oj.uz

Submission #980523

# Submission time Handle Problem Language Result Execution time Memory
980523 2024-05-12T08:16:57 Z happy_node Worst Reporter 4 (JOI21_worst_reporter4) C++17
79 / 100
 248 ms 56744 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 onstk[MX],degs[MX];
vector<int> stk;

void dfs0(int v) {
	onstk[v]=1;
	stk.push_back(v);

	if(onstk[A[v]]==0) {
		dfs0(A[v]);
	} else if(onstk[A[v]]==1) {
		sort(stk.begin(),stk.end(),[&](int i, int j){
			return H[i]<H[j];
		});
		int prv=stk.back();
		for(int i=stk.size()-1;i>=0;i--) {
			A[stk[i]]=prv;
			prv=stk[i];
		}
	}

	stk.pop_back();
	onstk[v]=2;
}

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

	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=1;i<=N;i++) {
		if(onstk[i]==2) continue;
		dfs0(i);
	}

	for(int i=1;i<=N;i++) {
		if(A[i]!=i) {
			adj[A[i]].push_back(i);
			degs[i]+=1;
		}
	}

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

	ll ans=0;
	for(int i=1;i<=N;i++) {
		if(degs[i]==0) {
			dfs(i,0);
			for(auto [pos,val]:dp[find(i)]) 
				ans+=val;
		}
	}

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

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 16728 KB Output is correct
2 Correct 4 ms 16732 KB Output is correct
3 Correct 3 ms 16732 KB Output is correct
4 Correct 3 ms 16728 KB Output is correct
5 Correct 10 ms 17244 KB Output is correct
6 Correct 8 ms 17240 KB Output is correct
7 Correct 8 ms 17244 KB Output is correct
8 Correct 7 ms 17244 KB Output is correct
9 Correct 8 ms 17244 KB Output is correct
10 Correct 7 ms 17352 KB Output is correct
11 Correct 8 ms 17244 KB Output is correct
12 Correct 7 ms 17500 KB Output is correct
13 Correct 7 ms 17756 KB Output is correct
14 Correct 7 ms 17244 KB Output is correct
15 Correct 6 ms 17240 KB Output is correct
16 Correct 7 ms 17244 KB Output is correct
17 Correct 9 ms 17244 KB Output is correct
18 Correct 9 ms 17244 KB Output is correct
19 Correct 6 ms 17500 KB Output is correct
20 Correct 6 ms 17500 KB Output is correct
21 Correct 6 ms 17584 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 17500 KB Output is correct
26 Correct 5 ms 17500 KB Output is correct
27 Correct 6 ms 17500 KB Output is correct
28 Correct 6 ms 17500 KB Output is correct
29 Correct 6 ms 17756 KB Output is correct
30 Correct 6 ms 17656 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 4 ms 16728 KB Output is correct
2 Correct 4 ms 16732 KB Output is correct
3 Correct 3 ms 16732 KB Output is correct
4 Correct 3 ms 16728 KB Output is correct
5 Correct 10 ms 17244 KB Output is correct
6 Correct 8 ms 17240 KB Output is correct
7 Correct 8 ms 17244 KB Output is correct
8 Correct 7 ms 17244 KB Output is correct
9 Correct 8 ms 17244 KB Output is correct
10 Correct 7 ms 17352 KB Output is correct
11 Correct 8 ms 17244 KB Output is correct
12 Correct 7 ms 17500 KB Output is correct
13 Correct 7 ms 17756 KB Output is correct
14 Correct 7 ms 17244 KB Output is correct
15 Correct 6 ms 17240 KB Output is correct
16 Correct 7 ms 17244 KB Output is correct
17 Correct 9 ms 17244 KB Output is correct
18 Correct 9 ms 17244 KB Output is correct
19 Correct 6 ms 17500 KB Output is correct
20 Correct 6 ms 17500 KB Output is correct
21 Correct 6 ms 17584 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 17500 KB Output is correct
26 Correct 5 ms 17500 KB Output is correct
27 Correct 6 ms 17500 KB Output is correct
28 Correct 6 ms 17500 KB Output is correct
29 Correct 6 ms 17756 KB Output is correct
30 Correct 6 ms 17656 KB Output is correct
31 Correct 6 ms 17756 KB Output is correct
32 Correct 7 ms 17244 KB Output is correct
33 Correct 223 ms 34792 KB Output is correct
34 Correct 236 ms 33616 KB Output is correct
35 Correct 244 ms 32768 KB Output is correct
36 Correct 216 ms 33876 KB Output is correct
37 Correct 248 ms 36024 KB Output is correct
38 Correct 237 ms 34896 KB Output is correct
39 Correct 128 ms 50512 KB Output is correct
40 Correct 138 ms 51072 KB Output is correct
41 Correct 136 ms 53472 KB Output is correct
42 Correct 125 ms 37972 KB Output is correct
43 Correct 124 ms 38224 KB Output is correct
44 Correct 203 ms 34520 KB Output is correct
45 Correct 208 ms 34524 KB Output is correct
46 Correct 248 ms 39148 KB Output is correct
47 Correct 151 ms 41784 KB Output is correct
48 Correct 176 ms 45548 KB Output is correct
49 Correct 155 ms 46036 KB Output is correct
50 Correct 127 ms 32460 KB Output is correct
51 Correct 125 ms 32376 KB Output is correct
52 Correct 156 ms 42336 KB Output is correct
53 Correct 201 ms 46284 KB Output is correct
54 Correct 80 ms 50516 KB Output is correct
55 Correct 125 ms 44112 KB Output is correct
56 Correct 119 ms 52304 KB Output is correct
57 Correct 125 ms 56512 KB Output is correct
58 Correct 144 ms 56744 KB Output is correct
59 Correct 147 ms 56552 KB Output is correct

Subtask #3
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 16728 KB Output is correct
2 Correct 4 ms 16732 KB Output is correct
3 Correct 3 ms 16732 KB Output is correct
4 Correct 3 ms 16728 KB Output is correct
5 Correct 10 ms 17244 KB Output is correct
6 Correct 8 ms 17240 KB Output is correct
7 Correct 8 ms 17244 KB Output is correct
8 Correct 7 ms 17244 KB Output is correct
9 Correct 8 ms 17244 KB Output is correct
10 Correct 7 ms 17352 KB Output is correct
11 Correct 8 ms 17244 KB Output is correct
12 Correct 7 ms 17500 KB Output is correct
13 Correct 7 ms 17756 KB Output is correct
14 Correct 7 ms 17244 KB Output is correct
15 Correct 6 ms 17240 KB Output is correct
16 Correct 7 ms 17244 KB Output is correct
17 Correct 9 ms 17244 KB Output is correct
18 Correct 9 ms 17244 KB Output is correct
19 Correct 6 ms 17500 KB Output is correct
20 Correct 6 ms 17500 KB Output is correct
21 Correct 6 ms 17584 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 17500 KB Output is correct
26 Correct 5 ms 17500 KB Output is correct
27 Correct 6 ms 17500 KB Output is correct
28 Correct 6 ms 17500 KB Output is correct
29 Correct 6 ms 17756 KB Output is correct
30 Correct 6 ms 17656 KB Output is correct
31 Correct 6 ms 17756 KB Output is correct
32 Correct 7 ms 17244 KB Output is correct
33 Correct 223 ms 34792 KB Output is correct
34 Correct 236 ms 33616 KB Output is correct
35 Correct 244 ms 32768 KB Output is correct
36 Correct 216 ms 33876 KB Output is correct
37 Correct 248 ms 36024 KB Output is correct
38 Correct 237 ms 34896 KB Output is correct
39 Correct 128 ms 50512 KB Output is correct
40 Correct 138 ms 51072 KB Output is correct
41 Correct 136 ms 53472 KB Output is correct
42 Correct 125 ms 37972 KB Output is correct
43 Correct 124 ms 38224 KB Output is correct
44 Correct 203 ms 34520 KB Output is correct
45 Correct 208 ms 34524 KB Output is correct
46 Correct 248 ms 39148 KB Output is correct
47 Correct 151 ms 41784 KB Output is correct
48 Correct 176 ms 45548 KB Output is correct
49 Correct 155 ms 46036 KB Output is correct
50 Correct 127 ms 32460 KB Output is correct
51 Correct 125 ms 32376 KB Output is correct
52 Correct 156 ms 42336 KB Output is correct
53 Correct 201 ms 46284 KB Output is correct
54 Correct 80 ms 50516 KB Output is correct
55 Correct 125 ms 44112 KB Output is correct
56 Correct 119 ms 52304 KB Output is correct
57 Correct 125 ms 56512 KB Output is correct
58 Correct 144 ms 56744 KB Output is correct
59 Correct 147 ms 56552 KB Output is correct
60 Correct 4 ms 16732 KB Output is correct
61 Incorrect 4 ms 16732 KB Output isn't correct
62 Halted 0 ms 0 KB -