답안 #980583

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
980583	2024-05-12T09:03:06 Z	happy_node	Worst Reporter 4 (JOI21_worst_reporter4)	C++17	79 / 100	273 ms	57556 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 H[i]>H[j];
		});

		for(int i=0;i+1<cyc.size();i++) {
			head[cyc[i+1]]=cyc[0];
			A[cyc[i+1]]=cyc[i];
		}
		head[cyc[0]]=cyc[0];
		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	16732 KB	Output is correct
2	Correct	3 ms	16732 KB	Output is correct
3	Correct	3 ms	16732 KB	Output is correct
4	Correct	4 ms	16732 KB	Output is correct
5	Correct	9 ms	17264 KB	Output is correct
6	Correct	7 ms	17240 KB	Output is correct
7	Correct	7 ms	17240 KB	Output is correct
8	Correct	7 ms	17240 KB	Output is correct
9	Correct	7 ms	17244 KB	Output is correct
10	Correct	7 ms	17336 KB	Output is correct
11	Correct	7 ms	17244 KB	Output is correct
12	Correct	8 ms	17500 KB	Output is correct
13	Correct	6 ms	17660 KB	Output is correct
14	Correct	8 ms	17444 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	8 ms	17244 KB	Output is correct
19	Correct	6 ms	17340 KB	Output is correct
20	Correct	6 ms	17500 KB	Output is correct
21	Correct	6 ms	17500 KB	Output is correct
22	Correct	5 ms	17244 KB	Output is correct
23	Correct	7 ms	17104 KB	Output is correct
24	Correct	6 ms	17496 KB	Output is correct
25	Correct	6 ms	17500 KB	Output is correct
26	Correct	5 ms	17748 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	7 ms	17756 KB	Output is correct
31	Correct	7 ms	18012 KB	Output is correct

Subtask #2
65.0 / 65.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	16732 KB	Output is correct
2	Correct	3 ms	16732 KB	Output is correct
3	Correct	3 ms	16732 KB	Output is correct
4	Correct	4 ms	16732 KB	Output is correct
5	Correct	9 ms	17264 KB	Output is correct
6	Correct	7 ms	17240 KB	Output is correct
7	Correct	7 ms	17240 KB	Output is correct
8	Correct	7 ms	17240 KB	Output is correct
9	Correct	7 ms	17244 KB	Output is correct
10	Correct	7 ms	17336 KB	Output is correct
11	Correct	7 ms	17244 KB	Output is correct
12	Correct	8 ms	17500 KB	Output is correct
13	Correct	6 ms	17660 KB	Output is correct
14	Correct	8 ms	17444 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	8 ms	17244 KB	Output is correct
19	Correct	6 ms	17340 KB	Output is correct
20	Correct	6 ms	17500 KB	Output is correct
21	Correct	6 ms	17500 KB	Output is correct
22	Correct	5 ms	17244 KB	Output is correct
23	Correct	7 ms	17104 KB	Output is correct
24	Correct	6 ms	17496 KB	Output is correct
25	Correct	6 ms	17500 KB	Output is correct
26	Correct	5 ms	17748 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	7 ms	17756 KB	Output is correct
31	Correct	7 ms	18012 KB	Output is correct
32	Correct	7 ms	17240 KB	Output is correct
33	Correct	219 ms	35568 KB	Output is correct
34	Correct	222 ms	34292 KB	Output is correct
35	Correct	233 ms	33548 KB	Output is correct
36	Correct	215 ms	34720 KB	Output is correct
37	Correct	224 ms	36836 KB	Output is correct
38	Correct	244 ms	35700 KB	Output is correct
39	Correct	131 ms	51280 KB	Output is correct
40	Correct	135 ms	51348 KB	Output is correct
41	Correct	139 ms	54308 KB	Output is correct
42	Correct	123 ms	38860 KB	Output is correct
43	Correct	136 ms	38992 KB	Output is correct
44	Correct	207 ms	35404 KB	Output is correct
45	Correct	209 ms	35260 KB	Output is correct
46	Correct	273 ms	39760 KB	Output is correct
47	Correct	158 ms	42516 KB	Output is correct
48	Correct	181 ms	46416 KB	Output is correct
49	Correct	177 ms	46932 KB	Output is correct
50	Correct	140 ms	33228 KB	Output is correct
51	Correct	145 ms	33264 KB	Output is correct
52	Correct	159 ms	43212 KB	Output is correct
53	Correct	201 ms	47236 KB	Output is correct
54	Correct	80 ms	51076 KB	Output is correct
55	Correct	139 ms	45052 KB	Output is correct
56	Correct	120 ms	53252 KB	Output is correct
57	Correct	152 ms	57096 KB	Output is correct
58	Correct	150 ms	57420 KB	Output is correct
59	Correct	150 ms	57556 KB	Output is correct

Subtask #3
0 / 21.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	16732 KB	Output is correct
2	Correct	3 ms	16732 KB	Output is correct
3	Correct	3 ms	16732 KB	Output is correct
4	Correct	4 ms	16732 KB	Output is correct
5	Correct	9 ms	17264 KB	Output is correct
6	Correct	7 ms	17240 KB	Output is correct
7	Correct	7 ms	17240 KB	Output is correct
8	Correct	7 ms	17240 KB	Output is correct
9	Correct	7 ms	17244 KB	Output is correct
10	Correct	7 ms	17336 KB	Output is correct
11	Correct	7 ms	17244 KB	Output is correct
12	Correct	8 ms	17500 KB	Output is correct
13	Correct	6 ms	17660 KB	Output is correct
14	Correct	8 ms	17444 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	8 ms	17244 KB	Output is correct
19	Correct	6 ms	17340 KB	Output is correct
20	Correct	6 ms	17500 KB	Output is correct
21	Correct	6 ms	17500 KB	Output is correct
22	Correct	5 ms	17244 KB	Output is correct
23	Correct	7 ms	17104 KB	Output is correct
24	Correct	6 ms	17496 KB	Output is correct
25	Correct	6 ms	17500 KB	Output is correct
26	Correct	5 ms	17748 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	7 ms	17756 KB	Output is correct
31	Correct	7 ms	18012 KB	Output is correct
32	Correct	7 ms	17240 KB	Output is correct
33	Correct	219 ms	35568 KB	Output is correct
34	Correct	222 ms	34292 KB	Output is correct
35	Correct	233 ms	33548 KB	Output is correct
36	Correct	215 ms	34720 KB	Output is correct
37	Correct	224 ms	36836 KB	Output is correct
38	Correct	244 ms	35700 KB	Output is correct
39	Correct	131 ms	51280 KB	Output is correct
40	Correct	135 ms	51348 KB	Output is correct
41	Correct	139 ms	54308 KB	Output is correct
42	Correct	123 ms	38860 KB	Output is correct
43	Correct	136 ms	38992 KB	Output is correct
44	Correct	207 ms	35404 KB	Output is correct
45	Correct	209 ms	35260 KB	Output is correct
46	Correct	273 ms	39760 KB	Output is correct
47	Correct	158 ms	42516 KB	Output is correct
48	Correct	181 ms	46416 KB	Output is correct
49	Correct	177 ms	46932 KB	Output is correct
50	Correct	140 ms	33228 KB	Output is correct
51	Correct	145 ms	33264 KB	Output is correct
52	Correct	159 ms	43212 KB	Output is correct
53	Correct	201 ms	47236 KB	Output is correct
54	Correct	80 ms	51076 KB	Output is correct
55	Correct	139 ms	45052 KB	Output is correct
56	Correct	120 ms	53252 KB	Output is correct
57	Correct	152 ms	57096 KB	Output is correct
58	Correct	150 ms	57420 KB	Output is correct
59	Correct	150 ms	57556 KB	Output is correct
60	Correct	4 ms	16728 KB	Output is correct
61	Correct	3 ms	16744 KB	Output is correct
62	Correct	3 ms	16732 KB	Output is correct
63	Correct	4 ms	16732 KB	Output is correct
64	Incorrect	235 ms	32600 KB	Output isn't correct
65	Halted	0 ms	0 KB	-

답안 #980583

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