冒泡排序 (局部有序优化) 与 选择排序

#include 
#include 

int a[7] = { 4,2,3,1,6,7,8 };
int b[7] = { 4,2,3,1,6,7,8 };

void bubble_sort(int* a, int len) // 优化版本的冒泡排序
{
	for (int end = len - 1; end > 0; end--)
	{
		int sortIndex = 1;
		for (int begin = 1; begin <= end; begin++)
		{
			if (a[begin] < a[begin - 1])
			{
				int b = a[begin];
				a[begin] = a[begin - 1];
				a[begin - 1] = b;
				sortIndex = begin;
			}
		}
		end = sortIndex;
	}

	for (int i = 0; i < len; i++)
	{
		printf("%d_", a[i]);
	}
	printf("n");

}

void selset_sort(int* a, int len) // 选择排序，每一轮将最大数字与该轮的最后一个位置交换
{
	for (int end = len - 1; end > 0; end--)
	{
		int maxindex = 0;
		for (int begin = 1; begin <= end; begin++)
		{
			if (a[maxindex] <= a[begin])// 存在数字比 maxindex 那个数字大，则记录下标 
			{
				maxindex = begin;
			}
		}

		int temp = a[maxindex];
		a[maxindex] = a[end];
		a[end] = temp;
	}
	for (int i = 0; i < len; i++)
	{
		printf("%d_", a[i]);
	}
}

int main(int argc, char** argv)
{
	bubble_sort(a, sizeof(a) / sizeof(a[0]));
	selset_sort(b, sizeof(b) / sizeof(b[0]));
    return 1;
}