PHP實現用迭代實現數組的快速排序

function quicksortX(&$seq) { $stack = array($seq); $sort = array(); while ($stack) { $arr = array_pop($stack); if(count($arr) <= 1){ if (count($arr) == 1) { $sort[] = &$arr[0]; } continue; } $k = $arr[0]; $x = array(); $y = array(); $_size = count($arr); for ($i = 1; $i < $_size; $i++) { if ($arr[$i] <= $k) { $x[] = &$arr[$i]; } else { $y[] = &$arr[$i]; } } !empty($y) && array_push($stack, $y); array_push($stack, array($arr[0])); !empty($x) && array_push($stack, $x); } return $sort; } 複製代碼

迭代, PHP

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