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 PHP7 (7.0.15) (judge verdict: Accepted)

<?php
$stdin = trim(fgets(STDIN)); 
$maxTarget = (int)$stdin;
$ans = 0;
for ($target = 1; $target <= $maxTarget; $target++) {
    $mCount = 0;
    if ($target % 2 != 0) {
        for ($m = 1; $m <= $target; $m++) {
            if ($target % $m == 0) {
                $mCount++;
            }
            if ($mCount === 8) {
                $ans++;
                break;
            }
        }
    }
}
printf($ans);