PHP实现快速排序算法
时间:2021-07-01 10:21:17
帮助过:16人阅读
- function quicksort($seq) {
- if (count($seq) > 1) {
- $k = $seq[0];
- $x = array();
- $y = array();
- for ($i=1; $i
- if ($seq[$i] <= $k) {
- $x[] = $seq[$i];
- } else {
- $y[] = $seq[$i];
- }
- }
- $x = quicksort($x);
- $y = quicksort($y);
- return array_merge($x, array($k), $y);
- } else {
- return $seq;
- }
- }
-
- $arr = array(12,2,16,30,8,28,4,10,20,6,18);
- print_r(quicksort($arr));
- ?>
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PHP