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답안 #878396

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
878396 2023-11-24T09:56:11 Z amirhoseinfar1385 조이터에서 친구를 만드는건 재밌어 (JOI20_joitter2) C++17
100 / 100
 363 ms 40984 KB 
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("sse4")
#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 2 ms 10584 KB Output is correct
2 Correct 2 ms 10584 KB Output is correct
3 Correct 3 ms 10588 KB Output is correct
4 Correct 2 ms 10588 KB Output is correct
5 Correct 2 ms 10588 KB Output is correct
6 Correct 3 ms 10588 KB Output is correct
7 Correct 3 ms 10616 KB Output is correct
8 Correct 5 ms 10844 KB Output is correct
9 Correct 3 ms 10588 KB Output is correct
10 Correct 3 ms 10588 KB Output is correct
11 Correct 2 ms 10588 KB Output is correct
12 Correct 2 ms 10588 KB Output is correct
13 Correct 2 ms 10588 KB Output is correct
14 Correct 3 ms 10584 KB Output is correct
15 Correct 3 ms 10588 KB Output is correct
16 Correct 2 ms 10436 KB Output is correct
17 Correct 2 ms 10588 KB Output is correct
18 Correct 3 ms 10544 KB Output is correct
19 Correct 3 ms 10588 KB Output is correct
20 Correct 3 ms 10588 KB Output is correct
21 Correct 3 ms 10588 KB Output is correct
22 Correct 2 ms 10588 KB Output is correct
23 Correct 3 ms 10588 KB Output is correct
24 Correct 3 ms 10588 KB Output is correct
25 Correct 4 ms 10776 KB Output is correct
26 Correct 3 ms 10584 KB Output is correct
27 Correct 3 ms 10588 KB Output is correct
28 Correct 3 ms 10588 KB Output is correct
29 Correct 2 ms 10588 KB Output is correct
30 Correct 3 ms 10432 KB Output is correct
31 Correct 3 ms 10584 KB Output is correct
32 Correct 3 ms 10588 KB Output is correct
33 Correct 3 ms 10584 KB Output is correct

Subtask #2
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 10584 KB Output is correct
2 Correct 2 ms 10584 KB Output is correct
3 Correct 3 ms 10588 KB Output is correct
4 Correct 2 ms 10588 KB Output is correct
5 Correct 2 ms 10588 KB Output is correct
6 Correct 3 ms 10588 KB Output is correct
7 Correct 3 ms 10616 KB Output is correct
8 Correct 5 ms 10844 KB Output is correct
9 Correct 3 ms 10588 KB Output is correct
10 Correct 3 ms 10588 KB Output is correct
11 Correct 2 ms 10588 KB Output is correct
12 Correct 2 ms 10588 KB Output is correct
13 Correct 2 ms 10588 KB Output is correct
14 Correct 3 ms 10584 KB Output is correct
15 Correct 3 ms 10588 KB Output is correct
16 Correct 2 ms 10436 KB Output is correct
17 Correct 2 ms 10588 KB Output is correct
18 Correct 3 ms 10544 KB Output is correct
19 Correct 3 ms 10588 KB Output is correct
20 Correct 3 ms 10588 KB Output is correct
21 Correct 3 ms 10588 KB Output is correct
22 Correct 2 ms 10588 KB Output is correct
23 Correct 3 ms 10588 KB Output is correct
24 Correct 3 ms 10588 KB Output is correct
25 Correct 4 ms 10776 KB Output is correct
26 Correct 3 ms 10584 KB Output is correct
27 Correct 3 ms 10588 KB Output is correct
28 Correct 3 ms 10588 KB Output is correct
29 Correct 2 ms 10588 KB Output is correct
30 Correct 3 ms 10432 KB Output is correct
31 Correct 3 ms 10584 KB Output is correct
32 Correct 3 ms 10588 KB Output is correct
33 Correct 3 ms 10584 KB Output is correct
34 Correct 4 ms 10588 KB Output is correct
35 Correct 54 ms 13756 KB Output is correct
36 Correct 77 ms 15768 KB Output is correct
37 Correct 70 ms 15808 KB Output is correct
38 Correct 67 ms 15440 KB Output is correct
39 Correct 3 ms 10588 KB Output is correct
40 Correct 4 ms 10588 KB Output is correct
41 Correct 4 ms 10524 KB Output is correct
42 Correct 4 ms 10588 KB Output is correct
43 Correct 4 ms 10588 KB Output is correct
44 Correct 4 ms 10692 KB Output is correct
45 Correct 4 ms 10588 KB Output is correct
46 Correct 3 ms 10584 KB Output is correct
47 Correct 4 ms 10588 KB Output is correct
48 Correct 4 ms 10588 KB Output is correct
49 Correct 8 ms 11100 KB Output is correct
50 Correct 71 ms 15772 KB Output is correct
51 Correct 6 ms 10844 KB Output is correct
52 Correct 65 ms 14468 KB Output is correct
53 Correct 8 ms 11100 KB Output is correct
54 Correct 65 ms 15056 KB Output is correct
55 Correct 5 ms 10844 KB Output is correct
56 Correct 5 ms 10844 KB Output is correct
57 Correct 5 ms 10844 KB Output is correct
58 Correct 5 ms 10844 KB Output is correct
59 Correct 3 ms 10588 KB Output is correct
60 Correct 54 ms 12884 KB Output is correct
61 Correct 5 ms 10588 KB Output is correct
62 Correct 67 ms 15308 KB Output is correct

Subtask #3
83.0 / 83.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 10584 KB Output is correct
2 Correct 2 ms 10584 KB Output is correct
3 Correct 3 ms 10588 KB Output is correct
4 Correct 2 ms 10588 KB Output is correct
5 Correct 2 ms 10588 KB Output is correct
6 Correct 3 ms 10588 KB Output is correct
7 Correct 3 ms 10616 KB Output is correct
8 Correct 5 ms 10844 KB Output is correct
9 Correct 3 ms 10588 KB Output is correct
10 Correct 3 ms 10588 KB Output is correct
11 Correct 2 ms 10588 KB Output is correct
12 Correct 2 ms 10588 KB Output is correct
13 Correct 2 ms 10588 KB Output is correct
14 Correct 3 ms 10584 KB Output is correct
15 Correct 3 ms 10588 KB Output is correct
16 Correct 2 ms 10436 KB Output is correct
17 Correct 2 ms 10588 KB Output is correct
18 Correct 3 ms 10544 KB Output is correct
19 Correct 3 ms 10588 KB Output is correct
20 Correct 3 ms 10588 KB Output is correct
21 Correct 3 ms 10588 KB Output is correct
22 Correct 2 ms 10588 KB Output is correct
23 Correct 3 ms 10588 KB Output is correct
24 Correct 3 ms 10588 KB Output is correct
25 Correct 4 ms 10776 KB Output is correct
26 Correct 3 ms 10584 KB Output is correct
27 Correct 3 ms 10588 KB Output is correct
28 Correct 3 ms 10588 KB Output is correct
29 Correct 2 ms 10588 KB Output is correct
30 Correct 3 ms 10432 KB Output is correct
31 Correct 3 ms 10584 KB Output is correct
32 Correct 3 ms 10588 KB Output is correct
33 Correct 3 ms 10584 KB Output is correct
34 Correct 4 ms 10588 KB Output is correct
35 Correct 54 ms 13756 KB Output is correct
36 Correct 77 ms 15768 KB Output is correct
37 Correct 70 ms 15808 KB Output is correct
38 Correct 67 ms 15440 KB Output is correct
39 Correct 3 ms 10588 KB Output is correct
40 Correct 4 ms 10588 KB Output is correct
41 Correct 4 ms 10524 KB Output is correct
42 Correct 4 ms 10588 KB Output is correct
43 Correct 4 ms 10588 KB Output is correct
44 Correct 4 ms 10692 KB Output is correct
45 Correct 4 ms 10588 KB Output is correct
46 Correct 3 ms 10584 KB Output is correct
47 Correct 4 ms 10588 KB Output is correct
48 Correct 4 ms 10588 KB Output is correct
49 Correct 8 ms 11100 KB Output is correct
50 Correct 71 ms 15772 KB Output is correct
51 Correct 6 ms 10844 KB Output is correct
52 Correct 65 ms 14468 KB Output is correct
53 Correct 8 ms 11100 KB Output is correct
54 Correct 65 ms 15056 KB Output is correct
55 Correct 5 ms 10844 KB Output is correct
56 Correct 5 ms 10844 KB Output is correct
57 Correct 5 ms 10844 KB Output is correct
58 Correct 5 ms 10844 KB Output is correct
59 Correct 3 ms 10588 KB Output is correct
60 Correct 54 ms 12884 KB Output is correct
61 Correct 5 ms 10588 KB Output is correct
62 Correct 67 ms 15308 KB Output is correct
63 Correct 257 ms 40984 KB Output is correct
64 Correct 235 ms 40796 KB Output is correct
65 Correct 238 ms 40640 KB Output is correct
66 Correct 53 ms 12580 KB Output is correct
67 Correct 90 ms 16632 KB Output is correct
68 Correct 59 ms 12660 KB Output is correct
69 Correct 137 ms 17488 KB Output is correct
70 Correct 61 ms 12500 KB Output is correct
71 Correct 57 ms 12632 KB Output is correct
72 Correct 110 ms 16656 KB Output is correct
73 Correct 111 ms 16940 KB Output is correct
74 Correct 363 ms 25684 KB Output is correct
75 Correct 210 ms 21068 KB Output is correct
76 Correct 263 ms 23780 KB Output is correct
77 Correct 286 ms 24028 KB Output is correct
78 Correct 86 ms 16696 KB Output is correct
79 Correct 162 ms 18576 KB Output is correct
80 Correct 98 ms 16780 KB Output is correct
81 Correct 150 ms 18324 KB Output is correct
82 Correct 289 ms 30712 KB Output is correct
83 Correct 318 ms 30480 KB Output is correct
84 Correct 302 ms 30892 KB Output is correct
85 Correct 315 ms 31316 KB Output is correct
86 Correct 64 ms 11884 KB Output is correct
87 Correct 87 ms 13012 KB Output is correct
88 Correct 157 ms 16748 KB Output is correct
89 Correct 328 ms 25416 KB Output is correct