soal_1

<?php

function find($arr, $n, $sum)
{
    for ($i = 0; $i < $n - 1; $i++)
    {
        for ($j = $i + 1; $j < $n - 1; $j++)
        {
            for ($k = $j + 1; $k < $n; $k++)
            {
                if ($arr[$i] + $arr[$j] +
                    $arr[$k] == $sum)
                {
                    echo $arr[$i] , " + ",
                         $arr[$j] , " + ",
                         $arr[$k] , "= 0\n";
                }else{
                    echo $arr[$i] , " + ",
                    $arr[$j] , " + ",
                    $arr[$k] , "= Not Found\n";
                }
            }
        }
    }
}
$arr = array (2,1,5,7,4,-8,-3,-1);
$n = sizeof($arr);
find($arr, $n, 0);