/limeshap-test-result

Test Question and Results

Task 1:

Make this work (repeat 3 times the contents of an array):

repeat([1,2,3]) //[1,2,3,1,2,3,1,2,3]

Your solution:

function repeat($a) {
  return array_merge($a, $a, $a);
}

Task 2:

Make this work (no vowels, lowercase except the first letter):

reformat("liMeSHArp DeveLoper TEST") //Lmshrp dvlpr tst

Your solution:

function reformat($string) {
    $vowel = ['a', 'e', 'i', 'o', 'u'];
    return ucfirst(str_replace($vowel, '', strtolower($string)));
}

Task 3 (optional, for bonus points):

Make this work (without using any built in functions, only a for loop, return the next binary number in a string or as an array)

next_binary_number([1,0]) // [1,1]

// possible test cases:
// [1,0] => [1,1]
// [1,1] => [1,0,0]
// [1,1,0] => [1,1,1]
// .......
// [1,0,0,0,0,0,0,0,0,1] => [1,0,0,0,0,0,0,0,1,0]

Your solution:

function next_binary_number(array $binary) {
    $binaryDigits = array_reverse($binary);
    $i = 0;
    $decimal = 0;
    foreach($binaryDigits as $binaryDigit) {
        $answer = $binaryDigit * pow(2, $i);
        $decimal += $answer;
        $i++;
    }
    $decimal = $decimal + 1;

    $nextBinaryString = [];
    while ($decimal>=1){
        $leftOver = $decimal % 2;
        $decimal = floor($decimal/2);
        $nextBinaryString[] = $leftOver;
    }

    return implode('', array_reverse($nextBinaryString));
}