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Fish Demo Task at Codility.com

codility netbeansLesson 5 – Stacks and Queues – Fish 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: //codility.com/demo/take-sample-test/fish

Solution in php:

function solution($A, $B) {
    $alive_count      = 0;
    $downstream       = array();
    $downstream_count = 0;
    $cnt              = count($A);
    for($i = 0; $i < $cnt; $i++){
        if($B[$i] == 1){
            $downstream[] = $A[$i];
            $downstream_count++;
        }
        else{
            while($downstream_count != 0){
                if($downstream[count($downstream) - 1] < $A[$i]){
                    $downstream_count--;
                    array_pop($downstream);
                }
                else{
                    break;
                }
            }
            if($downstream_count == 0){
                $alive_count++;
            }
        }
    }
    $alive_count += count($downstream);
    return $alive_count;
}

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: //codility-test-questions.blogspot.com/2013/01/my-experience-with-codility-test.html