Problem:
Score: 200 points

Problem Statement

The number 105 is quite special - it is odd but still it has eight divisors.
Now, your task is this: how many odd numbers with exactly eight positive divisors are there between 1 and N (inclusive)?

Constraints

N is an integer between 1 and 200 (inclusive).

Input

Input is given from Standard Input in the following format:

N

Output

Print the count.

Sample Input 1

105

Sample Output 1

1

Among the numbers between 1 and 105, the only number that is odd and has exactly eight divisors is 105.

Sample Input 2

7

Sample Output 2

0

1 has one divisor. 3, 5 and 7 are all prime and have two divisors. Thus, there is no number that satisfies the condition.

Solution in C++14 (GCC 5.4.1) (judge verdict: Accepted)

#include <iostream>
using namespace std;
int main(int argc, char *argv[])
{
	int n;
	cin>>n;
	int count2=0;
	for(int i=1;i<=n;i++)
	{
		int count1=0;
		for(int j=1;j<=i;j++)
		{
			if(i%j==0&&j%2)
			{
				count1++;
			}
		}
		if(count1==8)
		{
			count2++;
		}
	}
	cout<<count2;
	return 0;
}