oj.uz

Submission #1012119

# Submission time Handle Problem Language Result Execution time Memory
1012119 2024-07-01T16:35:29 Z amirhoseinfar1385 Parachute rings (IOI12_rings) C++17
100 / 100
 1372 ms 262144 KB 
#include<bits/stdc++.h>
//#include "rings.h"
//#pragma GCC optimize("O3,unroll-loops")
//#pragma GCC target("avx2")
using namespace std;
const int maxn=1000000+10;
vector<int>cand;
int n,tof=0;
struct gr{
	pair<int,int>mx;
	int par[maxn],sz[maxn],dordare,m,c,moalefedordar;
	vector<int>adjs[maxn];
	void clear(){
		for(int i=0;i<maxn;i++){
			par[i]=i;
			sz[i]=1;
			adjs[i].clear();
		}
		mx=make_pair(0,-1);
		m=0;
		dordare=moalefedordar=c=m=0;
	}
	gr(){
		for(int i=0;i<maxn;i++){
			par[i]=i;
			sz[i]=1;
		}
		mx=make_pair(0,-1);
		m=0;
		dordare=moalefedordar=c=m=0;
	}
	void con(int u,int v){
		m++;
		if(adjs[u].size()<=3){
			adjs[u].push_back(v);
		}
		if(adjs[v].size()<=3){
			adjs[v].push_back(u);
		}
		mx=max(mx,make_pair((int)adjs[u].size(),u));
		mx=max(mx,make_pair((int)adjs[v].size(),v));
		if(par[u]==v){
			dordare++;
			moalefedordar=sz[u];
		}else{
			c--;
			int pu=par[u],pv=par[v],x=sz[u]+sz[v];
			sz[pu]=x;
			sz[pv]=x;
			par[pu]=pv;
			par[pv]=pu;
		}
	}
}gr[4];

void Init(int N){
	//int n=N;
	n=N;
	for(int i=0;i<4;i++){
		gr[i].c=n;
	}
}
vector<pair<int,int>>getalle(){
	vector<pair<int,int>>ret;
	for(int i=0;i<n;i++){
		for(auto x:gr[0].adjs[i]){
			if(x>i){
				ret.push_back(make_pair(i,x));
			}
		}
	}
	return ret;
}

void Link(int A, int B){
	int u=A;
	int v=B;
	if(tof==0){
		gr[0].con(u,v);
	}
	if((int)cand.size()>0){
		for(int i=0;i<4;i++){
			if(gr[i].dordare==1||gr[i].mx.first>=3||u==cand[i]||v==cand[i]){
				continue;
			}
			gr[i].con(u,v);
		}
	}
	if(tof==0&&(gr[0].mx).first>=3){
		tof=1;
		int z=(gr[0].mx).second;
		for(auto x:gr[0].adjs[z]){
			cand.push_back(x);
		}
		cand.push_back(z);
		vector<pair<int,int>>v=getalle();
		gr[0].clear();
		for(int i=0;i<(int)cand.size();i++){
			for(auto x:v){
				if(gr[i].dordare==1||gr[i].mx.first>=3||x.first==cand[i]||x.second==cand[i]){
					continue;
				}
				gr[i].con(x.first,x.second);
			}
		}
	}
}

int CountCritical(){
	if(tof){
		int res=0;
		for(int i=0;i<4;i++){
			if(gr[i].dordare==0&&(gr[i].mx).first<3){
				res++;
			}
		}
		return res;
	}
	if(gr[0].dordare==0){
		return n;
	}
	if(gr[0].dordare>=2){
		return 0;
	}
	return gr[0].moalefedordar;
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 54 ms 125524 KB Output is correct
2 Correct 58 ms 126036 KB Output is correct
3 Correct 50 ms 126032 KB Output is correct
4 Correct 50 ms 125524 KB Output is correct
5 Correct 49 ms 125748 KB Output is correct
6 Correct 52 ms 125796 KB Output is correct
7 Correct 52 ms 125696 KB Output is correct
8 Correct 50 ms 125788 KB Output is correct
9 Correct 58 ms 126224 KB Output is correct
10 Correct 62 ms 126372 KB Output is correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 216 ms 148816 KB Output is correct
2 Correct 760 ms 206612 KB Output is correct
3 Correct 195 ms 139932 KB Output is correct
4 Correct 552 ms 170092 KB Output is correct
5 Correct 561 ms 170324 KB Output is correct
6 Correct 535 ms 168872 KB Output is correct
7 Correct 199 ms 140116 KB Output is correct
8 Correct 1280 ms 251532 KB Output is correct
9 Correct 1372 ms 262144 KB Output is correct
10 Correct 347 ms 167736 KB Output is correct

Subtask #3
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 54 ms 125524 KB Output is correct
2 Correct 58 ms 126036 KB Output is correct
3 Correct 50 ms 126032 KB Output is correct
4 Correct 50 ms 125524 KB Output is correct
5 Correct 49 ms 125748 KB Output is correct
6 Correct 52 ms 125796 KB Output is correct
7 Correct 52 ms 125696 KB Output is correct
8 Correct 50 ms 125788 KB Output is correct
9 Correct 58 ms 126224 KB Output is correct
10 Correct 62 ms 126372 KB Output is correct
11 Correct 55 ms 126292 KB Output is correct
12 Correct 60 ms 127060 KB Output is correct
13 Correct 65 ms 127060 KB Output is correct
14 Correct 55 ms 125880 KB Output is correct
15 Correct 50 ms 125776 KB Output is correct
16 Correct 52 ms 126032 KB Output is correct
17 Correct 51 ms 125788 KB Output is correct
18 Correct 50 ms 125776 KB Output is correct
19 Correct 56 ms 126288 KB Output is correct
20 Correct 61 ms 126804 KB Output is correct

Subtask #4
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 54 ms 125524 KB Output is correct
2 Correct 58 ms 126036 KB Output is correct
3 Correct 50 ms 126032 KB Output is correct
4 Correct 50 ms 125524 KB Output is correct
5 Correct 49 ms 125748 KB Output is correct
6 Correct 52 ms 125796 KB Output is correct
7 Correct 52 ms 125696 KB Output is correct
8 Correct 50 ms 125788 KB Output is correct
9 Correct 58 ms 126224 KB Output is correct
10 Correct 62 ms 126372 KB Output is correct
11 Correct 55 ms 126292 KB Output is correct
12 Correct 60 ms 127060 KB Output is correct
13 Correct 65 ms 127060 KB Output is correct
14 Correct 55 ms 125880 KB Output is correct
15 Correct 50 ms 125776 KB Output is correct
16 Correct 52 ms 126032 KB Output is correct
17 Correct 51 ms 125788 KB Output is correct
18 Correct 50 ms 125776 KB Output is correct
19 Correct 56 ms 126288 KB Output is correct
20 Correct 61 ms 126804 KB Output is correct
21 Correct 62 ms 126996 KB Output is correct
22 Correct 65 ms 127836 KB Output is correct
23 Correct 69 ms 128296 KB Output is correct
24 Correct 73 ms 127824 KB Output is correct
25 Correct 57 ms 126036 KB Output is correct
26 Correct 80 ms 128600 KB Output is correct
27 Correct 72 ms 129312 KB Output is correct
28 Correct 74 ms 126800 KB Output is correct
29 Correct 67 ms 126800 KB Output is correct
30 Correct 77 ms 129876 KB Output is correct

Subtask #5
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 54 ms 125524 KB Output is correct
2 Correct 58 ms 126036 KB Output is correct
3 Correct 50 ms 126032 KB Output is correct
4 Correct 50 ms 125524 KB Output is correct
5 Correct 49 ms 125748 KB Output is correct
6 Correct 52 ms 125796 KB Output is correct
7 Correct 52 ms 125696 KB Output is correct
8 Correct 50 ms 125788 KB Output is correct
9 Correct 58 ms 126224 KB Output is correct
10 Correct 62 ms 126372 KB Output is correct
11 Correct 216 ms 148816 KB Output is correct
12 Correct 760 ms 206612 KB Output is correct
13 Correct 195 ms 139932 KB Output is correct
14 Correct 552 ms 170092 KB Output is correct
15 Correct 561 ms 170324 KB Output is correct
16 Correct 535 ms 168872 KB Output is correct
17 Correct 199 ms 140116 KB Output is correct
18 Correct 1280 ms 251532 KB Output is correct
19 Correct 1372 ms 262144 KB Output is correct
20 Correct 347 ms 167736 KB Output is correct
21 Correct 55 ms 126292 KB Output is correct
22 Correct 60 ms 127060 KB Output is correct
23 Correct 65 ms 127060 KB Output is correct
24 Correct 55 ms 125880 KB Output is correct
25 Correct 50 ms 125776 KB Output is correct
26 Correct 52 ms 126032 KB Output is correct
27 Correct 51 ms 125788 KB Output is correct
28 Correct 50 ms 125776 KB Output is correct
29 Correct 56 ms 126288 KB Output is correct
30 Correct 61 ms 126804 KB Output is correct
31 Correct 62 ms 126996 KB Output is correct
32 Correct 65 ms 127836 KB Output is correct
33 Correct 69 ms 128296 KB Output is correct
34 Correct 73 ms 127824 KB Output is correct
35 Correct 57 ms 126036 KB Output is correct
36 Correct 80 ms 128600 KB Output is correct
37 Correct 72 ms 129312 KB Output is correct
38 Correct 74 ms 126800 KB Output is correct
39 Correct 67 ms 126800 KB Output is correct
40 Correct 77 ms 129876 KB Output is correct
41 Correct 155 ms 137552 KB Output is correct
42 Correct 611 ms 189716 KB Output is correct
43 Correct 154 ms 132692 KB Output is correct
44 Correct 171 ms 138324 KB Output is correct
45 Correct 394 ms 154052 KB Output is correct
46 Correct 357 ms 163896 KB Output is correct
47 Correct 473 ms 164436 KB Output is correct
48 Correct 171 ms 136148 KB Output is correct
49 Correct 354 ms 161560 KB Output is correct
50 Correct 399 ms 161284 KB Output is correct
51 Correct 164 ms 134740 KB Output is correct
52 Correct 189 ms 137040 KB Output is correct
53 Correct 154 ms 134480 KB Output is correct
54 Correct 1070 ms 231300 KB Output is correct
55 Correct 534 ms 166404 KB Output is correct