Question

How to find the maximum value we can achieve by picking k elements from an array in PHP

Answer 1

function maxSumOfK($arr, $k) {
    rsort($arr); // sort in descending order

    $sum = 0;
    for ($i = 0; $i < $k; $i++) {
        $sum += $arr[$i];
    }

    return $sum;
}

$arr = [11, 2, 4, 9, 3, 6, 5, 1];
$k = 3;

echo maxSumOfK($arr, $k); 



/*
run:
 
26
 
*/

 

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