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【排序算法】深入解析快速排序（霍尔法&&三指针法&&挖坑法&&优化随机选key&&中位数法&&小区间法&&非递归版本）

快速排序快速排序是一种分治算法。它通过一趟排序将数据分割成独立的两部分,然后再分别对这两部分数据进行快速排序。本文将用3种方法实现：霍尔法霍尔法是一种快速排序中常用的单趟排序方法，由霍尔先发现。它通过选定一个基准数key（通常是第一个元素），然后利用双指针left和right的方式进行排序...

[数据结构 -- 手撕排序算法第六篇] 递归实现快速排序（集霍尔版本，挖坑法，前后指针法为一篇的实现方法，很能打）2

5、前后指针版本5.1 实现思路我们规定排升序，排序数组名称为a，基准值 key。1.选出一个key，key可以是需要排序的数组中任意一个元素，我们依然选key为a[left]；2.定义一个prev指针，和一个cur指针，初始化 prev 指向数组首部位置，cur 指向 prev 的...

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[数据结构 -- 手撕排序算法第六篇] 递归实现快速排序（集霍尔版本，挖坑法，前后指针法为一篇的实现方法，很能打）1

1、常见的排序算法1.1 交换排序基本思想冒泡排序属于交换排序之一，我们先来了解以下冒泡排序思想。基本思想：所谓交换，就是根据序列中两个记录键值的比较结果来对换这两个记录在序列中的位置，交换排序的特点是：将键值较大的记录向序列的尾部移动，键值较小的记录向序列的前部移动。2、快速排序的实现方法递归实现...

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更新时间 2024-04-30 18:19:03

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