冒泡排序(C语言)

本文详细解释了冒泡排序算法的工作原理,通过一个具体的例子展示了排序前的数据结构和排序过程,以及对应的C语言源代码实现。

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一、N-S流程图;

二、运算原理说明;

1、排序前数据;

a[10] = { 34, 67, 90, 43, 124, 87, 65, 99, 132, 26 };

2、运算过程;

i = 0; j < 9;

j = 0;

34 > 67(不成立,不执行转换), 90, 43, 124, 87, 65, 99, 132, 26;

j = 1;

34, 67 > 90(不成立,不执行转换), 43, 124, 87, 65, 99, 132, 26;

j = 2;

34, 67, 90 > 43(成立,交换位置), 124, 87, 65, 99, 132, 26;

34, 67, 43, 90, 124, 87, 65, 99, 132, 26;

j = 3;

34, 67, 43, 90 > 124(不成立,不执行转换), 87, 65, 99, 132, 26;

j = 4;

34, 67, 43, 90, 124 > 87(成立,交换位置), 65, 99, 132, 26;

34, 67, 43, 90, 87, 124, 65, 99, 132, 26;

j = 5;

34, 67, 43, 90, 87, 124 > 65(成立,交换位置), 99, 132, 26;

34, 67, 43, 90, 87, 65, 124, 99, 132, 26;

j = 6;

34, 67, 43, 90, 87, 65, 124 > 99(成立,交换位置), 132, 26;

34, 67, 43, 90, 87, 65, 99, 124, 132, 26;

j = 7;

34, 67, 43, 90, 87, 65, 99, 124 > 132(不成立,不执行转换), 26;

j = 8;

34, 67, 43, 90, 87, 65, 99, 124, 132 > 26(成立,交换位置);

34, 67, 43, 90, 87, 65, 99, 124, 26, 132;

i = 1; j < 8;

j = 0;

34 > 67(不成立,不执行转换), 43, 90, 87, 65, 99, 124, 26, 132;

j = 1;

34, 67 > 43(成立,交换位置), 90, 87, 65, 99, 124, 26, 132;

34, 43, 67, 90, 87, 65, 99, 124, 26, 132;

j = 2;

34, 43, 67 > 90(不成立,不执行转换), 87, 65, 99, 124, 26, 132;

j = 3;

34, 43, 67, 90 > 87(成立,交换位置), 65, 99, 124, 26, 132;

34, 43, 67, 87, 90, 65, 99, 124, 26, 132;

j = 4;

34, 43, 67, 87, 90 > 65(成立,交换位置), 99, 124, 26, 132;

34, 43, 67, 87, 65, 90,  99, 124, 26, 132;

j = 5;

34, 43, 67, 87, 65, 90 > 99(不成立,不执行转换), 124, 26, 132;

j = 6;

34, 43, 67, 87, 65, 90,  99 > 124(不成立,不执行操作), 26, 132;

j = 7;

34, 43, 67, 87, 65, 90,  99, 124 > 26(成立,交换位置), 132;

34, 43, 67, 87, 65, 90,  99, 26, 124, 132;

i = 2; j < 7;

j = 0;

34 > 43(不成立,不执行转换), 67, 87, 65, 90,  99, 26, 124, 132;

j = 1;

34, 43 > 67(不成立,不执行转换), 87, 65, 90,  99, 26, 124, 132;

j = 2;

34, 43, 67 > 87(不成立,不执行转换), 65, 90,  99, 26, 124, 132;

j = 3;

34, 43, 67, 87 > 65(成立, 交换位置), 90,  99, 26, 124, 132;

34, 43, 67, 65, 87,  90,  99, 26, 124, 132;

j = 4;

34, 43, 67, 65, 87 > 90(不成立,不执行转换),  99, 26, 124, 132;

j = 5;

34, 43, 67, 65, 87,  90 > 99(不成立,不执行转换), 26, 124, 132;

j = 6;

34, 43, 67, 65, 87,  90,  99 > 26(成立,交换位置), 124, 132;

34, 43, 67, 65, 87,  90, 26, 99, 124, 132;

i = 3; j < 6;

j = 0;

34 > 43(不成立,不执行转换), 67, 65, 87,  90, 26, 99, 124, 132;

j = 1;

34, 43 > 67(不成立,不执行转换), 65, 87,  90, 26, 99, 124, 132;

j = 2;

34, 43, 67 > 65(成立,交换位置), 87,  90, 26, 99, 124, 132;

34, 43, 65, 67, 87,  90, 26, 99, 124, 132;

j = 3;

34, 43, 67, 65 > 87(不成立,不执行转换),  90, 26, 99, 124, 132;

j = 4;

34, 43, 67, 65, 87 > 90(不成立,不执行转换), 26, 99, 124, 132;

j = 5;

34, 43, 67, 65, 87,  90 > 26(成立,交换位置), 99, 124, 132;

34, 43, 67, 65, 87, 26, 90, 99, 124, 132;

i = 4; j < 5;

j = 0;

34 > 43(不成立,不执行转换), 67, 65, 87, 26, 90, 99, 124, 132;

j = 1;

34, 43 > 67(不成立,不执行转换), 65, 87, 26, 90, 99, 124, 132;

j = 2;

34, 43, 67 > 65(成立,执行转换), 87, 26, 90, 99, 124, 132;

34, 43, 65, 67, 87, 26, 90, 99, 124, 132;

j = 3;

34, 43, 65, 67 > 87(不成立,不执行转换), 26, 90, 99, 124, 132;

j = 4;

34, 43, 65, 67, 87 > 26(成立,交换位置), 90, 99, 124, 132;

34, 43, 65, 67,26, 87, 90, 99, 124, 132;

i = 5; j < 4;

j = 0;

34 > 43(不成立,不执行转换), 65, 67,26, 87, 90, 99, 124, 132;

j = 1;

34, 43 > 65(不成立,不执行转换), 67,26, 87, 90, 99, 124, 132;

j = 2;

34, 43, 65 > 67(不成立,不执行转换), 26,  87, 90, 99, 124, 132;

j = 3;

34, 43, 65, 67 > 26(成立,交换位置), 87, 90, 99, 124, 132;

34, 43, 65, 26, 67,  87, 90, 99, 124, 132;

i = 6; j < 3;

j = 0;

34 > 43(不成立,不执行转换), 65, 26, 67,  87, 90, 99, 124, 132;

j = 1;

34, 43 > 65(不成立,不执行转换), 26, 67,  87, 90, 99, 124, 132;

j = 2;

34, 43, 65 > 26(成立,交换位置), 67,  87, 90, 99, 124, 132;

34, 43, 26, 65, 67,  87, 90, 99, 124, 132;

i = 7; j < 2;

j = 0;

34 > 43(不成立,不执行转换), 26, 65, 67,  87, 90, 99, 124, 132;

j = 1;

34, 43 > 26(成立,交换位置), 65, 67,  87, 90, 99, 124, 132;

34, 26, 43, 65, 67,  87, 90, 99, 124, 132;

i = 8; j < 1;

j = 0;

34 > 26(成立,交换位置), 43, 65, 67,  87, 90, 99, 124, 132;

26, 34, 43, 65, 67,  87, 90, 99, 124, 132;

3、排序运算后;

a[10] = { 34, 26, 43, 65, 67,  87, 90, 99, 124, 132 };

三、运行结果;

四、源代码;

# define _CRT_SECURE_NO_WARNINGS
# include <stdio.h>

int main()
{
	//初始化变量值;
	int a[10] = { 0 };
	int i = 0;
	int j = 0;
	int t = 0;

	//提示用户;
	printf("请输入10个数值:");

	//循环获取数值;
	for (i = 0; i < 10; i++)
	{
		//获取;
		scanf("%d", &a[i]);
	}

	//换行;
	printf("\n");

	//循环冒泡排序;
	for (i = 0; i < 9; i++)
	{
		//冒泡排序;
		for (j = 0; j < 9 - i; j++)
		{
			//判断;
			if (a[j] > a[j + 1])
			{
				//交换;
				t = a[j];
				a[j] = a[j + 1];
				a[j + 1] = t;
			}
		}
	}

	//提示用户;
	printf("10个数按从小到大的顺序输出结果为:");

	//输出;
	for (i = 0; i < 10; i++)
	{
		//打印;
		printf("%d ", a[i]);
	}

	return 0;
}

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