This is a class that builds and outputs all possible sums given currency denominations where each denomination equals an arbitrary sum
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Below is a code sample displaying how to run this challenge... this can also be found in src/test_output.php
include('Challenge.php');
$challenge = new Challenge();
//build_possibilities with default values
$challenge->build_possibilities();
$challenge->change_currency("Coin,1.5,Arrowhead,3,Button,150");
$challenge->build_possibilities();
Run /vendor/bin/phpunit to run the PHPunit tests