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Submission #788623

# Submission time Handle Problem Language Result Execution time Memory
788623 2023-07-20T12:19:18 Z WLZ Magic Tree (CEOI19_magictree) C++17
100 / 100
 112 ms 37684 KB 
#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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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