# Leetcode 367 - Valid perfect square

`Note:`

- Use
`division`

instead of`multiplication`

.

`Question:`

Given a `positive`

integer num, write a function which returns True if num is a perfect square else False.

Follow up: `Do not`

use any built-in library function such as sqrt.

`Example:`

1 | Input: num = 16 |

`Code:`

1 | /** |