oj.uz

Submission #7492

# Submission time Handle Problem Language Result Execution time Memory
7492 2014-08-09T11:22:21 Z gs13105 경비원 (GA8_guard) C++
37 / 100
 764 ms 1164 KB 
#include <stdio.h>

bool chk[2223];
int pri[331];
int arr[2222];
bool sta[20];
bool tmp[331];
int mem[16384];
int n;

int g(int x,int y)
{
	return x?g(y%x,x):y;
}

int f(int x)
{
	if(x==n)
	{
		int s=0,i,j;
		for(i=0;i<n;i++)
			s+=sta[i];
		if(s<2)
			return 0;
		for(i=0;i<n;i++)
			if(sta[i])
				for(j=i+1;j<n;j++)
					if(sta[j]&&g(arr[i],arr[j])>1)
						return 0;
		return 1;
	}
	sta[x]=0;
	int r=f(x+1);
	sta[x]=1;
	return f(x+1)+r;
}


int main()
{
	int p=0,m=0,r=0,c,t,i,j;
	const int mod=1000000007;
	scanf("%d",&n);
	for(i=0;i<n;i++)
		scanf("%d",&arr[i]);
	if(n<=20)
	{
		printf("%d",f(0));
		return 0;
	}
	for(i=0;i<n;i++)
		m=arr[i]>m?arr[i]:m;
	for(i=2;i<=m;i++)
	{
		if(!chk[i])
		{
			pri[p++]=i;
			for(j=i*i;j<=m;j+=i)
				chk[j]=1;
		}
	}
	c=1<<p;
	for(i=0;i<n;i++)
	{
		t=0;
		for(j=0;j<p;j++)
		{
			if(arr[i]%pri[j]==0)
				t|=1;
			t<<=1;
		}
		t>>=1;
		for(j=c-1;j>=0;j--)
		{
			if((t&j)==0)
			{
				mem[t|j]+=mem[j];
				mem[t|j]%=mod;
			}
		}
		mem[t]++;
	}
	for(i=0;i<c;i++)
	{
		r+=mem[i];
		r%=mod;
	}
	printf("%d",r-n);
	return 0;
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 1164 KB Output is correct
2 Correct 0 ms 1164 KB Output is correct
3 Correct 0 ms 1164 KB Output is correct
4 Correct 0 ms 1164 KB Output is correct
5 Correct 0 ms 1164 KB Output is correct
6 Correct 0 ms 1164 KB Output is correct
7 Correct 0 ms 1164 KB Output is correct
8 Correct 0 ms 1164 KB Output is correct
9 Correct 12 ms 1164 KB Output is correct
10 Correct 0 ms 1164 KB Output is correct
11 Correct 196 ms 1164 KB Output is correct
12 Correct 44 ms 1164 KB Output is correct
13 Correct 0 ms 1164 KB Output is correct
14 Correct 0 ms 1164 KB Output is correct
15 Correct 0 ms 1164 KB Output is correct
16 Correct 0 ms 1164 KB Output is correct
17 Correct 0 ms 1164 KB Output is correct
18 Correct 0 ms 1164 KB Output is correct
19 Correct 0 ms 1164 KB Output is correct
20 Correct 0 ms 1164 KB Output is correct
21 Correct 0 ms 1164 KB Output is correct
22 Correct 0 ms 1164 KB Output is correct
23 Correct 0 ms 1164 KB Output is correct
24 Correct 0 ms 1164 KB Output is correct
25 Correct 8 ms 1164 KB Output is correct
26 Correct 0 ms 1164 KB Output is correct
27 Correct 32 ms 1164 KB Output is correct
28 Correct 52 ms 1164 KB Output is correct
29 Correct 148 ms 1164 KB Output is correct
30 Correct 764 ms 1164 KB Output is correct
31 Correct 0 ms 1164 KB Output is correct
32 Correct 0 ms 1164 KB Output is correct
33 Correct 0 ms 1164 KB Output is correct
34 Correct 0 ms 1164 KB Output is correct
35 Correct 4 ms 1164 KB Output is correct
36 Correct 176 ms 1164 KB Output is correct
37 Correct 0 ms 1164 KB Output is correct
38 Correct 0 ms 1164 KB Output is correct
39 Correct 0 ms 1164 KB Output is correct
40 Correct 0 ms 1164 KB Output is correct
41 Correct 28 ms 1164 KB Output is correct
42 Correct 604 ms 1164 KB Output is correct

Subtask #2
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 1164 KB Output is correct
2 Correct 0 ms 1164 KB Output is correct
3 Correct 0 ms 1164 KB Output is correct
4 Correct 0 ms 1164 KB Output is correct
5 Correct 0 ms 1164 KB Output is correct
6 Correct 0 ms 1164 KB Output is correct
7 Correct 0 ms 1164 KB Output is correct
8 Correct 0 ms 1164 KB Output is correct
9 Correct 0 ms 1164 KB Output is correct
10 Correct 0 ms 1164 KB Output is correct
11 Correct 0 ms 1164 KB Output is correct
12 Correct 0 ms 1164 KB Output is correct
13 Correct 0 ms 1164 KB Output is correct
14 Correct 4 ms 1164 KB Output is correct
15 Correct 4 ms 1164 KB Output is correct
16 Correct 12 ms 1164 KB Output is correct
17 Correct 28 ms 1164 KB Output is correct
18 Correct 60 ms 1164 KB Output is correct
19 Correct 120 ms 1164 KB Output is correct
20 Correct 0 ms 1164 KB Output is correct
21 Correct 0 ms 1164 KB Output is correct
22 Correct 0 ms 1164 KB Output is correct
23 Correct 0 ms 1164 KB Output is correct
24 Correct 0 ms 1164 KB Output is correct
25 Correct 0 ms 1164 KB Output is correct
26 Correct 0 ms 1164 KB Output is correct
27 Correct 0 ms 1164 KB Output is correct
28 Correct 0 ms 1164 KB Output is correct
29 Correct 0 ms 1164 KB Output is correct
30 Correct 0 ms 1164 KB Output is correct
31 Correct 0 ms 1164 KB Output is correct
32 Correct 0 ms 1164 KB Output is correct
33 Correct 0 ms 1164 KB Output is correct
34 Correct 0 ms 1164 KB Output is correct
35 Correct 0 ms 1164 KB Output is correct
36 Correct 0 ms 1164 KB Output is correct
37 Correct 0 ms 1164 KB Output is correct
38 Correct 0 ms 1164 KB Output is correct
39 Correct 0 ms 1164 KB Output is correct
40 Correct 0 ms 1164 KB Output is correct
41 Correct 0 ms 1164 KB Output is correct
42 Correct 0 ms 1164 KB Output is correct
43 Correct 0 ms 1164 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 72 ms 1164 KB Output is correct
2 Correct 72 ms 1164 KB Output is correct
3 Correct 128 ms 1164 KB Output is correct
4 Correct 68 ms 1164 KB Output is correct
5 Correct 0 ms 1164 KB Output is correct
6 Correct 0 ms 1164 KB Output is correct
7 Correct 64 ms 1164 KB Output is correct
8 Correct 60 ms 1164 KB Output is correct
9 Correct 68 ms 1164 KB Output is correct
10 Correct 68 ms 1164 KB Output is correct
11 Correct 120 ms 1164 KB Output is correct
12 Correct 64 ms 1164 KB Output is correct
13 Correct 0 ms 1164 KB Output is correct
14 Correct 0 ms 1164 KB Output is correct
15 Correct 60 ms 1164 KB Output is correct
16 Correct 64 ms 1164 KB Output is correct
17 Correct 64 ms 1164 KB Output is correct
18 Correct 64 ms 1164 KB Output is correct
19 Correct 108 ms 1164 KB Output is correct
20 Correct 60 ms 1164 KB Output is correct
21 Correct 0 ms 1164 KB Output is correct
22 Correct 0 ms 1164 KB Output is correct
23 Correct 48 ms 1164 KB Output is correct
24 Correct 56 ms 1164 KB Output is correct
25 Correct 52 ms 1164 KB Output is correct
26 Correct 48 ms 1164 KB Output is correct
27 Correct 88 ms 1164 KB Output is correct
28 Correct 48 ms 1164 KB Output is correct
29 Correct 0 ms 1164 KB Output is correct
30 Correct 0 ms 1164 KB Output is correct
31 Correct 44 ms 1164 KB Output is correct
32 Correct 48 ms 1164 KB Output is correct
33 Correct 40 ms 1164 KB Output is correct
34 Correct 40 ms 1164 KB Output is correct
35 Correct 64 ms 1164 KB Output is correct
36 Correct 40 ms 1164 KB Output is correct
37 Correct 0 ms 1164 KB Output is correct
38 Correct 0 ms 1164 KB Output is correct
39 Correct 36 ms 1164 KB Output is correct
40 Correct 36 ms 1164 KB Output is correct

Subtask #4
0.0 / 27.0

# Verdict Execution time Memory Grader output
1 Runtime error 0 ms 1160 KB SIGSEGV Segmentation fault
2 Halted 0 ms 0 KB -

Subtask #5
0.0 / 36.0

# Verdict Execution time Memory Grader output
1 Runtime error 0 ms 1160 KB SIGSEGV Segmentation fault
2 Halted 0 ms 0 KB -