Lesson 2 – Counting Elements – PermCheck (permutation) 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/perm_check
Solution in php:
function solution($A) {
sort($A, SORT_NUMERIC);
$i=0;
$c = count($A);
while($i < $c){
if($i+1 <> $A[$i++]){
return 0;
}
}
return 1;
}
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://codility-test-questions.blogspot.com/2013/01/my-experience-with-codility-test.html
