MinPerimeterRectangle Demo Task at Codility.com

Codility.com Tests 100/100 Solutions

Lesson 8 –  Prime and composite numbers – MinPerimeterRectangle demo task solution code written in php. Gives 100/100 score at the time of publishing.

The description of the problem is copyrighted, so please see the following link for it: https://codility.com/demo/take-sample-test/min_perimeter_rectangle

Solution in php:

function solution($N) {
    $minPer = null;
    for($i = 1; $i * $i <= $N; $i++){
        if($N % $i == 0){
            if(is_null($minPer)){
                $minPer = 2 * ($N / $i + $i);
                continue;
            }
            $minPer = min($minPer, 2 * ($N / $i + $i));
        }
    }
    return $minPer;
}

Given “AS IS”, can be ported from other languages from solutions found on the internet, please use with care.

Please note: we think that codility.com does not give a correct assessment of your real-world programming skills. For instance, reading the below would bring more understanding why: http://x20x.co.uk/2014/02/why-i-refuse-to-use-codility-and-so-should-you/