调整数组使奇数全部都位于偶数前面

#include<stdio.h>

void show(int *arr, int len)//输出函数
{
	int i;
	for (i = 0; i < len; i++)
	{
		printf("%d ", arr[i]);
	}
}
void Swap_arr(int *arr, int len)
{
	int left = 0;
	int right = len - 1;
	while (left < right)
	{
		while (left < right&&arr[left] % 2 == 1)
		{
			left++;
		}
		while (left < right&&arr[right] % 2 == 0)
		{
			right--;
		}
		if (left < right)
		{
			int temp;
			temp = arr[left];
			arr[left] = arr[right];
			arr[right] = temp;
		}
	}
		show(arr, len);
}
int main()
{
	int arr[] = {1,2,3,4,5,6,7,8,9};
	int len = sizeof(arr) / sizeof(arr[0]);
	Swap_arr(arr, len);
	return 0;
}