답안 #980601

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
980601	2024-05-12T09:14:54 Z	happy_node	Worst Reporter 4 (JOI21_worst_reporter4)	C++17	79 / 100	278 ms	57584 KB

worst_reporter2

#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 prv=-1;
	for(auto u:adj[v]) {
		dfs(u);
		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],head[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) {
		vector<int> cyc;
		for(int i=stk.size()-1;i>=0;i--) {
			cyc.push_back(stk[i]);
			if(stk[i]==A[v]) break;
		}

		sort(cyc.begin(),cyc.end(),[&](int i, int j){
			return i>j;
		});

		for(int i=0;i+1<cyc.size();i++) {
			head[cyc[i+1]]=cyc.back();
			A[cyc[i+1]]=cyc[i];
		}
		head[cyc[0]]=cyc.back();
		A[cyc[0]]=cyc[0];
	}

	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++) {
		head[i]=i;
		if(onstk[i]==2) continue;
		dfs0(i);
	}

	// for(int i=1;i<=N;i++) {
	// 	cout<<A[i]<<" -> "<<i<<'\n';
	// 	cout<<head[A[i]]<<" "<<head[i]<<'\n';
	// }

	for(int i=1;i<=N;i++) {
		if(A[i]!=i) {
			if(head[A[i]]!=head[i]) {
				adj[head[A[i]]].push_back(head[i]);
				degs[head[i]]+=1;
			} else { 
				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);
			for(auto [pos,val]:dp[find(i)]) 
				ans+=val;
		}
	}

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

Compilation message

worst_reporter2.cpp: In function 'void dfs0(int)':
worst_reporter2.cpp:91:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   91 |   for(int i=0;i+1<cyc.size();i++) {
      |               ~~~^~~~~~~~~~~

Subtask #1
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	16728 KB	Output is correct
2	Correct	3 ms	16728 KB	Output is correct
3	Correct	3 ms	16732 KB	Output is correct
4	Correct	3 ms	16824 KB	Output is correct
5	Correct	6 ms	17244 KB	Output is correct
6	Correct	7 ms	17244 KB	Output is correct
7	Correct	7 ms	17244 KB	Output is correct
8	Correct	7 ms	17244 KB	Output is correct
9	Correct	7 ms	17240 KB	Output is correct
10	Correct	7 ms	17244 KB	Output is correct
11	Correct	9 ms	17244 KB	Output is correct
12	Correct	8 ms	17756 KB	Output is correct
13	Correct	6 ms	17756 KB	Output is correct
14	Correct	6 ms	17436 KB	Output is correct
15	Correct	6 ms	17244 KB	Output is correct
16	Correct	7 ms	17244 KB	Output is correct
17	Correct	7 ms	17244 KB	Output is correct
18	Correct	8 ms	17396 KB	Output is correct
19	Correct	6 ms	17500 KB	Output is correct
20	Correct	8 ms	17500 KB	Output is correct
21	Correct	6 ms	17752 KB	Output is correct
22	Correct	5 ms	17240 KB	Output is correct
23	Correct	5 ms	17244 KB	Output is correct
24	Correct	6 ms	17396 KB	Output is correct
25	Correct	7 ms	17496 KB	Output is correct
26	Correct	7 ms	17500 KB	Output is correct
27	Correct	6 ms	17496 KB	Output is correct
28	Correct	6 ms	17500 KB	Output is correct
29	Correct	7 ms	17756 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

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	16728 KB	Output is correct
2	Correct	3 ms	16728 KB	Output is correct
3	Correct	3 ms	16732 KB	Output is correct
4	Correct	3 ms	16824 KB	Output is correct
5	Correct	6 ms	17244 KB	Output is correct
6	Correct	7 ms	17244 KB	Output is correct
7	Correct	7 ms	17244 KB	Output is correct
8	Correct	7 ms	17244 KB	Output is correct
9	Correct	7 ms	17240 KB	Output is correct
10	Correct	7 ms	17244 KB	Output is correct
11	Correct	9 ms	17244 KB	Output is correct
12	Correct	8 ms	17756 KB	Output is correct
13	Correct	6 ms	17756 KB	Output is correct
14	Correct	6 ms	17436 KB	Output is correct
15	Correct	6 ms	17244 KB	Output is correct
16	Correct	7 ms	17244 KB	Output is correct
17	Correct	7 ms	17244 KB	Output is correct
18	Correct	8 ms	17396 KB	Output is correct
19	Correct	6 ms	17500 KB	Output is correct
20	Correct	8 ms	17500 KB	Output is correct
21	Correct	6 ms	17752 KB	Output is correct
22	Correct	5 ms	17240 KB	Output is correct
23	Correct	5 ms	17244 KB	Output is correct
24	Correct	6 ms	17396 KB	Output is correct
25	Correct	7 ms	17496 KB	Output is correct
26	Correct	7 ms	17500 KB	Output is correct
27	Correct	6 ms	17496 KB	Output is correct
28	Correct	6 ms	17500 KB	Output is correct
29	Correct	7 ms	17756 KB	Output is correct
30	Correct	6 ms	17756 KB	Output is correct
31	Correct	6 ms	17756 KB	Output is correct
32	Correct	6 ms	17244 KB	Output is correct
33	Correct	232 ms	35628 KB	Output is correct
34	Correct	229 ms	34400 KB	Output is correct
35	Correct	211 ms	33424 KB	Output is correct
36	Correct	220 ms	34640 KB	Output is correct
37	Correct	227 ms	36860 KB	Output is correct
38	Correct	242 ms	35664 KB	Output is correct
39	Correct	133 ms	51344 KB	Output is correct
40	Correct	137 ms	51280 KB	Output is correct
41	Correct	134 ms	54356 KB	Output is correct
42	Correct	123 ms	39544 KB	Output is correct
43	Correct	152 ms	38808 KB	Output is correct
44	Correct	207 ms	35412 KB	Output is correct
45	Correct	221 ms	35408 KB	Output is correct
46	Correct	278 ms	39784 KB	Output is correct
47	Correct	159 ms	42576 KB	Output is correct
48	Correct	190 ms	46416 KB	Output is correct
49	Correct	155 ms	46932 KB	Output is correct
50	Correct	136 ms	33232 KB	Output is correct
51	Correct	143 ms	33224 KB	Output is correct
52	Correct	156 ms	43208 KB	Output is correct
53	Correct	187 ms	47048 KB	Output is correct
54	Correct	86 ms	51280 KB	Output is correct
55	Correct	130 ms	44980 KB	Output is correct
56	Correct	123 ms	53072 KB	Output is correct
57	Correct	122 ms	57168 KB	Output is correct
58	Correct	152 ms	57584 KB	Output is correct
59	Correct	182 ms	57428 KB	Output is correct

Subtask #3
0 / 21.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	16728 KB	Output is correct
2	Correct	3 ms	16728 KB	Output is correct
3	Correct	3 ms	16732 KB	Output is correct
4	Correct	3 ms	16824 KB	Output is correct
5	Correct	6 ms	17244 KB	Output is correct
6	Correct	7 ms	17244 KB	Output is correct
7	Correct	7 ms	17244 KB	Output is correct
8	Correct	7 ms	17244 KB	Output is correct
9	Correct	7 ms	17240 KB	Output is correct
10	Correct	7 ms	17244 KB	Output is correct
11	Correct	9 ms	17244 KB	Output is correct
12	Correct	8 ms	17756 KB	Output is correct
13	Correct	6 ms	17756 KB	Output is correct
14	Correct	6 ms	17436 KB	Output is correct
15	Correct	6 ms	17244 KB	Output is correct
16	Correct	7 ms	17244 KB	Output is correct
17	Correct	7 ms	17244 KB	Output is correct
18	Correct	8 ms	17396 KB	Output is correct
19	Correct	6 ms	17500 KB	Output is correct
20	Correct	8 ms	17500 KB	Output is correct
21	Correct	6 ms	17752 KB	Output is correct
22	Correct	5 ms	17240 KB	Output is correct
23	Correct	5 ms	17244 KB	Output is correct
24	Correct	6 ms	17396 KB	Output is correct
25	Correct	7 ms	17496 KB	Output is correct
26	Correct	7 ms	17500 KB	Output is correct
27	Correct	6 ms	17496 KB	Output is correct
28	Correct	6 ms	17500 KB	Output is correct
29	Correct	7 ms	17756 KB	Output is correct
30	Correct	6 ms	17756 KB	Output is correct
31	Correct	6 ms	17756 KB	Output is correct
32	Correct	6 ms	17244 KB	Output is correct
33	Correct	232 ms	35628 KB	Output is correct
34	Correct	229 ms	34400 KB	Output is correct
35	Correct	211 ms	33424 KB	Output is correct
36	Correct	220 ms	34640 KB	Output is correct
37	Correct	227 ms	36860 KB	Output is correct
38	Correct	242 ms	35664 KB	Output is correct
39	Correct	133 ms	51344 KB	Output is correct
40	Correct	137 ms	51280 KB	Output is correct
41	Correct	134 ms	54356 KB	Output is correct
42	Correct	123 ms	39544 KB	Output is correct
43	Correct	152 ms	38808 KB	Output is correct
44	Correct	207 ms	35412 KB	Output is correct
45	Correct	221 ms	35408 KB	Output is correct
46	Correct	278 ms	39784 KB	Output is correct
47	Correct	159 ms	42576 KB	Output is correct
48	Correct	190 ms	46416 KB	Output is correct
49	Correct	155 ms	46932 KB	Output is correct
50	Correct	136 ms	33232 KB	Output is correct
51	Correct	143 ms	33224 KB	Output is correct
52	Correct	156 ms	43208 KB	Output is correct
53	Correct	187 ms	47048 KB	Output is correct
54	Correct	86 ms	51280 KB	Output is correct
55	Correct	130 ms	44980 KB	Output is correct
56	Correct	123 ms	53072 KB	Output is correct
57	Correct	122 ms	57168 KB	Output is correct
58	Correct	152 ms	57584 KB	Output is correct
59	Correct	182 ms	57428 KB	Output is correct
60	Incorrect	3 ms	16728 KB	Output isn't correct
61	Halted	0 ms	0 KB	-

답안 #980601

Compilation message

Subtask #1 14.0 / 14.0

Subtask #2 65.0 / 65.0

Subtask #3 0 / 21.0

Subtask #1
14.0 / 14.0

Subtask #2
65.0 / 65.0

Subtask #3
0 / 21.0