Submission #228507

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
228507	2020-05-01T10:03:43 Z	oolimry	Magic Tree (CEOI19_magictree)	C++14	100 / 100	172 ms	37752 KB

magictree

#include <bits/stdc++.h>
#define day first
#define value second
using namespace std;

typedef pair<int, long long> ii;
ii fruit[100005];
map<int, long long> dp[100005];
vector<int> adj[100005];

void dfs(int u){
	auto& cur = dp[u]; ///updating cur updates dp[u]
	
	for(int v : adj[u]){
		dfs(v);
		if(cur.size() < dp[v].size()) swap(cur, dp[v]);
		for(ii x : dp[v]) cur[x.day] += x.value;
	}
	
	ii F = fruit[u];
	if(fruit[u] == ii(0,0)) return;
	
	cur[F.day] += F.value;
	long long subtract = F.value;
	while(true){
		auto it = cur.find(F.day); it++;
		if(it == cur.end()) break;
		if(it->second > subtract){
			it->second -= subtract;
			break;
		}
		subtract -= it->second;
		dp[u].erase(it);
	}
}

int main(){
	ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
	
	int n, m, k; cin >> n >> m >> k;
	
	for(int i = 2;i <= n;i++){
		int p; cin >> p;
		adj[p].push_back(i);
	}
	
	while(m--){
		int u; cin >> u;
		cin >> fruit[u].day >> fruit[u].value;
	}
	
	dfs(1);
	long long ans = 0;
	for(ii x : dp[1]) ans += x.value;
	cout << ans;
}

Subtask #1
6.0 / 6.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	9 ms	7424 KB	Output is correct
2	Correct	8 ms	7424 KB	Output is correct
3	Correct	8 ms	7424 KB	Output is correct
4	Correct	8 ms	7424 KB	Output is correct
5	Correct	9 ms	7424 KB	Output is correct
6	Correct	9 ms	7424 KB	Output is correct
7	Correct	9 ms	7424 KB	Output is correct
8	Correct	9 ms	7424 KB	Output is correct
9	Correct	9 ms	7424 KB	Output is correct

Subtask #2
3.0 / 3.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	82 ms	19320 KB	Output is correct
2	Correct	60 ms	19832 KB	Output is correct
3	Correct	172 ms	37752 KB	Output is correct
4	Correct	106 ms	20724 KB	Output is correct
5	Correct	137 ms	22776 KB	Output is correct

Subtask #3
11.0 / 11.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	10 ms	7552 KB	Output is correct
2	Correct	9 ms	7552 KB	Output is correct
3	Correct	9 ms	7680 KB	Output is correct
4	Correct	73 ms	28188 KB	Output is correct
5	Correct	100 ms	31992 KB	Output is correct
6	Correct	94 ms	28152 KB	Output is correct

Subtask #4
12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	98 ms	16504 KB	Output is correct
2	Correct	87 ms	15608 KB	Output is correct
3	Correct	85 ms	20344 KB	Output is correct
4	Correct	60 ms	16752 KB	Output is correct
5	Correct	64 ms	28280 KB	Output is correct

Subtask #5
16.0 / 16.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	9 ms	7424 KB	Output is correct
2	Correct	8 ms	7424 KB	Output is correct
3	Correct	8 ms	7424 KB	Output is correct
4	Correct	8 ms	7424 KB	Output is correct
5	Correct	9 ms	7424 KB	Output is correct
6	Correct	9 ms	7424 KB	Output is correct
7	Correct	9 ms	7424 KB	Output is correct
8	Correct	9 ms	7424 KB	Output is correct
9	Correct	9 ms	7424 KB	Output is correct
10	Correct	104 ms	18552 KB	Output is correct
11	Correct	93 ms	17528 KB	Output is correct
12	Correct	76 ms	19704 KB	Output is correct
13	Correct	55 ms	16112 KB	Output is correct
14	Correct	66 ms	27716 KB	Output is correct

Subtask #6
13.0 / 13.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	14 ms	8320 KB	Output is correct
2	Correct	40 ms	11128 KB	Output is correct
3	Correct	38 ms	11128 KB	Output is correct
4	Correct	39 ms	11256 KB	Output is correct
5	Correct	17 ms	9596 KB	Output is correct
6	Correct	38 ms	13688 KB	Output is correct
7	Correct	38 ms	17528 KB	Output is correct

Subtask #7
22.0 / 22.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	9 ms	7424 KB	Output is correct
2	Correct	8 ms	7424 KB	Output is correct
3	Correct	8 ms	7424 KB	Output is correct
4	Correct	8 ms	7424 KB	Output is correct
5	Correct	9 ms	7424 KB	Output is correct
6	Correct	9 ms	7424 KB	Output is correct
7	Correct	9 ms	7424 KB	Output is correct
8	Correct	9 ms	7424 KB	Output is correct
9	Correct	9 ms	7424 KB	Output is correct
10	Correct	10 ms	7552 KB	Output is correct
11	Correct	9 ms	7552 KB	Output is correct
12	Correct	9 ms	7680 KB	Output is correct
13	Correct	73 ms	28188 KB	Output is correct
14	Correct	100 ms	31992 KB	Output is correct
15	Correct	94 ms	28152 KB	Output is correct
16	Correct	104 ms	18552 KB	Output is correct
17	Correct	93 ms	17528 KB	Output is correct
18	Correct	76 ms	19704 KB	Output is correct
19	Correct	55 ms	16112 KB	Output is correct
20	Correct	66 ms	27716 KB	Output is correct
21	Correct	28 ms	10880 KB	Output is correct
22	Correct	88 ms	19576 KB	Output is correct
23	Correct	97 ms	22776 KB	Output is correct
24	Correct	152 ms	31096 KB	Output is correct
25	Correct	108 ms	19956 KB	Output is correct
26	Correct	126 ms	22264 KB	Output is correct
27	Correct	110 ms	21496 KB	Output is correct

Subtask #8
17.0 / 17.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	9 ms	7424 KB	Output is correct
2	Correct	8 ms	7424 KB	Output is correct
3	Correct	8 ms	7424 KB	Output is correct
4	Correct	8 ms	7424 KB	Output is correct
5	Correct	9 ms	7424 KB	Output is correct
6	Correct	9 ms	7424 KB	Output is correct
7	Correct	9 ms	7424 KB	Output is correct
8	Correct	9 ms	7424 KB	Output is correct
9	Correct	9 ms	7424 KB	Output is correct
10	Correct	82 ms	19320 KB	Output is correct
11	Correct	60 ms	19832 KB	Output is correct
12	Correct	172 ms	37752 KB	Output is correct
13	Correct	106 ms	20724 KB	Output is correct
14	Correct	137 ms	22776 KB	Output is correct
15	Correct	10 ms	7552 KB	Output is correct
16	Correct	9 ms	7552 KB	Output is correct
17	Correct	9 ms	7680 KB	Output is correct
18	Correct	73 ms	28188 KB	Output is correct
19	Correct	100 ms	31992 KB	Output is correct
20	Correct	94 ms	28152 KB	Output is correct
21	Correct	98 ms	16504 KB	Output is correct
22	Correct	87 ms	15608 KB	Output is correct
23	Correct	85 ms	20344 KB	Output is correct
24	Correct	60 ms	16752 KB	Output is correct
25	Correct	64 ms	28280 KB	Output is correct
26	Correct	104 ms	18552 KB	Output is correct
27	Correct	93 ms	17528 KB	Output is correct
28	Correct	76 ms	19704 KB	Output is correct
29	Correct	55 ms	16112 KB	Output is correct
30	Correct	66 ms	27716 KB	Output is correct
31	Correct	14 ms	8320 KB	Output is correct
32	Correct	40 ms	11128 KB	Output is correct
33	Correct	38 ms	11128 KB	Output is correct
34	Correct	39 ms	11256 KB	Output is correct
35	Correct	17 ms	9596 KB	Output is correct
36	Correct	38 ms	13688 KB	Output is correct
37	Correct	38 ms	17528 KB	Output is correct
38	Correct	28 ms	10880 KB	Output is correct
39	Correct	88 ms	19576 KB	Output is correct
40	Correct	97 ms	22776 KB	Output is correct
41	Correct	152 ms	31096 KB	Output is correct
42	Correct	108 ms	19956 KB	Output is correct
43	Correct	126 ms	22264 KB	Output is correct
44	Correct	110 ms	21496 KB	Output is correct
45	Correct	31 ms	11392 KB	Output is correct
46	Correct	90 ms	20600 KB	Output is correct
47	Correct	111 ms	24184 KB	Output is correct
48	Correct	161 ms	34172 KB	Output is correct
49	Correct	108 ms	20852 KB	Output is correct
50	Correct	136 ms	23416 KB	Output is correct
51	Correct	120 ms	22392 KB	Output is correct

Submission #228507

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