Submission #59237

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
59237	2018-07-21T09:54:42 Z	TadijaSebez	Parachute rings (IOI12_rings)	C++11	100 / 100	3522 ms	82820 KB

rings

#include <stdio.h>
#include <vector>
#include <algorithm>
using namespace std;
#define mp make_pair
#define pb push_back
const int N=1000050;
int n;
struct DSU
{
	int p[N],c[N],deg[N];
	int cyc,my,sz;
	bool ok;
	DSU(){}
	void init(int x)
	{
		my=x;cyc=sz=0;ok=1;
		for(int i=0;i<n;i++) p[i]=i,c[i]=1,deg[i]=0;
	}
	int Find(int x){ return x==p[x]?x:p[x]=Find(p[x]);}
	void Union(int x, int y)
	{
		if(x==my || y==my) return;
		deg[x]++;deg[y]++;
		if(deg[x]>2 || deg[y]>2) ok=0;
		x=Find(x);y=Find(y);
		if(x==y){ cyc++,sz=c[x],ok=0;return;}
		if(c[y]>c[x])
		{
			p[x]=y;
			c[y]+=c[x];
		}
		else
		{
			p[y]=x;
			c[x]+=c[y];
		}
	}
} Base,Try[4];
int E[N][3];
int esz;
pair<int,int> edges[N];
int deg[N],sz;
bool mod;
void Init(int m){ n=m;Base.init(-1);}
void Push()
{
	for(int i=0;i<esz;i++)
	{
		for(int j=0;j<sz;j++)
		{
			Try[j].Union(edges[i].first,edges[i].second);
		}
	}
}
void Link(int a, int b)
{
	if(deg[a]<3) E[a][deg[a]]=b;
	deg[a]++;
	if(deg[b]<3) E[b][deg[b]]=a;
	deg[b]++;
	Base.Union(a,b);
	edges[esz++]=mp(a,b);
	if(mod)
	{
		for(int i=0;i<sz;i++) Try[i].Union(a,b);
		return;
	}
	if(deg[a]>2)
	{
		sz=4;
		Try[0].init(a);
		for(int i=0;i<3;i++) Try[i+1].init(E[a][i]);
		Push();
		mod=1;
		return;
	}
	if(deg[b]>2)
	{
		sz=4;
		Try[0].init(b);
		for(int i=0;i<3;i++) Try[i+1].init(E[b][i]);
		Push();
		mod=1;
		return;
	}
}
int CountCritical()
{
	if(mod)
	{
		int ans=0;
		for(int i=0;i<sz;i++) if(Try[i].ok) ans++;
		return ans;
	}
	if(Base.cyc>1) return 0;
	if(Base.cyc==1) return Base.sz;
	return n;
}

Subtask #1
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	3 ms	884 KB	Output is correct
3	Correct	4 ms	920 KB	Output is correct
4	Correct	2 ms	920 KB	Output is correct
5	Correct	3 ms	920 KB	Output is correct
6	Correct	3 ms	920 KB	Output is correct
7	Correct	3 ms	1108 KB	Output is correct
8	Correct	3 ms	1108 KB	Output is correct
9	Correct	4 ms	1132 KB	Output is correct
10	Correct	4 ms	1132 KB	Output is correct

Subtask #2
17.0 / 17.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	345 ms	18924 KB	Output is correct
2	Correct	2913 ms	66576 KB	Output is correct
3	Correct	3201 ms	82540 KB	Output is correct
4	Correct	1065 ms	82540 KB	Output is correct
5	Correct	1096 ms	82540 KB	Output is correct
6	Correct	1109 ms	82540 KB	Output is correct
7	Correct	3090 ms	82540 KB	Output is correct
8	Correct	3318 ms	82540 KB	Output is correct
9	Correct	3522 ms	82820 KB	Output is correct
10	Correct	713 ms	82820 KB	Output is correct

Subtask #3
18.0 / 18.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	3 ms	884 KB	Output is correct
3	Correct	4 ms	920 KB	Output is correct
4	Correct	2 ms	920 KB	Output is correct
5	Correct	3 ms	920 KB	Output is correct
6	Correct	3 ms	920 KB	Output is correct
7	Correct	3 ms	1108 KB	Output is correct
8	Correct	3 ms	1108 KB	Output is correct
9	Correct	4 ms	1132 KB	Output is correct
10	Correct	4 ms	1132 KB	Output is correct
11	Correct	4 ms	82820 KB	Output is correct
12	Correct	6 ms	82820 KB	Output is correct
13	Correct	6 ms	82820 KB	Output is correct
14	Correct	5 ms	82820 KB	Output is correct
15	Correct	6 ms	82820 KB	Output is correct
16	Correct	5 ms	82820 KB	Output is correct
17	Correct	6 ms	82820 KB	Output is correct
18	Correct	7 ms	82820 KB	Output is correct
19	Correct	5 ms	82820 KB	Output is correct
20	Correct	7 ms	82820 KB	Output is correct

Subtask #4
14.0 / 14.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	3 ms	884 KB	Output is correct
3	Correct	4 ms	920 KB	Output is correct
4	Correct	2 ms	920 KB	Output is correct
5	Correct	3 ms	920 KB	Output is correct
6	Correct	3 ms	920 KB	Output is correct
7	Correct	3 ms	1108 KB	Output is correct
8	Correct	3 ms	1108 KB	Output is correct
9	Correct	4 ms	1132 KB	Output is correct
10	Correct	4 ms	1132 KB	Output is correct
11	Correct	4 ms	82820 KB	Output is correct
12	Correct	6 ms	82820 KB	Output is correct
13	Correct	6 ms	82820 KB	Output is correct
14	Correct	5 ms	82820 KB	Output is correct
15	Correct	6 ms	82820 KB	Output is correct
16	Correct	5 ms	82820 KB	Output is correct
17	Correct	6 ms	82820 KB	Output is correct
18	Correct	7 ms	82820 KB	Output is correct
19	Correct	5 ms	82820 KB	Output is correct
20	Correct	7 ms	82820 KB	Output is correct
21	Correct	20 ms	82820 KB	Output is correct
22	Correct	30 ms	82820 KB	Output is correct
23	Correct	36 ms	82820 KB	Output is correct
24	Correct	53 ms	82820 KB	Output is correct
25	Correct	25 ms	82820 KB	Output is correct
26	Correct	51 ms	82820 KB	Output is correct
27	Correct	39 ms	82820 KB	Output is correct
28	Correct	62 ms	82820 KB	Output is correct
29	Correct	48 ms	82820 KB	Output is correct
30	Correct	45 ms	82820 KB	Output is correct

Subtask #5
31.0 / 31.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	3 ms	884 KB	Output is correct
3	Correct	4 ms	920 KB	Output is correct
4	Correct	2 ms	920 KB	Output is correct
5	Correct	3 ms	920 KB	Output is correct
6	Correct	3 ms	920 KB	Output is correct
7	Correct	3 ms	1108 KB	Output is correct
8	Correct	3 ms	1108 KB	Output is correct
9	Correct	4 ms	1132 KB	Output is correct
10	Correct	4 ms	1132 KB	Output is correct
11	Correct	345 ms	18924 KB	Output is correct
12	Correct	2913 ms	66576 KB	Output is correct
13	Correct	3201 ms	82540 KB	Output is correct
14	Correct	1065 ms	82540 KB	Output is correct
15	Correct	1096 ms	82540 KB	Output is correct
16	Correct	1109 ms	82540 KB	Output is correct
17	Correct	3090 ms	82540 KB	Output is correct
18	Correct	3318 ms	82540 KB	Output is correct
19	Correct	3522 ms	82820 KB	Output is correct
20	Correct	713 ms	82820 KB	Output is correct
21	Correct	4 ms	82820 KB	Output is correct
22	Correct	6 ms	82820 KB	Output is correct
23	Correct	6 ms	82820 KB	Output is correct
24	Correct	5 ms	82820 KB	Output is correct
25	Correct	6 ms	82820 KB	Output is correct
26	Correct	5 ms	82820 KB	Output is correct
27	Correct	6 ms	82820 KB	Output is correct
28	Correct	7 ms	82820 KB	Output is correct
29	Correct	5 ms	82820 KB	Output is correct
30	Correct	7 ms	82820 KB	Output is correct
31	Correct	20 ms	82820 KB	Output is correct
32	Correct	30 ms	82820 KB	Output is correct
33	Correct	36 ms	82820 KB	Output is correct
34	Correct	53 ms	82820 KB	Output is correct
35	Correct	25 ms	82820 KB	Output is correct
36	Correct	51 ms	82820 KB	Output is correct
37	Correct	39 ms	82820 KB	Output is correct
38	Correct	62 ms	82820 KB	Output is correct
39	Correct	48 ms	82820 KB	Output is correct
40	Correct	45 ms	82820 KB	Output is correct
41	Correct	212 ms	82820 KB	Output is correct
42	Correct	1316 ms	82820 KB	Output is correct
43	Correct	474 ms	82820 KB	Output is correct
44	Correct	1932 ms	82820 KB	Output is correct
45	Correct	2093 ms	82820 KB	Output is correct
46	Correct	729 ms	82820 KB	Output is correct
47	Correct	881 ms	82820 KB	Output is correct
48	Correct	1456 ms	82820 KB	Output is correct
49	Correct	755 ms	82820 KB	Output is correct
50	Correct	766 ms	82820 KB	Output is correct
51	Correct	668 ms	82820 KB	Output is correct
52	Correct	1730 ms	82820 KB	Output is correct
53	Correct	1628 ms	82820 KB	Output is correct
54	Correct	3051 ms	82820 KB	Output is correct
55	Correct	3490 ms	82820 KB	Output is correct

Submission #59237

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