답안 #594006

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
594006	2022-07-11T21:46:55 Z	penguinhacker	Magic Tree (CEOI19_magictree)	C++17	100 / 100	107 ms	35908 KB

magictree

#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define ar array

const int mxN=1e5;
int n, m, k;
ar<int, 2> fruit[mxN];
vector<int> adj[mxN];
map<int, ll> dp[mxN];

void dfs(int u=0) {
	for (int v : adj[u]) {
		dfs(v);
		if (dp[v].size()>dp[u].size())
			swap(dp[u], dp[v]);
		for (auto x : dp[v])
			dp[u][x.first]+=x.second;
		map<int, ll>().swap(dp[v]);
	}
	if (fruit[u][0]) {
		dp[u][fruit[u][0]]+=fruit[u][1];
		auto it=dp[u].find(fruit[u][0]);
		int rem=fruit[u][1];
		for (++it; it!=dp[u].end()&&rem>=it->second; it=dp[u].erase(it))
			rem-=it->second;
		if (it!=dp[u].end())
			it->second-=rem;
	}
}

int main() {
	ios::sync_with_stdio(0);
	cin.tie(0);
	cin >> n >> m >> k;
	for (int i=1; i<n; ++i) {
		int p;
		cin >> p, --p;
		adj[p].push_back(i);
	}
	for (int i=0; i<m; ++i) {
		int u, d, w;
		cin >> u >> d >> w, --u;
		fruit[u]={d, w};
	}
	dfs();
	ll ans=0;
	for (auto x : dp[0])
		ans+=x.second;
	cout << ans;
	return 0;
}

Subtask #1
6.0 / 6.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	7252 KB	Output is correct
2	Correct	4 ms	7372 KB	Output is correct
3	Correct	4 ms	7252 KB	Output is correct
4	Correct	4 ms	7372 KB	Output is correct
5	Correct	4 ms	7376 KB	Output is correct
6	Correct	4 ms	7368 KB	Output is correct
7	Correct	4 ms	7252 KB	Output is correct
8	Correct	4 ms	7252 KB	Output is correct
9	Correct	4 ms	7252 KB	Output is correct

Subtask #2
3.0 / 3.0

#	결과	실행 시간	메모리	Grader output
1	Correct	51 ms	12524 KB	Output is correct
2	Correct	43 ms	20300 KB	Output is correct
3	Correct	106 ms	15936 KB	Output is correct
4	Correct	60 ms	14300 KB	Output is correct
5	Correct	86 ms	16696 KB	Output is correct

Subtask #3
11.0 / 11.0

#	결과	실행 시간	메모리	Grader output
1	Correct	6 ms	7508 KB	Output is correct
2	Correct	4 ms	7508 KB	Output is correct
3	Correct	4 ms	7508 KB	Output is correct
4	Correct	48 ms	31948 KB	Output is correct
5	Correct	75 ms	35908 KB	Output is correct
6	Correct	62 ms	32008 KB	Output is correct

Subtask #4
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	54 ms	11744 KB	Output is correct
2	Correct	55 ms	11796 KB	Output is correct
3	Correct	49 ms	20248 KB	Output is correct
4	Correct	33 ms	10324 KB	Output is correct
5	Correct	46 ms	32076 KB	Output is correct

Subtask #5
16.0 / 16.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	7252 KB	Output is correct
2	Correct	4 ms	7372 KB	Output is correct
3	Correct	4 ms	7252 KB	Output is correct
4	Correct	4 ms	7372 KB	Output is correct
5	Correct	4 ms	7376 KB	Output is correct
6	Correct	4 ms	7368 KB	Output is correct
7	Correct	4 ms	7252 KB	Output is correct
8	Correct	4 ms	7252 KB	Output is correct
9	Correct	4 ms	7252 KB	Output is correct
10	Correct	57 ms	11156 KB	Output is correct
11	Correct	56 ms	11092 KB	Output is correct
12	Correct	48 ms	19580 KB	Output is correct
13	Correct	32 ms	9696 KB	Output is correct
14	Correct	44 ms	31428 KB	Output is correct

Subtask #6
13.0 / 13.0

#	결과	실행 시간	메모리	Grader output
1	Correct	7 ms	7976 KB	Output is correct
2	Correct	26 ms	10348 KB	Output is correct
3	Correct	27 ms	10336 KB	Output is correct
4	Correct	38 ms	10332 KB	Output is correct
5	Correct	10 ms	8788 KB	Output is correct
6	Correct	33 ms	13780 KB	Output is correct
7	Correct	28 ms	18732 KB	Output is correct

Subtask #7
22.0 / 22.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	7252 KB	Output is correct
2	Correct	4 ms	7372 KB	Output is correct
3	Correct	4 ms	7252 KB	Output is correct
4	Correct	4 ms	7372 KB	Output is correct
5	Correct	4 ms	7376 KB	Output is correct
6	Correct	4 ms	7368 KB	Output is correct
7	Correct	4 ms	7252 KB	Output is correct
8	Correct	4 ms	7252 KB	Output is correct
9	Correct	4 ms	7252 KB	Output is correct
10	Correct	6 ms	7508 KB	Output is correct
11	Correct	4 ms	7508 KB	Output is correct
12	Correct	4 ms	7508 KB	Output is correct
13	Correct	48 ms	31948 KB	Output is correct
14	Correct	75 ms	35908 KB	Output is correct
15	Correct	62 ms	32008 KB	Output is correct
16	Correct	57 ms	11156 KB	Output is correct
17	Correct	56 ms	11092 KB	Output is correct
18	Correct	48 ms	19580 KB	Output is correct
19	Correct	32 ms	9696 KB	Output is correct
20	Correct	44 ms	31428 KB	Output is correct
21	Correct	17 ms	8464 KB	Output is correct
22	Correct	56 ms	11340 KB	Output is correct
23	Correct	67 ms	13200 KB	Output is correct
24	Correct	98 ms	14796 KB	Output is correct
25	Correct	62 ms	13592 KB	Output is correct
26	Correct	76 ms	18892 KB	Output is correct
27	Correct	68 ms	21380 KB	Output is correct

Subtask #8
17.0 / 17.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	7252 KB	Output is correct
2	Correct	4 ms	7372 KB	Output is correct
3	Correct	4 ms	7252 KB	Output is correct
4	Correct	4 ms	7372 KB	Output is correct
5	Correct	4 ms	7376 KB	Output is correct
6	Correct	4 ms	7368 KB	Output is correct
7	Correct	4 ms	7252 KB	Output is correct
8	Correct	4 ms	7252 KB	Output is correct
9	Correct	4 ms	7252 KB	Output is correct
10	Correct	51 ms	12524 KB	Output is correct
11	Correct	43 ms	20300 KB	Output is correct
12	Correct	106 ms	15936 KB	Output is correct
13	Correct	60 ms	14300 KB	Output is correct
14	Correct	86 ms	16696 KB	Output is correct
15	Correct	6 ms	7508 KB	Output is correct
16	Correct	4 ms	7508 KB	Output is correct
17	Correct	4 ms	7508 KB	Output is correct
18	Correct	48 ms	31948 KB	Output is correct
19	Correct	75 ms	35908 KB	Output is correct
20	Correct	62 ms	32008 KB	Output is correct
21	Correct	54 ms	11744 KB	Output is correct
22	Correct	55 ms	11796 KB	Output is correct
23	Correct	49 ms	20248 KB	Output is correct
24	Correct	33 ms	10324 KB	Output is correct
25	Correct	46 ms	32076 KB	Output is correct
26	Correct	57 ms	11156 KB	Output is correct
27	Correct	56 ms	11092 KB	Output is correct
28	Correct	48 ms	19580 KB	Output is correct
29	Correct	32 ms	9696 KB	Output is correct
30	Correct	44 ms	31428 KB	Output is correct
31	Correct	7 ms	7976 KB	Output is correct
32	Correct	26 ms	10348 KB	Output is correct
33	Correct	27 ms	10336 KB	Output is correct
34	Correct	38 ms	10332 KB	Output is correct
35	Correct	10 ms	8788 KB	Output is correct
36	Correct	33 ms	13780 KB	Output is correct
37	Correct	28 ms	18732 KB	Output is correct
38	Correct	17 ms	8464 KB	Output is correct
39	Correct	56 ms	11340 KB	Output is correct
40	Correct	67 ms	13200 KB	Output is correct
41	Correct	98 ms	14796 KB	Output is correct
42	Correct	62 ms	13592 KB	Output is correct
43	Correct	76 ms	18892 KB	Output is correct
44	Correct	68 ms	21380 KB	Output is correct
45	Correct	18 ms	8532 KB	Output is correct
46	Correct	63 ms	11560 KB	Output is correct
47	Correct	71 ms	13444 KB	Output is correct
48	Correct	107 ms	16020 KB	Output is correct
49	Correct	58 ms	14296 KB	Output is correct
50	Correct	83 ms	19976 KB	Output is correct
51	Correct	77 ms	22280 KB	Output is correct

답안 #594006

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