Submission #1051842

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
1051842	2024-08-10T10:08:15 Z	vako_p	Magic Tree (CEOI19_magictree)	C++14	100 / 100	82 ms	32336 KB

magictree

#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pb push_back

const int mxN = 1e5 + 5;
ll n,m,k;
pair<int,int> a[mxN];
vector<int> v[mxN];
map<int, ll> dp[mxN];
 
void dfs(ll at, ll p){
	for(auto it : v[at]){
		if(it == p) continue;
		dfs(it, at);
		if(dp[it].size() > dp[at].size()) swap(dp[it], dp[at]);
		for(auto it1 : dp[it]) dp[at][it1.first] += it1.second;
		dp[it].clear();
	}
	dp[at][a[at].first] += a[at].second;
	ll left = a[at].second;
	for(auto it = dp[at].upper_bound(a[at].first); it != dp[at].end();){
		if((*it).second > left){
			(*it).second -= left;
			break;
		}
		left -= (*it).second;
		dp[at].erase(it++);
	}
}

int main(){
	ios::sync_with_stdio(false);
	cin.tie(0);
	cout.tie(0);
	cin >> n >> m >> k;
	for(int i = 2; i <= n; i++){
		ll p;
		cin >> p;
		v[p].pb(i);
		v[i].pb(p);
	}
	for(int i = 0; i < m; i++){
		ll idx,d,w;
		cin >> idx >> d >> w;
		a[idx] = {d, w};
	}
	dfs(1, 1);
	ll ans = 0;
	for(auto it : dp[1]) ans += it.second;
	cout << ans;
}

Subtask #1
6.0 / 6.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	7256 KB	Output is correct
2	Correct	1 ms	7256 KB	Output is correct
3	Correct	2 ms	7260 KB	Output is correct
4	Correct	1 ms	7260 KB	Output is correct
5	Correct	1 ms	7260 KB	Output is correct
6	Correct	1 ms	7260 KB	Output is correct
7	Correct	1 ms	7260 KB	Output is correct
8	Correct	1 ms	7260 KB	Output is correct
9	Correct	1 ms	7260 KB	Output is correct

Subtask #2
3.0 / 3.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	47 ms	13392 KB	Output is correct
2	Correct	26 ms	19280 KB	Output is correct
3	Correct	72 ms	16472 KB	Output is correct
4	Correct	55 ms	15308 KB	Output is correct
5	Correct	65 ms	17232 KB	Output is correct

Subtask #3
11.0 / 11.0

#	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	1 ms	7516 KB	Output is correct
4	Correct	45 ms	28464 KB	Output is correct
5	Correct	46 ms	32336 KB	Output is correct
6	Correct	42 ms	28480 KB	Output is correct

Subtask #4
12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	30 ms	11356 KB	Output is correct
2	Correct	46 ms	11356 KB	Output is correct
3	Correct	30 ms	18064 KB	Output is correct
4	Correct	25 ms	11732 KB	Output is correct
5	Correct	33 ms	28496 KB	Output is correct

Subtask #5
16.0 / 16.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	7256 KB	Output is correct
2	Correct	1 ms	7256 KB	Output is correct
3	Correct	2 ms	7260 KB	Output is correct
4	Correct	1 ms	7260 KB	Output is correct
5	Correct	1 ms	7260 KB	Output is correct
6	Correct	1 ms	7260 KB	Output is correct
7	Correct	1 ms	7260 KB	Output is correct
8	Correct	1 ms	7260 KB	Output is correct
9	Correct	1 ms	7260 KB	Output is correct
10	Correct	44 ms	11356 KB	Output is correct
11	Correct	33 ms	11352 KB	Output is correct
12	Correct	31 ms	18072 KB	Output is correct
13	Correct	30 ms	11732 KB	Output is correct
14	Correct	30 ms	28472 KB	Output is correct

Subtask #6
13.0 / 13.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	7 ms	8280 KB	Output is correct
2	Correct	19 ms	11416 KB	Output is correct
3	Correct	21 ms	11356 KB	Output is correct
4	Correct	27 ms	11356 KB	Output is correct
5	Correct	15 ms	11868 KB	Output is correct
6	Correct	25 ms	14928 KB	Output is correct
7	Correct	28 ms	18320 KB	Output is correct

Subtask #7
22.0 / 22.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	7256 KB	Output is correct
2	Correct	1 ms	7256 KB	Output is correct
3	Correct	2 ms	7260 KB	Output is correct
4	Correct	1 ms	7260 KB	Output is correct
5	Correct	1 ms	7260 KB	Output is correct
6	Correct	1 ms	7260 KB	Output is correct
7	Correct	1 ms	7260 KB	Output is correct
8	Correct	1 ms	7260 KB	Output is correct
9	Correct	1 ms	7260 KB	Output is correct
10	Correct	2 ms	7512 KB	Output is correct
11	Correct	2 ms	7516 KB	Output is correct
12	Correct	1 ms	7516 KB	Output is correct
13	Correct	45 ms	28464 KB	Output is correct
14	Correct	46 ms	32336 KB	Output is correct
15	Correct	42 ms	28480 KB	Output is correct
16	Correct	44 ms	11356 KB	Output is correct
17	Correct	33 ms	11352 KB	Output is correct
18	Correct	31 ms	18072 KB	Output is correct
19	Correct	30 ms	11732 KB	Output is correct
20	Correct	30 ms	28472 KB	Output is correct
21	Correct	10 ms	8540 KB	Output is correct
22	Correct	54 ms	11800 KB	Output is correct
23	Correct	56 ms	13648 KB	Output is correct
24	Correct	82 ms	14676 KB	Output is correct
25	Correct	38 ms	15496 KB	Output is correct
26	Correct	74 ms	18896 KB	Output is correct
27	Correct	56 ms	19796 KB	Output is correct

Subtask #8
17.0 / 17.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	7256 KB	Output is correct
2	Correct	1 ms	7256 KB	Output is correct
3	Correct	2 ms	7260 KB	Output is correct
4	Correct	1 ms	7260 KB	Output is correct
5	Correct	1 ms	7260 KB	Output is correct
6	Correct	1 ms	7260 KB	Output is correct
7	Correct	1 ms	7260 KB	Output is correct
8	Correct	1 ms	7260 KB	Output is correct
9	Correct	1 ms	7260 KB	Output is correct
10	Correct	47 ms	13392 KB	Output is correct
11	Correct	26 ms	19280 KB	Output is correct
12	Correct	72 ms	16472 KB	Output is correct
13	Correct	55 ms	15308 KB	Output is correct
14	Correct	65 ms	17232 KB	Output is correct
15	Correct	2 ms	7512 KB	Output is correct
16	Correct	2 ms	7516 KB	Output is correct
17	Correct	1 ms	7516 KB	Output is correct
18	Correct	45 ms	28464 KB	Output is correct
19	Correct	46 ms	32336 KB	Output is correct
20	Correct	42 ms	28480 KB	Output is correct
21	Correct	30 ms	11356 KB	Output is correct
22	Correct	46 ms	11356 KB	Output is correct
23	Correct	30 ms	18064 KB	Output is correct
24	Correct	25 ms	11732 KB	Output is correct
25	Correct	33 ms	28496 KB	Output is correct
26	Correct	44 ms	11356 KB	Output is correct
27	Correct	33 ms	11352 KB	Output is correct
28	Correct	31 ms	18072 KB	Output is correct
29	Correct	30 ms	11732 KB	Output is correct
30	Correct	30 ms	28472 KB	Output is correct
31	Correct	7 ms	8280 KB	Output is correct
32	Correct	19 ms	11416 KB	Output is correct
33	Correct	21 ms	11356 KB	Output is correct
34	Correct	27 ms	11356 KB	Output is correct
35	Correct	15 ms	11868 KB	Output is correct
36	Correct	25 ms	14928 KB	Output is correct
37	Correct	28 ms	18320 KB	Output is correct
38	Correct	10 ms	8540 KB	Output is correct
39	Correct	54 ms	11800 KB	Output is correct
40	Correct	56 ms	13648 KB	Output is correct
41	Correct	82 ms	14676 KB	Output is correct
42	Correct	38 ms	15496 KB	Output is correct
43	Correct	74 ms	18896 KB	Output is correct
44	Correct	56 ms	19796 KB	Output is correct
45	Correct	10 ms	8540 KB	Output is correct
46	Correct	42 ms	11812 KB	Output is correct
47	Correct	42 ms	13692 KB	Output is correct
48	Correct	68 ms	15192 KB	Output is correct
49	Correct	50 ms	15316 KB	Output is correct
50	Correct	53 ms	19252 KB	Output is correct
51	Correct	48 ms	20032 KB	Output is correct

Submission #1051842

Compilation message