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Submission #972833

# Submission time Handle Problem Language Result Execution time Memory
972833 2024-05-01T08:45:51 Z phoenix Magic Tree (CEOI19_magictree) C++17
100 / 100
 128 ms 37968 KB 
#include <bits/stdc++.h>

using namespace std;
using ll = long long;

const int N = 100100;

int n, m, k;

int p[N];
int d[N];
int w[N];

map<int, ll> mp[N];

int main() {
    ios::sync_with_stdio(0);
    cin.tie(0);
    cin >> n >> m >> k;

    for (int i = 2; i <= n; i++) {
        cin >> p[i];
    }
    for (int i = 0; i < m; i++) {
        int v;
        cin >> v;
        cin >> d[v] >> w[v];    
    }

    auto merge = [&](int u, int v) {
        if ((int)mp[u].size() < (int)mp[v].size()) swap(mp[u], mp[v]);
        for (auto c : mp[v]) 
            mp[u][c.first] += c.second;
    };

    for (int v = n; v >= 1; v--) {
        auto it = mp[v].upper_bound(d[v]);
        int s = w[v];
        while (it != mp[v].end()) {
            if (it->second <= s) {
                s -= it->second;
                mp[v].erase(it);
            } else {
                mp[v][it->first] = it->second - s;
                break;
            }
            it = mp[v].upper_bound(d[v]);
        }
        mp[v][d[v]] += w[v];
        merge(p[v], v);
    }
    ll s = 0;
    for (auto c : mp[0])
        s += c.second;
    cout << s << '\n';
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4956 KB Output is correct
2 Correct 1 ms 4956 KB Output is correct
3 Correct 1 ms 4956 KB Output is correct
4 Correct 1 ms 4956 KB Output is correct
5 Correct 1 ms 4956 KB Output is correct
6 Correct 1 ms 4956 KB Output is correct
7 Correct 1 ms 4956 KB Output is correct
8 Correct 1 ms 4956 KB Output is correct
9 Correct 1 ms 4956 KB Output is correct

Subtask #2
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 46 ms 18872 KB Output is correct
2 Correct 22 ms 8788 KB Output is correct
3 Correct 128 ms 37968 KB Output is correct
4 Correct 55 ms 16208 KB Output is correct
5 Correct 91 ms 20364 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4956 KB Output is correct
2 Correct 1 ms 5176 KB Output is correct
3 Correct 2 ms 5180 KB Output is correct
4 Correct 26 ms 8212 KB Output is correct
5 Correct 43 ms 12112 KB Output is correct
6 Correct 44 ms 8292 KB Output is correct

Subtask #4
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 32 ms 10840 KB Output is correct
2 Correct 40 ms 11228 KB Output is correct
3 Correct 32 ms 8812 KB Output is correct
4 Correct 29 ms 13404 KB Output is correct
5 Correct 24 ms 7508 KB Output is correct

Subtask #5
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4956 KB Output is correct
2 Correct 1 ms 4956 KB Output is correct
3 Correct 1 ms 4956 KB Output is correct
4 Correct 1 ms 4956 KB Output is correct
5 Correct 1 ms 4956 KB Output is correct
6 Correct 1 ms 4956 KB Output is correct
7 Correct 1 ms 4956 KB Output is correct
8 Correct 1 ms 4956 KB Output is correct
9 Correct 1 ms 4956 KB Output is correct
10 Correct 49 ms 15668 KB Output is correct
11 Correct 42 ms 14204 KB Output is correct
12 Correct 29 ms 8788 KB Output is correct
13 Correct 28 ms 13212 KB Output is correct
14 Correct 25 ms 7260 KB Output is correct

Subtask #6
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 6232 KB Output is correct
2 Correct 13 ms 9560 KB Output is correct
3 Correct 16 ms 9564 KB Output is correct
4 Correct 18 ms 9560 KB Output is correct
5 Correct 13 ms 12636 KB Output is correct
6 Correct 15 ms 10080 KB Output is correct
7 Correct 11 ms 7512 KB Output is correct

Subtask #7
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4956 KB Output is correct
2 Correct 1 ms 4956 KB Output is correct
3 Correct 1 ms 4956 KB Output is correct
4 Correct 1 ms 4956 KB Output is correct
5 Correct 1 ms 4956 KB Output is correct
6 Correct 1 ms 4956 KB Output is correct
7 Correct 1 ms 4956 KB Output is correct
8 Correct 1 ms 4956 KB Output is correct
9 Correct 1 ms 4956 KB Output is correct
10 Correct 2 ms 4956 KB Output is correct
11 Correct 1 ms 5176 KB Output is correct
12 Correct 2 ms 5180 KB Output is correct
13 Correct 26 ms 8212 KB Output is correct
14 Correct 43 ms 12112 KB Output is correct
15 Correct 44 ms 8292 KB Output is correct
16 Correct 49 ms 15668 KB Output is correct
17 Correct 42 ms 14204 KB Output is correct
18 Correct 29 ms 8788 KB Output is correct
19 Correct 28 ms 13212 KB Output is correct
20 Correct 25 ms 7260 KB Output is correct
21 Correct 14 ms 9048 KB Output is correct
22 Correct 51 ms 19288 KB Output is correct
23 Correct 56 ms 23124 KB Output is correct
24 Correct 90 ms 32080 KB Output is correct
25 Correct 52 ms 17560 KB Output is correct
26 Correct 66 ms 17992 KB Output is correct
27 Correct 60 ms 11052 KB Output is correct

Subtask #8
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4956 KB Output is correct
2 Correct 1 ms 4956 KB Output is correct
3 Correct 1 ms 4956 KB Output is correct
4 Correct 1 ms 4956 KB Output is correct
5 Correct 1 ms 4956 KB Output is correct
6 Correct 1 ms 4956 KB Output is correct
7 Correct 1 ms 4956 KB Output is correct
8 Correct 1 ms 4956 KB Output is correct
9 Correct 1 ms 4956 KB Output is correct
10 Correct 46 ms 18872 KB Output is correct
11 Correct 22 ms 8788 KB Output is correct
12 Correct 128 ms 37968 KB Output is correct
13 Correct 55 ms 16208 KB Output is correct
14 Correct 91 ms 20364 KB Output is correct
15 Correct 2 ms 4956 KB Output is correct
16 Correct 1 ms 5176 KB Output is correct
17 Correct 2 ms 5180 KB Output is correct
18 Correct 26 ms 8212 KB Output is correct
19 Correct 43 ms 12112 KB Output is correct
20 Correct 44 ms 8292 KB Output is correct
21 Correct 32 ms 10840 KB Output is correct
22 Correct 40 ms 11228 KB Output is correct
23 Correct 32 ms 8812 KB Output is correct
24 Correct 29 ms 13404 KB Output is correct
25 Correct 24 ms 7508 KB Output is correct
26 Correct 49 ms 15668 KB Output is correct
27 Correct 42 ms 14204 KB Output is correct
28 Correct 29 ms 8788 KB Output is correct
29 Correct 28 ms 13212 KB Output is correct
30 Correct 25 ms 7260 KB Output is correct
31 Correct 4 ms 6232 KB Output is correct
32 Correct 13 ms 9560 KB Output is correct
33 Correct 16 ms 9564 KB Output is correct
34 Correct 18 ms 9560 KB Output is correct
35 Correct 13 ms 12636 KB Output is correct
36 Correct 15 ms 10080 KB Output is correct
37 Correct 11 ms 7512 KB Output is correct
38 Correct 14 ms 9048 KB Output is correct
39 Correct 51 ms 19288 KB Output is correct
40 Correct 56 ms 23124 KB Output is correct
41 Correct 90 ms 32080 KB Output is correct
42 Correct 52 ms 17560 KB Output is correct
43 Correct 66 ms 17992 KB Output is correct
44 Correct 60 ms 11052 KB Output is correct
45 Correct 16 ms 9468 KB Output is correct
46 Correct 57 ms 20572 KB Output is correct
47 Correct 66 ms 24660 KB Output is correct
48 Correct 112 ms 35312 KB Output is correct
49 Correct 72 ms 18340 KB Output is correct
50 Correct 70 ms 18904 KB Output is correct
51 Correct 62 ms 11856 KB Output is correct