답안 #788623

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
788623	2023-07-20T12:19:18 Z	WLZ	Magic Tree (CEOI19_magictree)	C++17	100 / 100	112 ms	37684 KB

magictree

#include <bits/stdc++.h>
using namespace std;
 
vector< vector<int> > g;
vector<int> d;
vector<long long> w;
vector< map<long long, long long> > dp;
 
void dfs(int u) {
  for (auto& v : g[u]) {
    dfs(v);
    if ((int) dp[u].size() < (int) dp[v].size()) {
      swap(dp[u], dp[v]);
    }
    for (auto& p : dp[v]) {
      dp[u][p.first] += p.second;
    }
  }
  dp[u][d[u]] += w[u];
  auto it = dp[u].upper_bound(d[u]);
  long long tmp = w[u];
  while (it != dp[u].end()) {
    if (it->second > tmp) {
      it->second -= tmp;
      break;
    }
    tmp -= it->second;
    dp[u].erase(it++);
  }
}
 
int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  int n, m, k;
  cin >> n >> m >> k;
  g.resize(n + 1);
  for (int i = 2; i <= n; i++) {
    int p;
    cin >> p;
    g[p].push_back(i);
  }
  d.assign(n + 1, 1);
  w.resize(n + 1);
  for (int i = 0; i < m; i++) {
    int v;
    cin >> v;
    cin >> d[v] >> w[v];
  }
  dp.resize(n + 1);
  dfs(1);
  long long ans = 0;
  for (auto& p : dp[1]) {
    ans += p.second;
  }
  cout << ans << '\n';
  return 0;
}

Subtask #1
6.0 / 6.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Correct	0 ms	320 KB	Output is correct
4	Correct	1 ms	212 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	1 ms	320 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct

Subtask #2
3.0 / 3.0

#	결과	실행 시간	메모리	Grader output
1	Correct	64 ms	21536 KB	Output is correct
2	Correct	34 ms	19384 KB	Output is correct
3	Correct	106 ms	37684 KB	Output is correct
4	Correct	79 ms	20892 KB	Output is correct
5	Correct	84 ms	22060 KB	Output is correct

Subtask #3
11.0 / 11.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	468 KB	Output is correct
2	Correct	1 ms	468 KB	Output is correct
3	Correct	1 ms	468 KB	Output is correct
4	Correct	39 ms	24508 KB	Output is correct
5	Correct	55 ms	28396 KB	Output is correct
6	Correct	52 ms	24556 KB	Output is correct

Subtask #4
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	42 ms	16208 KB	Output is correct
2	Correct	46 ms	15316 KB	Output is correct
3	Correct	40 ms	18740 KB	Output is correct
4	Correct	31 ms	16900 KB	Output is correct
5	Correct	36 ms	24760 KB	Output is correct

Subtask #5
16.0 / 16.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Correct	0 ms	320 KB	Output is correct
4	Correct	1 ms	212 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	1 ms	320 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	55 ms	18656 KB	Output is correct
11	Correct	44 ms	17548 KB	Output is correct
12	Correct	38 ms	18052 KB	Output is correct
13	Correct	31 ms	16276 KB	Output is correct
14	Correct	34 ms	24144 KB	Output is correct

Subtask #6
13.0 / 13.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	3156 KB	Output is correct
2	Correct	38 ms	13976 KB	Output is correct
3	Correct	25 ms	14036 KB	Output is correct
4	Correct	37 ms	14028 KB	Output is correct
5	Correct	23 ms	15408 KB	Output is correct
6	Correct	30 ms	16372 KB	Output is correct
7	Correct	23 ms	17220 KB	Output is correct

Subtask #7
22.0 / 22.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Correct	0 ms	320 KB	Output is correct
4	Correct	1 ms	212 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	1 ms	320 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	1 ms	468 KB	Output is correct
11	Correct	1 ms	468 KB	Output is correct
12	Correct	1 ms	468 KB	Output is correct
13	Correct	39 ms	24508 KB	Output is correct
14	Correct	55 ms	28396 KB	Output is correct
15	Correct	52 ms	24556 KB	Output is correct
16	Correct	55 ms	18656 KB	Output is correct
17	Correct	44 ms	17548 KB	Output is correct
18	Correct	38 ms	18052 KB	Output is correct
19	Correct	31 ms	16276 KB	Output is correct
20	Correct	34 ms	24144 KB	Output is correct
21	Correct	14 ms	5324 KB	Output is correct
22	Correct	64 ms	21456 KB	Output is correct
23	Correct	78 ms	24664 KB	Output is correct
24	Correct	95 ms	31460 KB	Output is correct
25	Correct	54 ms	20312 KB	Output is correct
26	Correct	79 ms	21568 KB	Output is correct
27	Correct	59 ms	19916 KB	Output is correct

Subtask #8
17.0 / 17.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Correct	0 ms	320 KB	Output is correct
4	Correct	1 ms	212 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	1 ms	320 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	64 ms	21536 KB	Output is correct
11	Correct	34 ms	19384 KB	Output is correct
12	Correct	106 ms	37684 KB	Output is correct
13	Correct	79 ms	20892 KB	Output is correct
14	Correct	84 ms	22060 KB	Output is correct
15	Correct	1 ms	468 KB	Output is correct
16	Correct	1 ms	468 KB	Output is correct
17	Correct	1 ms	468 KB	Output is correct
18	Correct	39 ms	24508 KB	Output is correct
19	Correct	55 ms	28396 KB	Output is correct
20	Correct	52 ms	24556 KB	Output is correct
21	Correct	42 ms	16208 KB	Output is correct
22	Correct	46 ms	15316 KB	Output is correct
23	Correct	40 ms	18740 KB	Output is correct
24	Correct	31 ms	16900 KB	Output is correct
25	Correct	36 ms	24760 KB	Output is correct
26	Correct	55 ms	18656 KB	Output is correct
27	Correct	44 ms	17548 KB	Output is correct
28	Correct	38 ms	18052 KB	Output is correct
29	Correct	31 ms	16276 KB	Output is correct
30	Correct	34 ms	24144 KB	Output is correct
31	Correct	5 ms	3156 KB	Output is correct
32	Correct	38 ms	13976 KB	Output is correct
33	Correct	25 ms	14036 KB	Output is correct
34	Correct	37 ms	14028 KB	Output is correct
35	Correct	23 ms	15408 KB	Output is correct
36	Correct	30 ms	16372 KB	Output is correct
37	Correct	23 ms	17220 KB	Output is correct
38	Correct	14 ms	5324 KB	Output is correct
39	Correct	64 ms	21456 KB	Output is correct
40	Correct	78 ms	24664 KB	Output is correct
41	Correct	95 ms	31460 KB	Output is correct
42	Correct	54 ms	20312 KB	Output is correct
43	Correct	79 ms	21568 KB	Output is correct
44	Correct	59 ms	19916 KB	Output is correct
45	Correct	15 ms	5708 KB	Output is correct
46	Correct	66 ms	22496 KB	Output is correct
47	Correct	83 ms	25920 KB	Output is correct
48	Correct	112 ms	34520 KB	Output is correct
49	Correct	60 ms	21008 KB	Output is correct
50	Correct	71 ms	22512 KB	Output is correct
51	Correct	65 ms	20904 KB	Output is correct

답안 #788623

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