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Submission #896791

# Submission time Handle Problem Language Result Execution time Memory
896791 2024-01-02T07:08:53 Z math_rabbit_1028 Magic Tree (CEOI19_magictree) C++14
100 / 100
 103 ms 35500 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
int n, m, k, par[101010];
pii arr[101010];
vector<int> adj[101010];
map<int, ll> dp[101010];

void solve(int v) {
    for (int i = 0; i < adj[v].size(); i++) {
        int u = adj[v][i];
        solve(u);
        if (dp[v].size() < dp[u].size()) swap(dp[v], dp[u]);
        for (auto iter = dp[u].begin(); iter != dp[u].end(); iter++) {
            dp[v][iter->first] += iter->second;
        }
    }

    dp[v][arr[v].first] += arr[v].second;
    auto iter = dp[v].upper_bound(arr[v].first);
    while (iter != dp[v].end() && arr[v].second > 0) {
        if (iter->second > arr[v].second) {
            iter->second -= arr[v].second;
            arr[v].second = 0;
        }
        else {
            arr[v].second -= iter->second;
            iter = dp[v].erase(iter);
        }
    }
}

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(0);

    cin >> n >> m >> k;
    for (int i = 2; i <= n; i++) {
        cin >> par[i];
        adj[par[i]].push_back(i);
    }
    for (int i = 1; i <= m; i++) {
        int v, d, w;
        cin >> v >> d >> w;
        arr[v] = {d, w};
    }

    solve(1);

    ll ans = 0;
    for (auto iter = dp[1].begin(); iter != dp[1].end(); iter++) {
        ans += iter->second;
    }

    cout << ans << "\n";

    return 0;
}

Compilation message

magictree.cpp: In function 'void solve(int)':
magictree.cpp:11:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   11 |     for (int i = 0; i < adj[v].size(); i++) {
      |                     ~~^~~~~~~~~~~~~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 7512 KB Output is correct
2 Correct 2 ms 7516 KB Output is correct
3 Correct 2 ms 7516 KB Output is correct
4 Correct 3 ms 7512 KB Output is correct
5 Correct 2 ms 7516 KB Output is correct
6 Correct 2 ms 7516 KB Output is correct
7 Correct 2 ms 7580 KB Output is correct
8 Correct 2 ms 7512 KB Output is correct
9 Correct 2 ms 7512 KB Output is correct

Subtask #2
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 52 ms 20676 KB Output is correct
2 Correct 31 ms 18524 KB Output is correct
3 Correct 103 ms 35500 KB Output is correct
4 Correct 55 ms 18896 KB Output is correct
5 Correct 85 ms 20360 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 7516 KB Output is correct
2 Correct 2 ms 7516 KB Output is correct
3 Correct 3 ms 7776 KB Output is correct
4 Correct 42 ms 26352 KB Output is correct
5 Correct 56 ms 30036 KB Output is correct
6 Correct 50 ms 26116 KB Output is correct

Subtask #4
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 40 ms 14672 KB Output is correct
2 Correct 36 ms 13916 KB Output is correct
3 Correct 42 ms 17516 KB Output is correct
4 Correct 29 ms 15320 KB Output is correct
5 Correct 35 ms 24348 KB Output is correct

Subtask #5
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 7512 KB Output is correct
2 Correct 2 ms 7516 KB Output is correct
3 Correct 2 ms 7516 KB Output is correct
4 Correct 3 ms 7512 KB Output is correct
5 Correct 2 ms 7516 KB Output is correct
6 Correct 2 ms 7516 KB Output is correct
7 Correct 2 ms 7580 KB Output is correct
8 Correct 2 ms 7512 KB Output is correct
9 Correct 2 ms 7512 KB Output is correct
10 Correct 48 ms 17492 KB Output is correct
11 Correct 46 ms 18000 KB Output is correct
12 Correct 35 ms 18852 KB Output is correct
13 Correct 32 ms 16528 KB Output is correct
14 Correct 36 ms 25688 KB Output is correct

Subtask #6
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 8796 KB Output is correct
2 Correct 23 ms 13996 KB Output is correct
3 Correct 24 ms 14172 KB Output is correct
4 Correct 23 ms 14464 KB Output is correct
5 Correct 14 ms 15580 KB Output is correct
6 Correct 24 ms 16912 KB Output is correct
7 Correct 21 ms 18012 KB Output is correct

Subtask #7
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 7512 KB Output is correct
2 Correct 2 ms 7516 KB Output is correct
3 Correct 2 ms 7516 KB Output is correct
4 Correct 3 ms 7512 KB Output is correct
5 Correct 2 ms 7516 KB Output is correct
6 Correct 2 ms 7516 KB Output is correct
7 Correct 2 ms 7580 KB Output is correct
8 Correct 2 ms 7512 KB Output is correct
9 Correct 2 ms 7512 KB Output is correct
10 Correct 2 ms 7516 KB Output is correct
11 Correct 2 ms 7516 KB Output is correct
12 Correct 3 ms 7776 KB Output is correct
13 Correct 42 ms 26352 KB Output is correct
14 Correct 56 ms 30036 KB Output is correct
15 Correct 50 ms 26116 KB Output is correct
16 Correct 48 ms 17492 KB Output is correct
17 Correct 46 ms 18000 KB Output is correct
18 Correct 35 ms 18852 KB Output is correct
19 Correct 32 ms 16528 KB Output is correct
20 Correct 36 ms 25688 KB Output is correct
21 Correct 14 ms 11100 KB Output is correct
22 Correct 58 ms 21968 KB Output is correct
23 Correct 68 ms 24852 KB Output is correct
24 Correct 94 ms 31684 KB Output is correct
25 Correct 59 ms 20360 KB Output is correct
26 Correct 73 ms 22232 KB Output is correct
27 Correct 59 ms 20724 KB Output is correct

Subtask #8
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 7512 KB Output is correct
2 Correct 2 ms 7516 KB Output is correct
3 Correct 2 ms 7516 KB Output is correct
4 Correct 3 ms 7512 KB Output is correct
5 Correct 2 ms 7516 KB Output is correct
6 Correct 2 ms 7516 KB Output is correct
7 Correct 2 ms 7580 KB Output is correct
8 Correct 2 ms 7512 KB Output is correct
9 Correct 2 ms 7512 KB Output is correct
10 Correct 52 ms 20676 KB Output is correct
11 Correct 31 ms 18524 KB Output is correct
12 Correct 103 ms 35500 KB Output is correct
13 Correct 55 ms 18896 KB Output is correct
14 Correct 85 ms 20360 KB Output is correct
15 Correct 2 ms 7516 KB Output is correct
16 Correct 2 ms 7516 KB Output is correct
17 Correct 3 ms 7776 KB Output is correct
18 Correct 42 ms 26352 KB Output is correct
19 Correct 56 ms 30036 KB Output is correct
20 Correct 50 ms 26116 KB Output is correct
21 Correct 40 ms 14672 KB Output is correct
22 Correct 36 ms 13916 KB Output is correct
23 Correct 42 ms 17516 KB Output is correct
24 Correct 29 ms 15320 KB Output is correct
25 Correct 35 ms 24348 KB Output is correct
26 Correct 48 ms 17492 KB Output is correct
27 Correct 46 ms 18000 KB Output is correct
28 Correct 35 ms 18852 KB Output is correct
29 Correct 32 ms 16528 KB Output is correct
30 Correct 36 ms 25688 KB Output is correct
31 Correct 6 ms 8796 KB Output is correct
32 Correct 23 ms 13996 KB Output is correct
33 Correct 24 ms 14172 KB Output is correct
34 Correct 23 ms 14464 KB Output is correct
35 Correct 14 ms 15580 KB Output is correct
36 Correct 24 ms 16912 KB Output is correct
37 Correct 21 ms 18012 KB Output is correct
38 Correct 14 ms 11100 KB Output is correct
39 Correct 58 ms 21968 KB Output is correct
40 Correct 68 ms 24852 KB Output is correct
41 Correct 94 ms 31684 KB Output is correct
42 Correct 59 ms 20360 KB Output is correct
43 Correct 73 ms 22232 KB Output is correct
44 Correct 59 ms 20724 KB Output is correct
45 Correct 16 ms 11448 KB Output is correct
46 Correct 57 ms 22644 KB Output is correct
47 Correct 71 ms 26196 KB Output is correct
48 Correct 101 ms 34548 KB Output is correct
49 Correct 57 ms 21148 KB Output is correct
50 Correct 74 ms 22868 KB Output is correct
51 Correct 62 ms 21668 KB Output is correct