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Submission #980506

# Submission time Handle Problem Language Result Execution time Memory
980506 2024-05-12T08:06:35 Z happy_node Worst Reporter 4 (JOI21_worst_reporter4) C++17
79 / 100
 284 ms 59572 KB 
#include <bits/stdc++.h>
using namespace std;

typedef long long ll;

const int MX=2e5+5;
int N;
int A[MX],H[MX],C[MX];

vector<int> adj[MX];

multiset<pair<ll,ll>> dp[MX];
int par[MX];

int find(int v) {
	return par[v]==v?v:par[v]=find(par[v]);
}

void merge(int u, int v) {
	u=find(u),v=find(v);
	if(u==v) return;

	if(dp[u].size()>dp[v].size()) swap(u,v);

	for(auto [pos,val]:dp[u]) {
		dp[v].insert({pos,val});
	}

	par[u]=v;
	dp[u].clear();
}

void dfs(int v, int p) {
	int prv=-1;
	for(auto u:adj[v]) {
		if(u==p) continue;
		dfs(u,v);
		if(prv!=-1) 
			merge(u,prv);
		prv=u;
	}

	if(prv!=-1) merge(v,prv);

	int pv=find(v);

	auto it=dp[pv].lower_bound(make_pair(H[v],0));

	if(it==dp[pv].begin()) {
		dp[pv].insert(make_pair(H[v],C[v]));
	} else {
		it--;
		ll cur=C[v];
		while(true) {
			if(cur>=it->second) {
 				cur-=it->second;
				it=dp[pv].erase(it);
				if(it==dp[pv].begin()) break;
				it--;
			} else {
				auto [p,q]=*it;
				dp[pv].erase(it);
				dp[pv].insert({p,q-cur});
				cur=0;
				break;
			}
		}
		dp[pv].insert(make_pair(H[v],C[v]));
	}
}

int main() {
	cin.tie(0); ios_base::sync_with_stdio(0);

	// set<int> st;
	// st.insert(1);
	// st.insert(2);
	// st.insert(3);
	// auto it=st.lower_bound(2);
	// it=st.erase(it);

	// cout<<(*it)<<'\n';

	cin>>N;
	ll sum=0;
	for(int i=1;i<=N;i++) {
		cin>>A[i]>>H[i]>>C[i];
		sum+=C[i];
	}

	for(int i=2;i<=N;i++) {
		adj[A[i]].push_back(i);
	}

	for(int i=1;i<=N;i++) par[i]=i;
	dfs(1,0);

	ll ans=0;
	for(auto [pos,val]:dp[find(1)]) {
		ans+=val;
	}

	cout<<sum-ans<<'\n';
}

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 16732 KB Output is correct
2 Correct 4 ms 16732 KB Output is correct
3 Correct 4 ms 16828 KB Output is correct
4 Correct 4 ms 16732 KB Output is correct
5 Correct 7 ms 17244 KB Output is correct
6 Correct 7 ms 17144 KB Output is correct
7 Correct 7 ms 17244 KB Output is correct
8 Correct 9 ms 17244 KB Output is correct
9 Correct 7 ms 17244 KB Output is correct
10 Correct 7 ms 17404 KB Output is correct
11 Correct 7 ms 17244 KB Output is correct
12 Correct 6 ms 17756 KB Output is correct
13 Correct 7 ms 17756 KB Output is correct
14 Correct 6 ms 17500 KB Output is correct
15 Correct 8 ms 17500 KB Output is correct
16 Correct 7 ms 17360 KB Output is correct
17 Correct 7 ms 17244 KB Output is correct
18 Correct 8 ms 17500 KB Output is correct
19 Correct 7 ms 17500 KB Output is correct
20 Correct 6 ms 17500 KB Output is correct
21 Correct 6 ms 17500 KB Output is correct
22 Correct 6 ms 17244 KB Output is correct
23 Correct 6 ms 17244 KB Output is correct
24 Correct 7 ms 17500 KB Output is correct
25 Correct 7 ms 17516 KB Output is correct
26 Correct 5 ms 17756 KB Output is correct
27 Correct 6 ms 17500 KB Output is correct
28 Correct 7 ms 17500 KB Output is correct
29 Correct 6 ms 17804 KB Output is correct
30 Correct 6 ms 17756 KB Output is correct
31 Correct 6 ms 17756 KB Output is correct

Subtask #2
65.0 / 65.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 16732 KB Output is correct
2 Correct 4 ms 16732 KB Output is correct
3 Correct 4 ms 16828 KB Output is correct
4 Correct 4 ms 16732 KB Output is correct
5 Correct 7 ms 17244 KB Output is correct
6 Correct 7 ms 17144 KB Output is correct
7 Correct 7 ms 17244 KB Output is correct
8 Correct 9 ms 17244 KB Output is correct
9 Correct 7 ms 17244 KB Output is correct
10 Correct 7 ms 17404 KB Output is correct
11 Correct 7 ms 17244 KB Output is correct
12 Correct 6 ms 17756 KB Output is correct
13 Correct 7 ms 17756 KB Output is correct
14 Correct 6 ms 17500 KB Output is correct
15 Correct 8 ms 17500 KB Output is correct
16 Correct 7 ms 17360 KB Output is correct
17 Correct 7 ms 17244 KB Output is correct
18 Correct 8 ms 17500 KB Output is correct
19 Correct 7 ms 17500 KB Output is correct
20 Correct 6 ms 17500 KB Output is correct
21 Correct 6 ms 17500 KB Output is correct
22 Correct 6 ms 17244 KB Output is correct
23 Correct 6 ms 17244 KB Output is correct
24 Correct 7 ms 17500 KB Output is correct
25 Correct 7 ms 17516 KB Output is correct
26 Correct 5 ms 17756 KB Output is correct
27 Correct 6 ms 17500 KB Output is correct
28 Correct 7 ms 17500 KB Output is correct
29 Correct 6 ms 17804 KB Output is correct
30 Correct 6 ms 17756 KB Output is correct
31 Correct 6 ms 17756 KB Output is correct
32 Correct 8 ms 17244 KB Output is correct
33 Correct 227 ms 38280 KB Output is correct
34 Correct 217 ms 36948 KB Output is correct
35 Correct 203 ms 36064 KB Output is correct
36 Correct 225 ms 37620 KB Output is correct
37 Correct 228 ms 39504 KB Output is correct
38 Correct 284 ms 38320 KB Output is correct
39 Correct 129 ms 54040 KB Output is correct
40 Correct 134 ms 54100 KB Output is correct
41 Correct 134 ms 57376 KB Output is correct
42 Correct 123 ms 41552 KB Output is correct
43 Correct 125 ms 41812 KB Output is correct
44 Correct 216 ms 38036 KB Output is correct
45 Correct 210 ms 37964 KB Output is correct
46 Correct 254 ms 42460 KB Output is correct
47 Correct 162 ms 45212 KB Output is correct
48 Correct 187 ms 49032 KB Output is correct
49 Correct 179 ms 49492 KB Output is correct
50 Correct 150 ms 35020 KB Output is correct
51 Correct 158 ms 35156 KB Output is correct
52 Correct 193 ms 45768 KB Output is correct
53 Correct 201 ms 49864 KB Output is correct
54 Correct 76 ms 54096 KB Output is correct
55 Correct 123 ms 46928 KB Output is correct
56 Correct 117 ms 55120 KB Output is correct
57 Correct 124 ms 59020 KB Output is correct
58 Correct 186 ms 59428 KB Output is correct
59 Correct 191 ms 59572 KB Output is correct

Subtask #3
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 16732 KB Output is correct
2 Correct 4 ms 16732 KB Output is correct
3 Correct 4 ms 16828 KB Output is correct
4 Correct 4 ms 16732 KB Output is correct
5 Correct 7 ms 17244 KB Output is correct
6 Correct 7 ms 17144 KB Output is correct
7 Correct 7 ms 17244 KB Output is correct
8 Correct 9 ms 17244 KB Output is correct
9 Correct 7 ms 17244 KB Output is correct
10 Correct 7 ms 17404 KB Output is correct
11 Correct 7 ms 17244 KB Output is correct
12 Correct 6 ms 17756 KB Output is correct
13 Correct 7 ms 17756 KB Output is correct
14 Correct 6 ms 17500 KB Output is correct
15 Correct 8 ms 17500 KB Output is correct
16 Correct 7 ms 17360 KB Output is correct
17 Correct 7 ms 17244 KB Output is correct
18 Correct 8 ms 17500 KB Output is correct
19 Correct 7 ms 17500 KB Output is correct
20 Correct 6 ms 17500 KB Output is correct
21 Correct 6 ms 17500 KB Output is correct
22 Correct 6 ms 17244 KB Output is correct
23 Correct 6 ms 17244 KB Output is correct
24 Correct 7 ms 17500 KB Output is correct
25 Correct 7 ms 17516 KB Output is correct
26 Correct 5 ms 17756 KB Output is correct
27 Correct 6 ms 17500 KB Output is correct
28 Correct 7 ms 17500 KB Output is correct
29 Correct 6 ms 17804 KB Output is correct
30 Correct 6 ms 17756 KB Output is correct
31 Correct 6 ms 17756 KB Output is correct
32 Correct 8 ms 17244 KB Output is correct
33 Correct 227 ms 38280 KB Output is correct
34 Correct 217 ms 36948 KB Output is correct
35 Correct 203 ms 36064 KB Output is correct
36 Correct 225 ms 37620 KB Output is correct
37 Correct 228 ms 39504 KB Output is correct
38 Correct 284 ms 38320 KB Output is correct
39 Correct 129 ms 54040 KB Output is correct
40 Correct 134 ms 54100 KB Output is correct
41 Correct 134 ms 57376 KB Output is correct
42 Correct 123 ms 41552 KB Output is correct
43 Correct 125 ms 41812 KB Output is correct
44 Correct 216 ms 38036 KB Output is correct
45 Correct 210 ms 37964 KB Output is correct
46 Correct 254 ms 42460 KB Output is correct
47 Correct 162 ms 45212 KB Output is correct
48 Correct 187 ms 49032 KB Output is correct
49 Correct 179 ms 49492 KB Output is correct
50 Correct 150 ms 35020 KB Output is correct
51 Correct 158 ms 35156 KB Output is correct
52 Correct 193 ms 45768 KB Output is correct
53 Correct 201 ms 49864 KB Output is correct
54 Correct 76 ms 54096 KB Output is correct
55 Correct 123 ms 46928 KB Output is correct
56 Correct 117 ms 55120 KB Output is correct
57 Correct 124 ms 59020 KB Output is correct
58 Correct 186 ms 59428 KB Output is correct
59 Correct 191 ms 59572 KB Output is correct
60 Correct 3 ms 16728 KB Output is correct
61 Incorrect 3 ms 16876 KB Output isn't correct
62 Halted 0 ms 0 KB -