Submission #514968

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
514968	2022-01-18T23:34:32 Z	CrouchingDragon	Magic Tree (CEOI19_magictree)	C++17	100 / 100	124 ms	37756 KB

magictree

#include <bits/stdc++.h>
using namespace std;
int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(nullptr);
  int N, M, K;
  cin >> N >> M >> K;
  vector<int> p(N);
  for (int u = 1; u < N; ++u) {
    cin >> p[u];
    --p[u];
  }
  vector<int> d(N), w(N);
  for (int j = 0; j < M; ++j) {
    int v;
    cin >> v;
    --v;
    cin >> d[v] >> w[v];
  }
  vector<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;
    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()) {
      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;
  }
  cout << sum << '\n';
  exit(0);
}

Subtask #1
6.0 / 6.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	236 KB	Output is correct
2	Correct	0 ms	204 KB	Output is correct
3	Correct	1 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	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

#	Verdict	Execution time	Memory	Grader output
1	Correct	49 ms	18728 KB	Output is correct
2	Correct	25 ms	9292 KB	Output is correct
3	Correct	124 ms	37756 KB	Output is correct
4	Correct	70 ms	16088 KB	Output is correct
5	Correct	82 ms	20412 KB	Output is correct

Subtask #3
11.0 / 11.0

#	Verdict	Execution time	Memory	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	35 ms	6116 KB	Output is correct
5	Correct	73 ms	10076 KB	Output is correct
6	Correct	48 ms	6348 KB	Output is correct

Subtask #4
12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	49 ms	10752 KB	Output is correct
2	Correct	40 ms	9664 KB	Output is correct
3	Correct	33 ms	7572 KB	Output is correct
4	Correct	33 ms	12336 KB	Output is correct
5	Correct	30 ms	6100 KB	Output is correct

Subtask #5
16.0 / 16.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	236 KB	Output is correct
2	Correct	0 ms	204 KB	Output is correct
3	Correct	1 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	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	52 ms	15812 KB	Output is correct
11	Correct	49 ms	14188 KB	Output is correct
12	Correct	54 ms	7628 KB	Output is correct
13	Correct	54 ms	12356 KB	Output is correct
14	Correct	28 ms	6112 KB	Output is correct

Subtask #6
13.0 / 13.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	2252 KB	Output is correct
2	Correct	18 ms	9436 KB	Output is correct
3	Correct	24 ms	9408 KB	Output is correct
4	Correct	16 ms	9548 KB	Output is correct
5	Correct	21 ms	12492 KB	Output is correct
6	Correct	18 ms	10044 KB	Output is correct
7	Correct	20 ms	7368 KB	Output is correct

Subtask #7
22.0 / 22.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	236 KB	Output is correct
2	Correct	0 ms	204 KB	Output is correct
3	Correct	1 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	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	35 ms	6116 KB	Output is correct
14	Correct	73 ms	10076 KB	Output is correct
15	Correct	48 ms	6348 KB	Output is correct
16	Correct	52 ms	15812 KB	Output is correct
17	Correct	49 ms	14188 KB	Output is correct
18	Correct	54 ms	7628 KB	Output is correct
19	Correct	54 ms	12356 KB	Output is correct
20	Correct	28 ms	6112 KB	Output is correct
21	Correct	20 ms	5708 KB	Output is correct
22	Correct	69 ms	20092 KB	Output is correct
23	Correct	94 ms	24932 KB	Output is correct
24	Correct	111 ms	37584 KB	Output is correct
25	Correct	58 ms	16052 KB	Output is correct
26	Correct	77 ms	16960 KB	Output is correct
27	Correct	55 ms	10080 KB	Output is correct

Subtask #8
17.0 / 17.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	236 KB	Output is correct
2	Correct	0 ms	204 KB	Output is correct
3	Correct	1 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	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	49 ms	18728 KB	Output is correct
11	Correct	25 ms	9292 KB	Output is correct
12	Correct	124 ms	37756 KB	Output is correct
13	Correct	70 ms	16088 KB	Output is correct
14	Correct	82 ms	20412 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	35 ms	6116 KB	Output is correct
19	Correct	73 ms	10076 KB	Output is correct
20	Correct	48 ms	6348 KB	Output is correct
21	Correct	49 ms	10752 KB	Output is correct
22	Correct	40 ms	9664 KB	Output is correct
23	Correct	33 ms	7572 KB	Output is correct
24	Correct	33 ms	12336 KB	Output is correct
25	Correct	30 ms	6100 KB	Output is correct
26	Correct	52 ms	15812 KB	Output is correct
27	Correct	49 ms	14188 KB	Output is correct
28	Correct	54 ms	7628 KB	Output is correct
29	Correct	54 ms	12356 KB	Output is correct
30	Correct	28 ms	6112 KB	Output is correct
31	Correct	5 ms	2252 KB	Output is correct
32	Correct	18 ms	9436 KB	Output is correct
33	Correct	24 ms	9408 KB	Output is correct
34	Correct	16 ms	9548 KB	Output is correct
35	Correct	21 ms	12492 KB	Output is correct
36	Correct	18 ms	10044 KB	Output is correct
37	Correct	20 ms	7368 KB	Output is correct
38	Correct	20 ms	5708 KB	Output is correct
39	Correct	69 ms	20092 KB	Output is correct
40	Correct	94 ms	24932 KB	Output is correct
41	Correct	111 ms	37584 KB	Output is correct
42	Correct	58 ms	16052 KB	Output is correct
43	Correct	77 ms	16960 KB	Output is correct
44	Correct	55 ms	10080 KB	Output is correct
45	Correct	23 ms	5268 KB	Output is correct
46	Correct	60 ms	19088 KB	Output is correct
47	Correct	64 ms	23132 KB	Output is correct
48	Correct	104 ms	32816 KB	Output is correct
49	Correct	66 ms	16132 KB	Output is correct
50	Correct	75 ms	16336 KB	Output is correct
51	Correct	56 ms	9416 KB	Output is correct

Submission #514968

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