Web Projects Consulting

Brackets Demo Task at Codility.com

codility netbeans Lesson 5 – Stacks and Queues – Brackets 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/brackets

Solution in php:

function solution($S) {
if(empty($S)){
return 1;
}
$S       = str_split($S);
$matched = array("]" => "[", "}" => "{", ")" => "(");
$to_push = array("[", "{", "(");
$stack   = array();
foreach($S as $v){
if(in_array($v, $to_push)){
$stack[] = $v;
}
else{
if(!count($stack)){
return 0;
}
elseif($matched[$v] != array_pop($stack)){
return 0;
}
}
}
return !count($stack) ? 1 : 0;
}

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

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.