<?php //64160267 Kanokpol Promtha // Insertion Sort function exam04($arry){ $count = 0; for($i = 0; $i < count($arry); $i++) { $tmp = $arry[$i]; $j = $i - 1; while($j >= 0 && $arry[$j] > $tmp) { $arry[$j + 1] = $arry[$j]; $j = $j - 1; // count sum $count++; } $arry[$j + 1] = $tmp; } return $count; } function test_01(){ if(exam04([2, 1, 3, 1, 2]) == 4){ echo "pass"; } else { echo "fail"; } } test_01();