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Update 面试中的 10 大排序算法总结.md #99

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2 changes: 1 addition & 1 deletion Part3/Algorithm/Sort/面试中的 10 大排序算法总结.md
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Expand Up @@ -107,7 +107,7 @@ public class InsertSort {
}</pre>
</div>
<h2>快速排序</h2>
<p>快速排序一听名字就觉得很高端，在实际应用当中快速排序确实也是表现最好的排序算法。冒泡排序虽然高端，但其实其思想是来自冒泡排序，冒泡排序是通过相邻元素的比较和交换把最小的冒泡到最顶端，而快速排序是比较和交换小数和大数，这样一来不仅把小数冒泡到上面同时也把大数沉到下面。</p>
<p>快速排序一听名字就觉得很高端，在实际应用当中快速排序确实也是表现最好的排序算法。快速排序虽然高端，但其实其思想是来自冒泡排序，冒泡排序是通过相邻元素的比较和交换把最小的冒泡到最顶端，而快速排序是比较和交换小数和大数，这样一来不仅把小数冒泡到上面同时也把大数沉到下面。</p>
<p>举个栗子：对5,3,8,6,4这个无序序列进行快速排序，思路是右指针找比基准数小的，左指针找比基准数大的，交换之。</p>
<p>5,3,8,6,4 用5作为比较的基准，最终会把5小的移动到5的左边，比5大的移动到5的右边。</p>
<p>5,3,8,6,4 首先设置i,j两个指针分别指向两端，j指针先扫描（思考一下为什么？）4比5小停止。然后i扫描，8比5大停止。交换i,j位置。</p>
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