Question

What I need to accomplish is,

I have an array, 2 3 4 5 6 7 8 9 10

I need to check if any numbers in the array divides any other number in the array perfectly. (%=0) If yes, unset the the number.

Its over my head and I cant get it working and everything I tried gives me infinite loops and its making me ill. (lol)

I am not including any codes, because all I could come up with is a nested forloop which doesnt work 🙁

So here is a sample :

Input array :2 3 4 5 6 7 8

Output = 5 6 7 8

Any idea guys?

UPDATE:

Cracked the nut myself with bit more debugging. (Incase if that can be helpful for someone in future.)

// use array_unique, array_values and $size = sizeof($array)
for ($i = 0; $i < $size; $i++)
{
for ($j = $size - 1; $j > $i; $j--)
    if ($numbers[$j] % $numbers[$i] == 0)
    {
        unset($numbers[$i]);
        break;
    }
}

Answer 1

I will not do this in real code, just because I think you want to do that yourself.

LoopA iterating the intput array:
  LoopB iterating the input array:
    check division of loopA value and loopB value, and add the value of loopA to a new array accordingly
  End loopB
End loopA
Print the new array

Note: This is not complete, but it certainly should give you a start on how to continue.