Correct	24 ms	9292 KB	Output is correct
3	Correct	121 ms	37844 KB	Output is correct
4	Correct	65 ms	16132 KB	Output is correct
5	Correct	95 ms	20552 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	33 ms	6100 KB	Output is correct
5	Correct	48 ms	10052 KB	Output is correct
6	Correct	41 ms	6232 KB	Output is correct

Subtask #4
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	41 ms	10692 KB	Output is correct
2	Correct	38 ms	9684 KB	Output is correct
3	Correct	33 ms	7508 KB	Output is correct
4	Correct	33 ms	12356 KB	Output is correct
5	Correct	41 ms	6164 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	0 ms	204 KB	Output is correct
6	Correct	1 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	0 ms	204 KB	Output is correct
10	Correct	60 ms	15788 KB	Output is correct
11	Correct	44 ms	14072 KB	Output is correct
12	Correct	32 ms	7600 KB	Output is correct
13	Correct	30 ms	12380 KB	Output is correct
14	Correct	27 ms	6108 KB	Output is correct

Subtask #6
13.0 / 13.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	2292 KB	Output is correct
2	Correct	16 ms	9468 KB	Output is correct
3	Correct	23 ms	9420 KB	Output is correct
4	Correct	17 ms	9612 KB	Output is correct
5	Correct	17 ms	12492 KB	Output is correct
6	Correct	17 ms	10000 KB	Output is correct
7	Correct	21 ms	7364 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	0 ms	204 KB	Output is correct
6	Correct	1 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	0 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	33 ms	6100 KB	Output is correct
14	Correct	48 ms	10052 KB	Output is correct
15	Correct	41 ms	6232 KB	Output is correct
16	Correct	60 ms	15788 KB	Output is correct
17	Correct	44 ms	14072 KB	Output is correct
18	Correct	32 ms	7600 KB	Output is correct
19	Correct	30 ms	12380 KB	Output is correct
20	Correct	27 ms	6108 KB	Output is correct
21	Correct	15 ms	5740 KB	Output is correct
22	Correct	56 ms	20072 KB	Output is correct
23	Correct	65 ms	24900 KB	Output is correct
24	Correct	120 ms	37592 KB	Output is correct
25	Correct	59 ms	16088 KB	Output is correct
26	Correct	78 ms	17120 KB	Output is correct
27	Correct	51 ms	9980 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	0 ms	204 KB	Output is correct
6	Correct	1 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	0 ms	204 KB	Output is correct
10	Correct	44 ms	18628 KB	Output is correct
11	Correct	24 ms	9292 KB	Output is correct
12	Correct	121 ms	37844 KB	Output is correct
13	Correct	65 ms	16132 KB	Output is correct
14	Correct	95 ms	20552 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	33 ms	6100 KB	Output is correct
19	Correct	48 ms	10052 KB	Output is correct
20	Correct	41 ms	6232 KB	Output is correct
21	Correct	41 ms	10692 KB	Output is correct
22	Correct	38 ms	9684 KB	Output is correct
23	Correct	33 ms	7508 KB	Output is correct
24	Correct	33 ms	12356 KB	Output is correct
25	Correct	41 ms	6164 KB	Output is correct
26	Correct	60 ms	15788 KB	Output is correct
27	Correct	44 ms	14072 KB	Output is correct
28	Correct	32 ms	7600 KB	Output is correct
29	Correct	30 ms	12380 KB	Output is correct
30	Correct	27 ms	6108 KB	Output is correct
31	Correct	4 ms	2292 KB	Output is correct
32	Correct	16 ms	9468 KB	Output is correct
33	Correct	23 ms	9420 KB	Output is correct
34	Correct	17 ms	9612 KB	Output is correct
35	Correct	17 ms	12492 KB	Output is correct
36	Correct	17 ms	10000 KB	Output is correct
37	Correct	21 ms	7364 KB	Output is correct
38	Correct	15 ms	5740 KB	Output is correct
39	Correct	56 ms	20072 KB	Output is correct
40	Correct	65 ms	24900 KB	Output is correct
41	Correct	120 ms	37592 KB	Output is correct
42	Correct	59 ms	16088 KB	Output is correct
43	Correct	78 ms	17120 KB	Output is correct
44	Correct	51 ms	9980 KB	Output is correct
45	Correct	15 ms	5288 KB	Output is correct
46	Correct	63 ms	19092 KB	Output is correct
47	Correct	63 ms	23108 KB	Output is correct
48	Correct	104 ms	32876 KB	Output is correct
49	Correct	64 ms	16088 KB	Output is correct
50	Correct	86 ms	16276 KB	Output is correct
51	Correct	53 ms	9412 KB	Output is correct

답안 #514966

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