Submission #62481

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
62481	2018-07-28T18:37:37 Z	zetapi	Parachute rings (IOI12_rings)	C++14	100 / 100	2000 ms	85816 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	23800 KB	Output is correct
2	Correct	24 ms	24180 KB	Output is correct
3	Correct	24 ms	24260 KB	Output is correct
4	Correct	23 ms	24260 KB	Output is correct
5	Correct	23 ms	24260 KB	Output is correct
6	Correct	24 ms	24320 KB	Output is correct
7	Correct	23 ms	24320 KB	Output is correct
8	Correct	24 ms	24320 KB	Output is correct
9	Correct	31 ms	24320 KB	Output is correct
10	Correct	24 ms	24360 KB	Output is correct

Subtask #2
17.0 / 17.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	474 ms	44580 KB	Output is correct
2	Correct	888 ms	63084 KB	Output is correct
3	Correct	400 ms	63084 KB	Output is correct
4	Correct	1311 ms	63384 KB	Output is correct
5	Correct	1355 ms	63384 KB	Output is correct
6	Correct	1403 ms	63384 KB	Output is correct
7	Correct	361 ms	63384 KB	Output is correct
8	Correct	1635 ms	79996 KB	Output is correct
9	Correct	2000 ms	85816 KB	Output is correct
10	Correct	849 ms	85816 KB	Output is correct

Subtask #3
18.0 / 18.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	26 ms	23800 KB	Output is correct
2	Correct	24 ms	24180 KB	Output is correct
3	Correct	24 ms	24260 KB	Output is correct
4	Correct	23 ms	24260 KB	Output is correct
5	Correct	23 ms	24260 KB	Output is correct
6	Correct	24 ms	24320 KB	Output is correct
7	Correct	23 ms	24320 KB	Output is correct
8	Correct	24 ms	24320 KB	Output is correct
9	Correct	31 ms	24320 KB	Output is correct
10	Correct	24 ms	24360 KB	Output is correct
11	Correct	26 ms	85816 KB	Output is correct
12	Correct	29 ms	85816 KB	Output is correct
13	Correct	27 ms	85816 KB	Output is correct
14	Correct	24 ms	85816 KB	Output is correct
15	Correct	26 ms	85816 KB	Output is correct
16	Correct	28 ms	85816 KB	Output is correct
17	Correct	26 ms	85816 KB	Output is correct
18	Correct	27 ms	85816 KB	Output is correct
19	Correct	29 ms	85816 KB	Output is correct
20	Correct	27 ms	85816 KB	Output is correct

Subtask #4
14.0 / 14.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	26 ms	23800 KB	Output is correct
2	Correct	24 ms	24180 KB	Output is correct
3	Correct	24 ms	24260 KB	Output is correct
4	Correct	23 ms	24260 KB	Output is correct
5	Correct	23 ms	24260 KB	Output is correct
6	Correct	24 ms	24320 KB	Output is correct
7	Correct	23 ms	24320 KB	Output is correct
8	Correct	24 ms	24320 KB	Output is correct
9	Correct	31 ms	24320 KB	Output is correct
10	Correct	24 ms	24360 KB	Output is correct
11	Correct	26 ms	85816 KB	Output is correct
12	Correct	29 ms	85816 KB	Output is correct
13	Correct	27 ms	85816 KB	Output is correct
14	Correct	24 ms	85816 KB	Output is correct
15	Correct	26 ms	85816 KB	Output is correct
16	Correct	28 ms	85816 KB	Output is correct
17	Correct	26 ms	85816 KB	Output is correct
18	Correct	27 ms	85816 KB	Output is correct
19	Correct	29 ms	85816 KB	Output is correct
20	Correct	27 ms	85816 KB	Output is correct
21	Correct	45 ms	85816 KB	Output is correct
22	Correct	56 ms	85816 KB	Output is correct
23	Correct	66 ms	85816 KB	Output is correct
24	Correct	55 ms	85816 KB	Output is correct
25	Correct	37 ms	85816 KB	Output is correct
26	Correct	53 ms	85816 KB	Output is correct
27	Correct	72 ms	85816 KB	Output is correct
28	Correct	54 ms	85816 KB	Output is correct
29	Correct	52 ms	85816 KB	Output is correct
30	Correct	90 ms	85816 KB	Output is correct

Subtask #5
31.0 / 31.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	26 ms	23800 KB	Output is correct
2	Correct	24 ms	24180 KB	Output is correct
3	Correct	24 ms	24260 KB	Output is correct
4	Correct	23 ms	24260 KB	Output is correct
5	Correct	23 ms	24260 KB	Output is correct
6	Correct	24 ms	24320 KB	Output is correct
7	Correct	23 ms	24320 KB	Output is correct
8	Correct	24 ms	24320 KB	Output is correct
9	Correct	31 ms	24320 KB	Output is correct
10	Correct	24 ms	24360 KB	Output is correct
11	Correct	474 ms	44580 KB	Output is correct
12	Correct	888 ms	63084 KB	Output is correct
13	Correct	400 ms	63084 KB	Output is correct
14	Correct	1311 ms	63384 KB	Output is correct
15	Correct	1355 ms	63384 KB	Output is correct
16	Correct	1403 ms	63384 KB	Output is correct
17	Correct	361 ms	63384 KB	Output is correct
18	Correct	1635 ms	79996 KB	Output is correct
19	Correct	2000 ms	85816 KB	Output is correct
20	Correct	849 ms	85816 KB	Output is correct
21	Correct	26 ms	85816 KB	Output is correct
22	Correct	29 ms	85816 KB	Output is correct
23	Correct	27 ms	85816 KB	Output is correct
24	Correct	24 ms	85816 KB	Output is correct
25	Correct	26 ms	85816 KB	Output is correct
26	Correct	28 ms	85816 KB	Output is correct
27	Correct	26 ms	85816 KB	Output is correct
28	Correct	27 ms	85816 KB	Output is correct
29	Correct	29 ms	85816 KB	Output is correct
30	Correct	27 ms	85816 KB	Output is correct
31	Correct	45 ms	85816 KB	Output is correct
32	Correct	56 ms	85816 KB	Output is correct
33	Correct	66 ms	85816 KB	Output is correct
34	Correct	55 ms	85816 KB	Output is correct
35	Correct	37 ms	85816 KB	Output is correct
36	Correct	53 ms	85816 KB	Output is correct
37	Correct	72 ms	85816 KB	Output is correct
38	Correct	54 ms	85816 KB	Output is correct
39	Correct	52 ms	85816 KB	Output is correct
40	Correct	90 ms	85816 KB	Output is correct
41	Correct	259 ms	85816 KB	Output is correct
42	Correct	815 ms	85816 KB	Output is correct
43	Correct	262 ms	85816 KB	Output is correct
44	Correct	364 ms	85816 KB	Output is correct
45	Correct	510 ms	85816 KB	Output is correct
46	Correct	831 ms	85816 KB	Output is correct
47	Correct	1230 ms	85816 KB	Output is correct
48	Correct	303 ms	85816 KB	Output is correct
49	Correct	805 ms	85816 KB	Output is correct
50	Correct	883 ms	85816 KB	Output is correct
51	Correct	268 ms	85816 KB	Output is correct
52	Correct	336 ms	85816 KB	Output is correct
53	Correct	287 ms	85816 KB	Output is correct
54	Correct	1283 ms	85816 KB	Output is correct
55	Correct	534 ms	85816 KB	Output is correct

Submission #62481

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