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数据结构| |直接插入排序
阅读量:141 次
发布时间:2019-02-26

本文共 488 字,大约阅读时间需要 1 分钟。

直接插入排序思想:对于一个给定数组,将数组的第一个元素当做已经排好序的序列,然后每次讲数组元素的一个元素插入到该有序序列中,直到插完

思想:对于一个数组,先将第一个元素当做有序的序列,然后依次将后面的元素插入到这个序列中。

方法:每次用前一个数和要放入的元素进行比较,如果大于的话就将其向后移动,最后找到要插入的位置,在进行插入。

代码如下;

void insert_sort(int arr[], int sz){	int i = 0;	int j = 0;	for (i = 1; i < sz; i++)	{		//将要插入的元素与有序的最后一个元素进行比较		if (arr[i] < arr[i - 1])		{			int tmp = arr[i];			//找要插入的位置			for (j = i - 1; j >= 0 && arr[j] > tmp; j--)			{				arr[j + 1] = arr[j];			}			arr[j + 1] = tmp;		}	}}

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