Submission #62482

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
62482	2018-07-28T18:38:10 Z	zetapi	Parachute rings (IOI12_rings)	C++14	100 / 100	1990 ms	85856 KB

rings

#include <bits/stdc++.h>
using namespace std;

#define pb  push_back
#define mp  make_pair
#define ll 	long long
#define itr ::iterator 

typedef pair<int,int>  pii;

const int MAX=1e6+99;

vector<int> vec[MAX];

int linear[4],destruct[4],deg[4][MAX],OtherEnd[4][MAX];

int N,cnt,CycleSize,Quad,a,b;

void Init(int N_) 
{
  	N=N_;
  	cnt=0;
  	Quad=0;
  	CycleSize=0;
  	for(int A=0;A<N;A++)
  	{
  		deg[0][A]=0;
  		OtherEnd[0][A]=A;
  		vec[A].clear();
  	}
  	return ;
}

void Add(int X,int Y)
{
	for(int A=0;A<4;A++) 	
	{
		if(!linear[A] or destruct[A]==X or destruct[A]==Y)
			continue;
		deg[A][X]++;
		deg[A][Y]++;
		if(deg[A][X]==3 or deg[A][Y]==3 or OtherEnd[A][X]==Y)
		{
			linear[A]=0;
			continue;
		}
		a=OtherEnd[A][X];
		b=OtherEnd[A][Y];
		OtherEnd[A][X]=-1;
		OtherEnd[A][Y]=-1;
		OtherEnd[A][a]=b;
		OtherEnd[A][b]=a;
	}
	return ;
}

void Split(int X)
{
	destruct[0]=X;
	destruct[1]=vec[X][0];
	destruct[2]=vec[X][1];
	destruct[3]=vec[X][2];
	for(int A=0;A<4;A++)
	{
		linear[A]=1;
		for(int B=0;B<N;B++)
		{
			deg[A][B]=0;
			OtherEnd[A][B]=B;
		}
	}
	for(int A=0;A<N;A++)
		for(auto B:vec[A])
			if(A<B)
				Add(A,B);
	return ;	
}

void Link(int X,int Y) 
{
	a=X;
	b=Y;
	if(Quad==0)
	{
		vec[X].pb(Y);
		vec[Y].pb(X);
		deg[0][X]++;
		deg[0][Y]++;
		if(deg[0][X]==3)
		{
			Quad=1;
			Split(X);
			return ;
		}
		if(deg[0][Y]==3)
		{
			Quad=1;
			Split(Y);
			return ;
		}
		if(OtherEnd[0][X]!=Y)
		{
			a=OtherEnd[0][X];
			b=OtherEnd[0][Y];
			OtherEnd[0][X]=-1;
			OtherEnd[0][Y]=-1;
			OtherEnd[0][a]=b;
			OtherEnd[0][b]=a;
			return ;
		}
		cnt++;
		if(cnt==1)
		{
			int cur=X,pre=X;
			do
			{
      
				CycleSize++;
				if(vec[cur][0]==pre)
				{
					pre=cur;
					cur=vec[cur][1];
				}
				else
				{
					pre=cur;
					cur=vec[cur][0];
				}
			}
			while(cur!=X);
		}
	}
	else
		Add(X,Y);
	return ;
}

int CountCritical() 
{	
	if(!Quad)
	{
		if(cnt>1)
			return 0;
		else if(CycleSize)
			return CycleSize;
		else
			return N;
	}
	else
		return (linear[0]+linear[1]+linear[2]+linear[3]);
}

/*signed main()
{
	ios_base::sync_with_stdio(false);

	Init(7);
	cout<<CountCritical()<<"\n";
	Link(1,2);
	cout<<CountCritical()<<"\n";
	Link(0,5);
	cout<<CountCritical()<<"\n";
	Link(2,0);
	cout<<CountCritical()<<"\n";
	Link(3,2);
	cout<<CountCritical()<<"\n";
	Link(3,5);
	cout<<CountCritical()<<"\n";
	Link(4,3);
	cout<<CountCritical()<<"\n";
	return 0;
}*/

Subtask #1
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	26 ms	23900 KB	Output is correct
2	Correct	25 ms	24188 KB	Output is correct
3	Correct	24 ms	24352 KB	Output is correct
4	Correct	22 ms	24352 KB	Output is correct
5	Correct	24 ms	24352 KB	Output is correct
6	Correct	24 ms	24352 KB	Output is correct
7	Correct	23 ms	24352 KB	Output is correct
8	Correct	25 ms	24352 KB	Output is correct
9	Correct	24 ms	24352 KB	Output is correct
10	Correct	30 ms	24396 KB	Output is correct

Subtask #2
17.0 / 17.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	460 ms	44444 KB	Output is correct
2	Correct	829 ms	63144 KB	Output is correct
3	Correct	358 ms	63144 KB	Output is correct
4	Correct	1362 ms	63256 KB	Output is correct
5	Correct	1308 ms	63288 KB	Output is correct
6	Correct	1419 ms	63288 KB	Output is correct
7	Correct	364 ms	63288 KB	Output is correct
8	Correct	1766 ms	79912 KB	Output is correct
9	Correct	1990 ms	85856 KB	Output is correct
10	Correct	825 ms	85856 KB	Output is correct

Subtask #3
18.0 / 18.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	26 ms	23900 KB	Output is correct
2	Correct	25 ms	24188 KB	Output is correct
3	Correct	24 ms	24352 KB	Output is correct
4	Correct	22 ms	24352 KB	Output is correct
5	Correct	24 ms	24352 KB	Output is correct
6	Correct	24 ms	24352 KB	Output is correct
7	Correct	23 ms	24352 KB	Output is correct
8	Correct	25 ms	24352 KB	Output is correct
9	Correct	24 ms	24352 KB	Output is correct
10	Correct	30 ms	24396 KB	Output is correct
11	Correct	24 ms	85856 KB	Output is correct
12	Correct	27 ms	85856 KB	Output is correct
13	Correct	27 ms	85856 KB	Output is correct
14	Correct	24 ms	85856 KB	Output is correct
15	Correct	25 ms	85856 KB	Output is correct
16	Correct	29 ms	85856 KB	Output is correct
17	Correct	26 ms	85856 KB	Output is correct
18	Correct	26 ms	85856 KB	Output is correct
19	Correct	27 ms	85856 KB	Output is correct
20	Correct	28 ms	85856 KB	Output is correct

Subtask #4
14.0 / 14.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	26 ms	23900 KB	Output is correct
2	Correct	25 ms	24188 KB	Output is correct
3	Correct	24 ms	24352 KB	Output is correct
4	Correct	22 ms	24352 KB	Output is correct
5	Correct	24 ms	24352 KB	Output is correct
6	Correct	24 ms	24352 KB	Output is correct
7	Correct	23 ms	24352 KB	Output is correct
8	Correct	25 ms	24352 KB	Output is correct
9	Correct	24 ms	24352 KB	Output is correct
10	Correct	30 ms	24396 KB	Output is correct
11	Correct	24 ms	85856 KB	Output is correct
12	Correct	27 ms	85856 KB	Output is correct
13	Correct	27 ms	85856 KB	Output is correct
14	Correct	24 ms	85856 KB	Output is correct
15	Correct	25 ms	85856 KB	Output is correct
16	Correct	29 ms	85856 KB	Output is correct
17	Correct	26 ms	85856 KB	Output is correct
18	Correct	26 ms	85856 KB	Output is correct
19	Correct	27 ms	85856 KB	Output is correct
20	Correct	28 ms	85856 KB	Output is correct
21	Correct	42 ms	85856 KB	Output is correct
22	Correct	56 ms	85856 KB	Output is correct
23	Correct	68 ms	85856 KB	Output is correct
24	Correct	56 ms	85856 KB	Output is correct
25	Correct	54 ms	85856 KB	Output is correct
26	Correct	55 ms	85856 KB	Output is correct
27	Correct	74 ms	85856 KB	Output is correct
28	Correct	58 ms	85856 KB	Output is correct
29	Correct	50 ms	85856 KB	Output is correct
30	Correct	98 ms	85856 KB	Output is correct

Subtask #5
31.0 / 31.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	26 ms	23900 KB	Output is correct
2	Correct	25 ms	24188 KB	Output is correct
3	Correct	24 ms	24352 KB	Output is correct
4	Correct	22 ms	24352 KB	Output is correct
5	Correct	24 ms	24352 KB	Output is correct
6	Correct	24 ms	24352 KB	Output is correct
7	Correct	23 ms	24352 KB	Output is correct
8	Correct	25 ms	24352 KB	Output is correct
9	Correct	24 ms	24352 KB	Output is correct
10	Correct	30 ms	24396 KB	Output is correct
11	Correct	460 ms	44444 KB	Output is correct
12	Correct	829 ms	63144 KB	Output is correct
13	Correct	358 ms	63144 KB	Output is correct
14	Correct	1362 ms	63256 KB	Output is correct
15	Correct	1308 ms	63288 KB	Output is correct
16	Correct	1419 ms	63288 KB	Output is correct
17	Correct	364 ms	63288 KB	Output is correct
18	Correct	1766 ms	79912 KB	Output is correct
19	Correct	1990 ms	85856 KB	Output is correct
20	Correct	825 ms	85856 KB	Output is correct
21	Correct	24 ms	85856 KB	Output is correct
22	Correct	27 ms	85856 KB	Output is correct
23	Correct	27 ms	85856 KB	Output is correct
24	Correct	24 ms	85856 KB	Output is correct
25	Correct	25 ms	85856 KB	Output is correct
26	Correct	29 ms	85856 KB	Output is correct
27	Correct	26 ms	85856 KB	Output is correct
28	Correct	26 ms	85856 KB	Output is correct
29	Correct	27 ms	85856 KB	Output is correct
30	Correct	28 ms	85856 KB	Output is correct
31	Correct	42 ms	85856 KB	Output is correct
32	Correct	56 ms	85856 KB	Output is correct
33	Correct	68 ms	85856 KB	Output is correct
34	Correct	56 ms	85856 KB	Output is correct
35	Correct	54 ms	85856 KB	Output is correct
36	Correct	55 ms	85856 KB	Output is correct
37	Correct	74 ms	85856 KB	Output is correct
38	Correct	58 ms	85856 KB	Output is correct
39	Correct	50 ms	85856 KB	Output is correct
40	Correct	98 ms	85856 KB	Output is correct
41	Correct	259 ms	85856 KB	Output is correct
42	Correct	819 ms	85856 KB	Output is correct
43	Correct	283 ms	85856 KB	Output is correct
44	Correct	367 ms	85856 KB	Output is correct
45	Correct	522 ms	85856 KB	Output is correct
46	Correct	868 ms	85856 KB	Output is correct
47	Correct	1345 ms	85856 KB	Output is correct
48	Correct	331 ms	85856 KB	Output is correct
49	Correct	807 ms	85856 KB	Output is correct
50	Correct	895 ms	85856 KB	Output is correct
51	Correct	256 ms	85856 KB	Output is correct
52	Correct	349 ms	85856 KB	Output is correct
53	Correct	285 ms	85856 KB	Output is correct
54	Correct	1294 ms	85856 KB	Output is correct
55	Correct	519 ms	85856 KB	Output is correct

Submission #62482

Compilation message

Subtask #1 20.0 / 20.0

Subtask #2 17.0 / 17.0

Subtask #3 18.0 / 18.0

Subtask #4 14.0 / 14.0

Subtask #5 31.0 / 31.0

Subtask #1
20.0 / 20.0

Subtask #2
17.0 / 17.0

Subtask #3
18.0 / 18.0

Subtask #4
14.0 / 14.0

Subtask #5
31.0 / 31.0