evaluación técnica para reclutamiento 11

technical_test.php

<?hp
/*****************************
*
* Prueba para reclutamiento 11
*
******************************/

//P1
function weight_word($string) {
    
    static $charMap = array(
        'A' => 2, 'B' => 3, 'C' => 5, 'D' => 1, 'E' => 1, 'F' => 8, 'G' => 9,
        'H' => 2, 'I' => 3, 'J' => 5, 'K' => 1, 'L' => 1, 'M' => 8, 'N' => 9,
        'Ñ' => 2, 'O' => 3, 'P' => 5, 'Q' => 1, 'R' => 1, 'S' => 8, 'T' => 9, 
        'U' => 2, 'V' => 3, 'W' => 5, 'X' => 1, 'Y' => 1, 'Z' => 8,
    );
    
    $sum = 0;    
    
    for($i = 0; $i < strlen($string); $i++) {
        
        $sum += $charMap[ucfirst($string[$i])];
    }
    
    return $sum;
}

//P2 usando P1 y P4
function get_strongest_word(Array $array) {
    
    $map = transform_to_map($array);
    $keys = get_array_keys($map);
    $sortKeys = bsort($keys);
    
    return $map[$sortKeys[count($sortKeys)-1]];
}

function transform_to_map(Array $array) {
    $wordMap = [];
    
    foreach($array as $value){
        $wordMap[weight_word($value)] = $value;
    }
    
    return $wordMap;
}

function get_array_keys(Array $array) {
    $key_array = [];
    foreach($array as $key => $value) {
        $key_array[] = $key;
    }
    
    return $key_array;
}

$array = ['aftab', 'luis', 'casa', 'torito', 'dedo'];

var_dump(get_strongest_word($array));

//P3

function isEven($number) {
    
    if($number % 2 == 0) {
        return true;
    }
    
    return false;
}

var_dump(isEven(5));
var_dump(isEven(2));

//P4

function bsort(Array $array)
{
	do
	{
		$swap = false;
		
		for( $i = 0 ; $i < count( $array ) - 1; $i++ )
		{
			if( $array[$i] > $array[$i + 1] )
			{
				$temp = $array[$i];
				$array[$i] = $array[$i+1];
				$array[$i+1] = $temp;
				$swap = true;
			}
		}
		
	} while ( $swap );
    
    return $array;
}

$numeros = [2, 50, 4, 1, 100, 80];

var_dump(bsort($numeros));

//P5

function reverse_string($string) {
    $words = explode(' ', $string);
    $output = [];
    
    $reverse = null;
    foreach($words as $key => $word) {
        for($i = strlen($word)-1; $i >= 0 ; $i--) {
            $reverse .= $word[$i];
        }
        
        $output[] = $reverse;
        $reverse = null;
    }
    
    return implode(' ', $output);
}

$string = "tres tristes tigres tragaban trigo en un trigal";
var_dump(reverse_string($string));