Submission #62490

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
62490	2018-07-28T19:09:27 Z	zetapi	Parachute rings (IOI12_rings)	C++14	100 / 100	2478 ms	93672 KB

rings

#include <bits/stdc++.h>
using namespace std;
 
typedef pair<int,int>  pii;
 
const int MAX=1e6+99;
 
vector<int> vec[MAX];

pii E[MAX];

int linear[4],destruct[4],deg[4][MAX],OtherEnd[4][MAX];
 
int N,M,cnt,CycleSize,Quad,a,b;

void Init(int N_) 
{
	M=0;
  	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)
{
	Quad=1;
	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<M;A++)
		Add(E[A].first,E[A].second);
	return ;	
}
 
void Link(int X,int Y) 
{
	E[M++]=make_pair(X,Y);
	if(Quad==0)
	{
		vec[X].push_back(Y);
		vec[Y].push_back(X);
		deg[0][X]++;
		deg[0][Y]++;
		if(deg[0][X]==3)
		{
			Split(X);
			return ;
		}
		if(deg[0][Y]==3)
		{
			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]);
}

Subtask #1
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	22 ms	23800 KB	Output is correct
2	Correct	24 ms	24180 KB	Output is correct
3	Correct	24 ms	24216 KB	Output is correct
4	Correct	22 ms	24216 KB	Output is correct
5	Correct	22 ms	24216 KB	Output is correct
6	Correct	25 ms	24292 KB	Output is correct
7	Correct	23 ms	24292 KB	Output is correct
8	Correct	24 ms	24292 KB	Output is correct
9	Correct	23 ms	24368 KB	Output is correct
10	Correct	24 ms	24368 KB	Output is correct

Subtask #2
17.0 / 17.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	462 ms	48564 KB	Output is correct
2	Correct	1002 ms	69476 KB	Output is correct
3	Correct	385 ms	69476 KB	Output is correct
4	Correct	1322 ms	71088 KB	Output is correct
5	Correct	1279 ms	71180 KB	Output is correct
6	Correct	1355 ms	71180 KB	Output is correct
7	Correct	368 ms	71180 KB	Output is correct
8	Correct	2013 ms	87096 KB	Output is correct
9	Correct	2478 ms	93672 KB	Output is correct
10	Correct	846 ms	93672 KB	Output is correct

Subtask #3
18.0 / 18.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	22 ms	23800 KB	Output is correct
2	Correct	24 ms	24180 KB	Output is correct
3	Correct	24 ms	24216 KB	Output is correct
4	Correct	22 ms	24216 KB	Output is correct
5	Correct	22 ms	24216 KB	Output is correct
6	Correct	25 ms	24292 KB	Output is correct
7	Correct	23 ms	24292 KB	Output is correct
8	Correct	24 ms	24292 KB	Output is correct
9	Correct	23 ms	24368 KB	Output is correct
10	Correct	24 ms	24368 KB	Output is correct
11	Correct	24 ms	93672 KB	Output is correct
12	Correct	29 ms	93672 KB	Output is correct
13	Correct	26 ms	93672 KB	Output is correct
14	Correct	24 ms	93672 KB	Output is correct
15	Correct	35 ms	93672 KB	Output is correct
16	Correct	27 ms	93672 KB	Output is correct
17	Correct	26 ms	93672 KB	Output is correct
18	Correct	25 ms	93672 KB	Output is correct
19	Correct	27 ms	93672 KB	Output is correct
20	Correct	28 ms	93672 KB	Output is correct

Subtask #4
14.0 / 14.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	22 ms	23800 KB	Output is correct
2	Correct	24 ms	24180 KB	Output is correct
3	Correct	24 ms	24216 KB	Output is correct
4	Correct	22 ms	24216 KB	Output is correct
5	Correct	22 ms	24216 KB	Output is correct
6	Correct	25 ms	24292 KB	Output is correct
7	Correct	23 ms	24292 KB	Output is correct
8	Correct	24 ms	24292 KB	Output is correct
9	Correct	23 ms	24368 KB	Output is correct
10	Correct	24 ms	24368 KB	Output is correct
11	Correct	24 ms	93672 KB	Output is correct
12	Correct	29 ms	93672 KB	Output is correct
13	Correct	26 ms	93672 KB	Output is correct
14	Correct	24 ms	93672 KB	Output is correct
15	Correct	35 ms	93672 KB	Output is correct
16	Correct	27 ms	93672 KB	Output is correct
17	Correct	26 ms	93672 KB	Output is correct
18	Correct	25 ms	93672 KB	Output is correct
19	Correct	27 ms	93672 KB	Output is correct
20	Correct	28 ms	93672 KB	Output is correct
21	Correct	44 ms	93672 KB	Output is correct
22	Correct	63 ms	93672 KB	Output is correct
23	Correct	65 ms	93672 KB	Output is correct
24	Correct	57 ms	93672 KB	Output is correct
25	Correct	37 ms	93672 KB	Output is correct
26	Correct	53 ms	93672 KB	Output is correct
27	Correct	92 ms	93672 KB	Output is correct
28	Correct	53 ms	93672 KB	Output is correct
29	Correct	50 ms	93672 KB	Output is correct
30	Correct	90 ms	93672 KB	Output is correct

Subtask #5
31.0 / 31.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	22 ms	23800 KB	Output is correct
2	Correct	24 ms	24180 KB	Output is correct
3	Correct	24 ms	24216 KB	Output is correct
4	Correct	22 ms	24216 KB	Output is correct
5	Correct	22 ms	24216 KB	Output is correct
6	Correct	25 ms	24292 KB	Output is correct
7	Correct	23 ms	24292 KB	Output is correct
8	Correct	24 ms	24292 KB	Output is correct
9	Correct	23 ms	24368 KB	Output is correct
10	Correct	24 ms	24368 KB	Output is correct
11	Correct	462 ms	48564 KB	Output is correct
12	Correct	1002 ms	69476 KB	Output is correct
13	Correct	385 ms	69476 KB	Output is correct
14	Correct	1322 ms	71088 KB	Output is correct
15	Correct	1279 ms	71180 KB	Output is correct
16	Correct	1355 ms	71180 KB	Output is correct
17	Correct	368 ms	71180 KB	Output is correct
18	Correct	2013 ms	87096 KB	Output is correct
19	Correct	2478 ms	93672 KB	Output is correct
20	Correct	846 ms	93672 KB	Output is correct
21	Correct	24 ms	93672 KB	Output is correct
22	Correct	29 ms	93672 KB	Output is correct
23	Correct	26 ms	93672 KB	Output is correct
24	Correct	24 ms	93672 KB	Output is correct
25	Correct	35 ms	93672 KB	Output is correct
26	Correct	27 ms	93672 KB	Output is correct
27	Correct	26 ms	93672 KB	Output is correct
28	Correct	25 ms	93672 KB	Output is correct
29	Correct	27 ms	93672 KB	Output is correct
30	Correct	28 ms	93672 KB	Output is correct
31	Correct	44 ms	93672 KB	Output is correct
32	Correct	63 ms	93672 KB	Output is correct
33	Correct	65 ms	93672 KB	Output is correct
34	Correct	57 ms	93672 KB	Output is correct
35	Correct	37 ms	93672 KB	Output is correct
36	Correct	53 ms	93672 KB	Output is correct
37	Correct	92 ms	93672 KB	Output is correct
38	Correct	53 ms	93672 KB	Output is correct
39	Correct	50 ms	93672 KB	Output is correct
40	Correct	90 ms	93672 KB	Output is correct
41	Correct	251 ms	93672 KB	Output is correct
42	Correct	917 ms	93672 KB	Output is correct
43	Correct	267 ms	93672 KB	Output is correct
44	Correct	354 ms	93672 KB	Output is correct
45	Correct	519 ms	93672 KB	Output is correct
46	Correct	880 ms	93672 KB	Output is correct
47	Correct	1178 ms	93672 KB	Output is correct
48	Correct	320 ms	93672 KB	Output is correct
49	Correct	812 ms	93672 KB	Output is correct
50	Correct	859 ms	93672 KB	Output is correct
51	Correct	259 ms	93672 KB	Output is correct
52	Correct	335 ms	93672 KB	Output is correct
53	Correct	298 ms	93672 KB	Output is correct
54	Correct	1470 ms	93672 KB	Output is correct
55	Correct	516 ms	93672 KB	Output is correct

Submission #62490

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