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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                冒泡排序(Bubble Sort),是一種計算機科學領域的較簡單的排序算法。 <br> 它重復地走訪過要排序的元素列,依次比較兩個相鄰的元素,如果他們的順序(如從大到小、首字母從A到Z)錯誤就把他們交換過來。走訪元素的工作是重復地進行直到沒有相鄰元素需要交換,也就是說該元素列已經排序完成。 <br> 這個算法的名字由來是因為越大的元素會經由交換慢慢“浮”到數列的頂端(升序或降序排列),就如同碳酸飲料中二氧化碳的氣泡最終會上浮到頂端一樣,故名“冒泡排序”。 ``` function bubbleSort($numbers) { $cnt = count($numbers); for ($i = 0; $i < $cnt - 1; $i++) { for ($j = 0; $j < $cnt - $i - 1; $j++) { if ($numbers[$j] > $numbers[$j + 1]) { $temp = $numbers[$j]; $numbers[$j] = $numbers[$j + 1]; $numbers[$j + 1] = $temp; } } } return $numbers; } $num = array(20, 40, 60, 80, 30, 70, 90, 10, 50, 0); var_dump(bubbleSort($num)); ```
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