답안 #972833

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
972833	2024-05-01T08:45:51 Z	phoenix	Magic Tree (CEOI19_magictree)	C++17	100 / 100	128 ms	37968 KB

magictree

#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

#	결과	실행 시간	메모리	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

#	결과	실행 시간	메모리	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

#	결과	실행 시간	메모리	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

#	결과	실행 시간	메모리	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

#	결과	실행 시간	메모리	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

#	결과	실행 시간	메모리	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

#	결과	실행 시간	메모리	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

#	결과	실행 시간	메모리	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

답안 #972833

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