zhengfan2014

// eg: Twelve(29) => [1,1,1,0,1]                           
function Twelve($num)
{
    $num = (int)$num;
    $result = [];
    if ($num == 2) {
        $result = [0, 1];
    } else {
        while ($num>2) {
            $result[]=$num%2;