oj.uz

답안 #933887

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
933887 2024-02-26T13:33:33 Z moonrabbit2 조이터에서 친구를 만드는건 재밌어 (JOI20_joitter2) C++17
100 / 100
 885 ms 86804 KB 
#pragma GCC optimize("O3")
//#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,sse4.1,sse4.2,popcnt,abm,mmx,avx,avx2,fma")
#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
#include "debug.h"
#else
#define debug(...) 42
#endif
using ll=long long;
const ll mod=1000000007;
const int N=100005;
int n,m;
struct UF{
	int p[N];
	ll ans=0,sz[N];
	set<int> in[N],out[N],inV[N],S[N];
	void init(){
		for(int i=1;i<=n;i++){
			p[i]=0;
			sz[i]=1;
			S[i].emplace(i);
		}
	}
	int Find(int u){
		if(!p[u]) return u;
		return p[u]=Find(p[u]);
	}
	void add(int u,int v){
		int Gu=Find(u),Gv=Find(v);
		if(Gu==Gv) return;
		if(in[Gu].count(Gv)){
			ans+=2*sz[Gu]*sz[Gv];
			ans-=sz[Gu]*inV[Gu].size();
			ans-=sz[Gv]*inV[Gv].size();
			//debug(sz[Gu],sz[Gv],inV[Gu],inV[Gv]);
			if(in[Gu].size()+out[Gu].size()+inV[Gu].size()+S[Gu].size()<in[Gv].size()+out[Gv].size()+inV[Gv].size()+S[Gv].size()) swap(Gu,Gv);
			vector<int> V1,V2;
			for(int Gw: in[Gv]){
				out[Gw].erase(Gv);
				out[Gw].emplace(Gu);
				in[Gu].emplace(Gw);
				if(out[Gu].count(Gw)) V1.emplace_back(Gw);
			}
			for(int Gw: out[Gv]){
				in[Gw].erase(Gv);
				in[Gw].emplace(Gu);
				out[Gu].emplace(Gw);
				if(in[Gu].count(Gw)) V2.emplace_back(Gw);
			}
			for(int w: inV[Gv]){
				if(!S[Gu].count(w)) inV[Gu].emplace(w);
			}
			for(int w: S[Gv]){
				S[Gu].emplace(w);
				inV[Gu].erase(w);
			}
			sz[Gu]+=sz[Gv];
			ans+=sz[Gu]*inV[Gu].size();
			//debug(sz[Gu],inV[Gu]);
			p[Gv]=Gu;
			for(int Gw: V1) add(Gw,Gv);
			for(int Gw: V2) add(Gw,Gu);
		} else if(!inV[Gv].count(u)){
			ans+=sz[Gv];
			//ug(sz[Gv]);
			in[Gv].emplace(Gu);
			out[Gu].emplace(Gv);
			inV[Gv].emplace(u);
		}
	}
}U;
int main(){
	ios::sync_with_stdio(false); cin.tie(0);
	cin>>n>>m;
	U.init();
	for(int u,v,i=1;i<=m;i++){
		cin>>u>>v;
		U.add(u,v);
		cout<<U.ans<<"\n";
	}
	return 0;
}

Subtask #1
1.0 / 1.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 20060 KB Output is correct
2 Correct 5 ms 20060 KB Output is correct
3 Correct 5 ms 20060 KB Output is correct
4 Correct 5 ms 20060 KB Output is correct
5 Correct 5 ms 20172 KB Output is correct
6 Correct 5 ms 20152 KB Output is correct
7 Correct 5 ms 20060 KB Output is correct
8 Correct 6 ms 20312 KB Output is correct
9 Correct 6 ms 20060 KB Output is correct
10 Correct 5 ms 20056 KB Output is correct
11 Correct 6 ms 20152 KB Output is correct
12 Correct 6 ms 20060 KB Output is correct
13 Correct 5 ms 20060 KB Output is correct
14 Correct 5 ms 20060 KB Output is correct
15 Correct 6 ms 20056 KB Output is correct
16 Correct 5 ms 20312 KB Output is correct
17 Correct 5 ms 20060 KB Output is correct
18 Correct 5 ms 20060 KB Output is correct
19 Correct 5 ms 20060 KB Output is correct
20 Correct 5 ms 20060 KB Output is correct
21 Correct 5 ms 20196 KB Output is correct
22 Correct 5 ms 20224 KB Output is correct
23 Correct 5 ms 20060 KB Output is correct
24 Correct 5 ms 20060 KB Output is correct
25 Correct 5 ms 20060 KB Output is correct
26 Correct 6 ms 20060 KB Output is correct
27 Correct 5 ms 20060 KB Output is correct
28 Correct 5 ms 20060 KB Output is correct
29 Correct 5 ms 20060 KB Output is correct
30 Correct 5 ms 20148 KB Output is correct
31 Correct 5 ms 20060 KB Output is correct
32 Correct 6 ms 20060 KB Output is correct
33 Correct 5 ms 20060 KB Output is correct

Subtask #2
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 20060 KB Output is correct
2 Correct 5 ms 20060 KB Output is correct
3 Correct 5 ms 20060 KB Output is correct
4 Correct 5 ms 20060 KB Output is correct
5 Correct 5 ms 20172 KB Output is correct
6 Correct 5 ms 20152 KB Output is correct
7 Correct 5 ms 20060 KB Output is correct
8 Correct 6 ms 20312 KB Output is correct
9 Correct 6 ms 20060 KB Output is correct
10 Correct 5 ms 20056 KB Output is correct
11 Correct 6 ms 20152 KB Output is correct
12 Correct 6 ms 20060 KB Output is correct
13 Correct 5 ms 20060 KB Output is correct
14 Correct 5 ms 20060 KB Output is correct
15 Correct 6 ms 20056 KB Output is correct
16 Correct 5 ms 20312 KB Output is correct
17 Correct 5 ms 20060 KB Output is correct
18 Correct 5 ms 20060 KB Output is correct
19 Correct 5 ms 20060 KB Output is correct
20 Correct 5 ms 20060 KB Output is correct
21 Correct 5 ms 20196 KB Output is correct
22 Correct 5 ms 20224 KB Output is correct
23 Correct 5 ms 20060 KB Output is correct
24 Correct 5 ms 20060 KB Output is correct
25 Correct 5 ms 20060 KB Output is correct
26 Correct 6 ms 20060 KB Output is correct
27 Correct 5 ms 20060 KB Output is correct
28 Correct 5 ms 20060 KB Output is correct
29 Correct 5 ms 20060 KB Output is correct
30 Correct 5 ms 20148 KB Output is correct
31 Correct 5 ms 20060 KB Output is correct
32 Correct 6 ms 20060 KB Output is correct
33 Correct 5 ms 20060 KB Output is correct
34 Correct 9 ms 20420 KB Output is correct
35 Correct 76 ms 26088 KB Output is correct
36 Correct 87 ms 29028 KB Output is correct
37 Correct 87 ms 29088 KB Output is correct
38 Correct 85 ms 28752 KB Output is correct
39 Correct 8 ms 20572 KB Output is correct
40 Correct 10 ms 20828 KB Output is correct
41 Correct 9 ms 20828 KB Output is correct
42 Correct 7 ms 20572 KB Output is correct
43 Correct 8 ms 20568 KB Output is correct
44 Correct 8 ms 20552 KB Output is correct
45 Correct 7 ms 20572 KB Output is correct
46 Correct 7 ms 20568 KB Output is correct
47 Correct 8 ms 20828 KB Output is correct
48 Correct 8 ms 20828 KB Output is correct
49 Correct 14 ms 21596 KB Output is correct
50 Correct 89 ms 29268 KB Output is correct
51 Correct 10 ms 20824 KB Output is correct
52 Correct 76 ms 27584 KB Output is correct
53 Correct 13 ms 21596 KB Output is correct
54 Correct 81 ms 28500 KB Output is correct
55 Correct 9 ms 20828 KB Output is correct
56 Correct 10 ms 20828 KB Output is correct
57 Correct 10 ms 21536 KB Output is correct
58 Correct 10 ms 21340 KB Output is correct
59 Correct 8 ms 20828 KB Output is correct
60 Correct 62 ms 25952 KB Output is correct
61 Correct 9 ms 20824 KB Output is correct
62 Correct 83 ms 28588 KB Output is correct

Subtask #3
83.0 / 83.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 20060 KB Output is correct
2 Correct 5 ms 20060 KB Output is correct
3 Correct 5 ms 20060 KB Output is correct
4 Correct 5 ms 20060 KB Output is correct
5 Correct 5 ms 20172 KB Output is correct
6 Correct 5 ms 20152 KB Output is correct
7 Correct 5 ms 20060 KB Output is correct
8 Correct 6 ms 20312 KB Output is correct
9 Correct 6 ms 20060 KB Output is correct
10 Correct 5 ms 20056 KB Output is correct
11 Correct 6 ms 20152 KB Output is correct
12 Correct 6 ms 20060 KB Output is correct
13 Correct 5 ms 20060 KB Output is correct
14 Correct 5 ms 20060 KB Output is correct
15 Correct 6 ms 20056 KB Output is correct
16 Correct 5 ms 20312 KB Output is correct
17 Correct 5 ms 20060 KB Output is correct
18 Correct 5 ms 20060 KB Output is correct
19 Correct 5 ms 20060 KB Output is correct
20 Correct 5 ms 20060 KB Output is correct
21 Correct 5 ms 20196 KB Output is correct
22 Correct 5 ms 20224 KB Output is correct
23 Correct 5 ms 20060 KB Output is correct
24 Correct 5 ms 20060 KB Output is correct
25 Correct 5 ms 20060 KB Output is correct
26 Correct 6 ms 20060 KB Output is correct
27 Correct 5 ms 20060 KB Output is correct
28 Correct 5 ms 20060 KB Output is correct
29 Correct 5 ms 20060 KB Output is correct
30 Correct 5 ms 20148 KB Output is correct
31 Correct 5 ms 20060 KB Output is correct
32 Correct 6 ms 20060 KB Output is correct
33 Correct 5 ms 20060 KB Output is correct
34 Correct 9 ms 20420 KB Output is correct
35 Correct 76 ms 26088 KB Output is correct
36 Correct 87 ms 29028 KB Output is correct
37 Correct 87 ms 29088 KB Output is correct
38 Correct 85 ms 28752 KB Output is correct
39 Correct 8 ms 20572 KB Output is correct
40 Correct 10 ms 20828 KB Output is correct
41 Correct 9 ms 20828 KB Output is correct
42 Correct 7 ms 20572 KB Output is correct
43 Correct 8 ms 20568 KB Output is correct
44 Correct 8 ms 20552 KB Output is correct
45 Correct 7 ms 20572 KB Output is correct
46 Correct 7 ms 20568 KB Output is correct
47 Correct 8 ms 20828 KB Output is correct
48 Correct 8 ms 20828 KB Output is correct
49 Correct 14 ms 21596 KB Output is correct
50 Correct 89 ms 29268 KB Output is correct
51 Correct 10 ms 20824 KB Output is correct
52 Correct 76 ms 27584 KB Output is correct
53 Correct 13 ms 21596 KB Output is correct
54 Correct 81 ms 28500 KB Output is correct
55 Correct 9 ms 20828 KB Output is correct
56 Correct 10 ms 20828 KB Output is correct
57 Correct 10 ms 21536 KB Output is correct
58 Correct 10 ms 21340 KB Output is correct
59 Correct 8 ms 20828 KB Output is correct
60 Correct 62 ms 25952 KB Output is correct
61 Correct 9 ms 20824 KB Output is correct
62 Correct 83 ms 28588 KB Output is correct
63 Correct 411 ms 72628 KB Output is correct
64 Correct 373 ms 72644 KB Output is correct
65 Correct 380 ms 72788 KB Output is correct
66 Correct 193 ms 43736 KB Output is correct
67 Correct 325 ms 69728 KB Output is correct
68 Correct 200 ms 43600 KB Output is correct
69 Correct 305 ms 41296 KB Output is correct
70 Correct 217 ms 43600 KB Output is correct
71 Correct 197 ms 43600 KB Output is correct
72 Correct 332 ms 53916 KB Output is correct
73 Correct 362 ms 55632 KB Output is correct
74 Correct 885 ms 79724 KB Output is correct
75 Correct 456 ms 49040 KB Output is correct
76 Correct 671 ms 63764 KB Output is correct
77 Correct 637 ms 63896 KB Output is correct
78 Correct 162 ms 44884 KB Output is correct
79 Correct 331 ms 51024 KB Output is correct
80 Correct 228 ms 43580 KB Output is correct
81 Correct 335 ms 47444 KB Output is correct
82 Correct 581 ms 62036 KB Output is correct
83 Correct 566 ms 61800 KB Output is correct
84 Correct 588 ms 86696 KB Output is correct
85 Correct 569 ms 86804 KB Output is correct
86 Correct 249 ms 73812 KB Output is correct
87 Correct 288 ms 76480 KB Output is correct
88 Correct 342 ms 54864 KB Output is correct
89 Correct 617 ms 61412 KB Output is correct