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답안 #878394

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
878394 2023-11-24T09:54:32 Z amirhoseinfar1385 조이터에서 친구를 만드는건 재밌어 (JOI20_joitter2) C++17
100 / 100
 366 ms 40928 KB 
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2")
#include<bits/stdc++.h>
//tof_to_in_zendegy_ke_man_eshtebahy_ye_soal_dg_hal_kardam
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 3 ms 11052 KB Output is correct
2 Correct 2 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 4 ms 10584 KB Output is correct
9 Correct 3 ms 10584 KB Output is correct
10 Correct 2 ms 10588 KB Output is correct
11 Correct 3 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 2 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 2 ms 10436 KB Output is correct
18 Correct 3 ms 10588 KB Output is correct
19 Correct 2 ms 10588 KB Output is correct
20 Correct 2 ms 10588 KB Output is correct
21 Correct 3 ms 10588 KB Output is correct
22 Correct 3 ms 11096 KB Output is correct
23 Correct 3 ms 10588 KB Output is correct
24 Correct 3 ms 10588 KB Output is correct
25 Correct 3 ms 10588 KB Output is correct
26 Correct 2 ms 10588 KB Output is correct
27 Correct 3 ms 10588 KB Output is correct
28 Correct 2 ms 10588 KB Output is correct
29 Correct 2 ms 10424 KB Output is correct
30 Correct 3 ms 10588 KB Output is correct
31 Correct 3 ms 10588 KB Output is correct
32 Correct 2 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 3 ms 11052 KB Output is correct
2 Correct 2 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 4 ms 10584 KB Output is correct
9 Correct 3 ms 10584 KB Output is correct
10 Correct 2 ms 10588 KB Output is correct
11 Correct 3 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 2 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 2 ms 10436 KB Output is correct
18 Correct 3 ms 10588 KB Output is correct
19 Correct 2 ms 10588 KB Output is correct
20 Correct 2 ms 10588 KB Output is correct
21 Correct 3 ms 10588 KB Output is correct
22 Correct 3 ms 11096 KB Output is correct
23 Correct 3 ms 10588 KB Output is correct
24 Correct 3 ms 10588 KB Output is correct
25 Correct 3 ms 10588 KB Output is correct
26 Correct 2 ms 10588 KB Output is correct
27 Correct 3 ms 10588 KB Output is correct
28 Correct 2 ms 10588 KB Output is correct
29 Correct 2 ms 10424 KB Output is correct
30 Correct 3 ms 10588 KB Output is correct
31 Correct 3 ms 10588 KB Output is correct
32 Correct 2 ms 10588 KB Output is correct
33 Correct 3 ms 10588 KB Output is correct
34 Correct 5 ms 10588 KB Output is correct
35 Correct 55 ms 13768 KB Output is correct
36 Correct 73 ms 15712 KB Output is correct
37 Correct 71 ms 15788 KB Output is correct
38 Correct 69 ms 15444 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 10588 KB Output is correct
42 Correct 3 ms 10428 KB Output is correct
43 Correct 4 ms 10588 KB Output is correct
44 Correct 4 ms 10588 KB Output is correct
45 Correct 4 ms 10584 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 10668 KB Output is correct
49 Correct 8 ms 11100 KB Output is correct
50 Correct 72 ms 15844 KB Output is correct
51 Correct 6 ms 10844 KB Output is correct
52 Correct 62 ms 14420 KB Output is correct
53 Correct 8 ms 11100 KB Output is correct
54 Correct 66 ms 15280 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 10844 KB Output is correct
58 Correct 5 ms 11028 KB Output is correct
59 Correct 4 ms 10588 KB Output is correct
60 Correct 55 ms 12880 KB Output is correct
61 Correct 6 ms 10588 KB Output is correct
62 Correct 68 ms 15336 KB Output is correct

Subtask #3
83.0 / 83.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 11052 KB Output is correct
2 Correct 2 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 4 ms 10584 KB Output is correct
9 Correct 3 ms 10584 KB Output is correct
10 Correct 2 ms 10588 KB Output is correct
11 Correct 3 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 2 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 2 ms 10436 KB Output is correct
18 Correct 3 ms 10588 KB Output is correct
19 Correct 2 ms 10588 KB Output is correct
20 Correct 2 ms 10588 KB Output is correct
21 Correct 3 ms 10588 KB Output is correct
22 Correct 3 ms 11096 KB Output is correct
23 Correct 3 ms 10588 KB Output is correct
24 Correct 3 ms 10588 KB Output is correct
25 Correct 3 ms 10588 KB Output is correct
26 Correct 2 ms 10588 KB Output is correct
27 Correct 3 ms 10588 KB Output is correct
28 Correct 2 ms 10588 KB Output is correct
29 Correct 2 ms 10424 KB Output is correct
30 Correct 3 ms 10588 KB Output is correct
31 Correct 3 ms 10588 KB Output is correct
32 Correct 2 ms 10588 KB Output is correct
33 Correct 3 ms 10588 KB Output is correct
34 Correct 5 ms 10588 KB Output is correct
35 Correct 55 ms 13768 KB Output is correct
36 Correct 73 ms 15712 KB Output is correct
37 Correct 71 ms 15788 KB Output is correct
38 Correct 69 ms 15444 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 10588 KB Output is correct
42 Correct 3 ms 10428 KB Output is correct
43 Correct 4 ms 10588 KB Output is correct
44 Correct 4 ms 10588 KB Output is correct
45 Correct 4 ms 10584 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 10668 KB Output is correct
49 Correct 8 ms 11100 KB Output is correct
50 Correct 72 ms 15844 KB Output is correct
51 Correct 6 ms 10844 KB Output is correct
52 Correct 62 ms 14420 KB Output is correct
53 Correct 8 ms 11100 KB Output is correct
54 Correct 66 ms 15280 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 10844 KB Output is correct
58 Correct 5 ms 11028 KB Output is correct
59 Correct 4 ms 10588 KB Output is correct
60 Correct 55 ms 12880 KB Output is correct
61 Correct 6 ms 10588 KB Output is correct
62 Correct 68 ms 15336 KB Output is correct
63 Correct 230 ms 40740 KB Output is correct
64 Correct 230 ms 40928 KB Output is correct
65 Correct 232 ms 40548 KB Output is correct
66 Correct 59 ms 12624 KB Output is correct
67 Correct 90 ms 16468 KB Output is correct
68 Correct 56 ms 12628 KB Output is correct
69 Correct 132 ms 17236 KB Output is correct
70 Correct 56 ms 12720 KB Output is correct
71 Correct 56 ms 12556 KB Output is correct
72 Correct 115 ms 16720 KB Output is correct
73 Correct 124 ms 16692 KB Output is correct
74 Correct 366 ms 26068 KB Output is correct
75 Correct 200 ms 20904 KB Output is correct
76 Correct 264 ms 23800 KB Output is correct
77 Correct 264 ms 23968 KB Output is correct
78 Correct 87 ms 16688 KB Output is correct
79 Correct 168 ms 18736 KB Output is correct
80 Correct 96 ms 16692 KB Output is correct
81 Correct 151 ms 18456 KB Output is correct
82 Correct 280 ms 30548 KB Output is correct
83 Correct 270 ms 30708 KB Output is correct
84 Correct 246 ms 31056 KB Output is correct
85 Correct 256 ms 31060 KB Output is correct
86 Correct 62 ms 11860 KB Output is correct
87 Correct 76 ms 12964 KB Output is correct
88 Correct 127 ms 16800 KB Output is correct
89 Correct 256 ms 23208 KB Output is correct