답안 #878400

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
878400	2023-11-24T10:01:43 Z	amirhoseinfar1385	조이터에서 친구를 만드는건 재밌어 (JOI20_joitter2)	C++17	100 / 100	375 ms	43088 KB

joitter2

#include<bits/stdc++.h>
using namespace std;
const int maxn=100000+10;
int n,m; 
struct dsu{
	int par[maxn],sz[maxn];
	set<pair<int,int>>kho[maxn];
	set<int>vorod[maxn];
	long long res;
	dsu(){
		res=0;
		for(int i=1;i<maxn;i++){
			par[i]=i;
			sz[i]=1;
		}
	}
	int root(int u){
		if(u==par[u])return u;
		return par[u]=root(par[u]);
	}
	void con(int u,int v){
		u=root(u),v=root(v);
		if(sz[u]>sz[v])swap(u,v);
		vector<pair<int,int>>allq;
		for(auto x:kho[u]){
			res-=sz[x.first];
			vorod[x.first].erase(x.second);
			allq.push_back(make_pair(x.second,x.first));
		}
		res+=sz[u]*(2*sz[v]+vorod[v].size());
		res-=sz[u]*vorod[u].size();
		for(auto x:vorod[u]){
			int rootx=root(x);
			kho[rootx].erase(make_pair(u,x));
			allq.push_back(make_pair(x,u));
		}
		vorod[u].clear();
		kho[u].clear();
		par[u]=v;
		sz[v]+=sz[u];
		for(auto x:allq){
			add(x.first,x.second);
		}
	}
	void add(int u,int v){
		int rootv=root(v),rootu=root(u);
		if(rootu==rootv||vorod[rootv].count(u)!=0)return ;
		auto x=kho[rootv].lower_bound(make_pair(rootu,-1));
		if(x!=kho[rootv].end()&&(*x).first==rootu)return con(u,v);
		res+=sz[rootv];
		kho[rootu].insert(make_pair(rootv,u));
		vorod[rootv].insert(u);
	}
}ds;
int main(){
	ios::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	cin>>n>>m;
	for(int i=1;i<=m;i++){
		int u,v;cin>>u>>v;
		ds.add(u,v);
		cout<<ds.res<<"\n";
	}	
}

Subtask #1
1.0 / 1.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	10844 KB	Output is correct
2	Correct	3 ms	10588 KB	Output is correct
3	Correct	3 ms	10588 KB	Output is correct
4	Correct	3 ms	10588 KB	Output is correct
5	Correct	3 ms	10588 KB	Output is correct
6	Correct	3 ms	10588 KB	Output is correct
7	Correct	3 ms	10584 KB	Output is correct
8	Correct	3 ms	10584 KB	Output is correct
9	Correct	3 ms	10588 KB	Output is correct
10	Correct	2 ms	10588 KB	Output is correct
11	Correct	3 ms	10588 KB	Output is correct
12	Correct	3 ms	10540 KB	Output is correct
13	Correct	3 ms	10588 KB	Output is correct
14	Correct	3 ms	10588 KB	Output is correct
15	Correct	3 ms	10588 KB	Output is correct
16	Correct	3 ms	10588 KB	Output is correct
17	Correct	3 ms	10588 KB	Output is correct
18	Correct	2 ms	10588 KB	Output is correct
19	Correct	3 ms	10588 KB	Output is correct
20	Correct	4 ms	10844 KB	Output is correct
21	Correct	3 ms	10588 KB	Output is correct
22	Correct	3 ms	10588 KB	Output is correct
23	Correct	3 ms	10588 KB	Output is correct
24	Correct	3 ms	10632 KB	Output is correct
25	Correct	3 ms	10588 KB	Output is correct
26	Correct	3 ms	10588 KB	Output is correct
27	Correct	3 ms	10588 KB	Output is correct
28	Correct	3 ms	10588 KB	Output is correct
29	Correct	3 ms	10588 KB	Output is correct
30	Correct	3 ms	10588 KB	Output is correct
31	Correct	3 ms	10588 KB	Output is correct
32	Correct	3 ms	10588 KB	Output is correct
33	Correct	3 ms	10588 KB	Output is correct

Subtask #2
16.0 / 16.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	10844 KB	Output is correct
2	Correct	3 ms	10588 KB	Output is correct
3	Correct	3 ms	10588 KB	Output is correct
4	Correct	3 ms	10588 KB	Output is correct
5	Correct	3 ms	10588 KB	Output is correct
6	Correct	3 ms	10588 KB	Output is correct
7	Correct	3 ms	10584 KB	Output is correct
8	Correct	3 ms	10584 KB	Output is correct
9	Correct	3 ms	10588 KB	Output is correct
10	Correct	2 ms	10588 KB	Output is correct
11	Correct	3 ms	10588 KB	Output is correct
12	Correct	3 ms	10540 KB	Output is correct
13	Correct	3 ms	10588 KB	Output is correct
14	Correct	3 ms	10588 KB	Output is correct
15	Correct	3 ms	10588 KB	Output is correct
16	Correct	3 ms	10588 KB	Output is correct
17	Correct	3 ms	10588 KB	Output is correct
18	Correct	2 ms	10588 KB	Output is correct
19	Correct	3 ms	10588 KB	Output is correct
20	Correct	4 ms	10844 KB	Output is correct
21	Correct	3 ms	10588 KB	Output is correct
22	Correct	3 ms	10588 KB	Output is correct
23	Correct	3 ms	10588 KB	Output is correct
24	Correct	3 ms	10632 KB	Output is correct
25	Correct	3 ms	10588 KB	Output is correct
26	Correct	3 ms	10588 KB	Output is correct
27	Correct	3 ms	10588 KB	Output is correct
28	Correct	3 ms	10588 KB	Output is correct
29	Correct	3 ms	10588 KB	Output is correct
30	Correct	3 ms	10588 KB	Output is correct
31	Correct	3 ms	10588 KB	Output is correct
32	Correct	3 ms	10588 KB	Output is correct
33	Correct	3 ms	10588 KB	Output is correct
34	Correct	4 ms	10584 KB	Output is correct
35	Correct	56 ms	15096 KB	Output is correct
36	Correct	71 ms	17364 KB	Output is correct
37	Correct	72 ms	17488 KB	Output is correct
38	Correct	69 ms	17276 KB	Output is correct
39	Correct	4 ms	10688 KB	Output is correct
40	Correct	5 ms	10744 KB	Output is correct
41	Correct	5 ms	10644 KB	Output is correct
42	Correct	4 ms	10584 KB	Output is correct
43	Correct	4 ms	10588 KB	Output is correct
44	Correct	4 ms	10772 KB	Output is correct
45	Correct	4 ms	10588 KB	Output is correct
46	Correct	4 ms	10588 KB	Output is correct
47	Correct	4 ms	10776 KB	Output is correct
48	Correct	4 ms	10772 KB	Output is correct
49	Correct	9 ms	11356 KB	Output is correct
50	Correct	73 ms	17440 KB	Output is correct
51	Correct	6 ms	10840 KB	Output is correct
52	Correct	62 ms	16276 KB	Output is correct
53	Correct	8 ms	11352 KB	Output is correct
54	Correct	68 ms	16748 KB	Output is correct
55	Correct	5 ms	10840 KB	Output is correct
56	Correct	5 ms	10844 KB	Output is correct
57	Correct	5 ms	11100 KB	Output is correct
58	Correct	8 ms	11160 KB	Output is correct
59	Correct	4 ms	10588 KB	Output is correct
60	Correct	55 ms	14468 KB	Output is correct
61	Correct	5 ms	10588 KB	Output is correct
62	Correct	70 ms	17124 KB	Output is correct

Subtask #3
83.0 / 83.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	10844 KB	Output is correct
2	Correct	3 ms	10588 KB	Output is correct
3	Correct	3 ms	10588 KB	Output is correct
4	Correct	3 ms	10588 KB	Output is correct
5	Correct	3 ms	10588 KB	Output is correct
6	Correct	3 ms	10588 KB	Output is correct
7	Correct	3 ms	10584 KB	Output is correct
8	Correct	3 ms	10584 KB	Output is correct
9	Correct	3 ms	10588 KB	Output is correct
10	Correct	2 ms	10588 KB	Output is correct
11	Correct	3 ms	10588 KB	Output is correct
12	Correct	3 ms	10540 KB	Output is correct
13	Correct	3 ms	10588 KB	Output is correct
14	Correct	3 ms	10588 KB	Output is correct
15	Correct	3 ms	10588 KB	Output is correct
16	Correct	3 ms	10588 KB	Output is correct
17	Correct	3 ms	10588 KB	Output is correct
18	Correct	2 ms	10588 KB	Output is correct
19	Correct	3 ms	10588 KB	Output is correct
20	Correct	4 ms	10844 KB	Output is correct
21	Correct	3 ms	10588 KB	Output is correct
22	Correct	3 ms	10588 KB	Output is correct
23	Correct	3 ms	10588 KB	Output is correct
24	Correct	3 ms	10632 KB	Output is correct
25	Correct	3 ms	10588 KB	Output is correct
26	Correct	3 ms	10588 KB	Output is correct
27	Correct	3 ms	10588 KB	Output is correct
28	Correct	3 ms	10588 KB	Output is correct
29	Correct	3 ms	10588 KB	Output is correct
30	Correct	3 ms	10588 KB	Output is correct
31	Correct	3 ms	10588 KB	Output is correct
32	Correct	3 ms	10588 KB	Output is correct
33	Correct	3 ms	10588 KB	Output is correct
34	Correct	4 ms	10584 KB	Output is correct
35	Correct	56 ms	15096 KB	Output is correct
36	Correct	71 ms	17364 KB	Output is correct
37	Correct	72 ms	17488 KB	Output is correct
38	Correct	69 ms	17276 KB	Output is correct
39	Correct	4 ms	10688 KB	Output is correct
40	Correct	5 ms	10744 KB	Output is correct
41	Correct	5 ms	10644 KB	Output is correct
42	Correct	4 ms	10584 KB	Output is correct
43	Correct	4 ms	10588 KB	Output is correct
44	Correct	4 ms	10772 KB	Output is correct
45	Correct	4 ms	10588 KB	Output is correct
46	Correct	4 ms	10588 KB	Output is correct
47	Correct	4 ms	10776 KB	Output is correct
48	Correct	4 ms	10772 KB	Output is correct
49	Correct	9 ms	11356 KB	Output is correct
50	Correct	73 ms	17440 KB	Output is correct
51	Correct	6 ms	10840 KB	Output is correct
52	Correct	62 ms	16276 KB	Output is correct
53	Correct	8 ms	11352 KB	Output is correct
54	Correct	68 ms	16748 KB	Output is correct
55	Correct	5 ms	10840 KB	Output is correct
56	Correct	5 ms	10844 KB	Output is correct
57	Correct	5 ms	11100 KB	Output is correct
58	Correct	8 ms	11160 KB	Output is correct
59	Correct	4 ms	10588 KB	Output is correct
60	Correct	55 ms	14468 KB	Output is correct
61	Correct	5 ms	10588 KB	Output is correct
62	Correct	70 ms	17124 KB	Output is correct
63	Correct	253 ms	43088 KB	Output is correct
64	Correct	240 ms	42732 KB	Output is correct
65	Correct	244 ms	42704 KB	Output is correct
66	Correct	64 ms	13904 KB	Output is correct
67	Correct	102 ms	17748 KB	Output is correct
68	Correct	60 ms	14104 KB	Output is correct
69	Correct	149 ms	18940 KB	Output is correct
70	Correct	58 ms	13904 KB	Output is correct
71	Correct	64 ms	13840 KB	Output is correct
72	Correct	130 ms	18284 KB	Output is correct
73	Correct	124 ms	17868 KB	Output is correct
74	Correct	375 ms	28372 KB	Output is correct
75	Correct	228 ms	22864 KB	Output is correct
76	Correct	296 ms	25936 KB	Output is correct
77	Correct	290 ms	26196 KB	Output is correct
78	Correct	95 ms	18076 KB	Output is correct
79	Correct	174 ms	20648 KB	Output is correct
80	Correct	99 ms	18140 KB	Output is correct
81	Correct	158 ms	20272 KB	Output is correct
82	Correct	311 ms	31932 KB	Output is correct
83	Correct	288 ms	31828 KB	Output is correct
84	Correct	280 ms	32384 KB	Output is correct
85	Correct	265 ms	32588 KB	Output is correct
86	Correct	57 ms	13016 KB	Output is correct
87	Correct	97 ms	15088 KB	Output is correct
88	Correct	122 ms	18000 KB	Output is correct
89	Correct	278 ms	23172 KB	Output is correct

답안 #878400

Compilation message

Subtask #1 1.0 / 1.0

Subtask #2 16.0 / 16.0

Subtask #3 83.0 / 83.0

Subtask #1
1.0 / 1.0

Subtask #2
16.0 / 16.0

Subtask #3
83.0 / 83.0