Given an unsorted array nums, reorder it in-place such that nums[0] <= nums[1] >= nums[2] <= nums[3]….

```
Input: [20,10,8,6,4,2]
Output:[2,10,6,8,4,20]
```

def sorty(arra_nums): for i in range(len(arra_nums)): if (i%2 == 1) == (arra_nums[i-1] > arra_nums[i]): arra_nums[i-1],arra_nums[i] = arra_nums[i],arra_nums[i-1] return arra_nums arr=list(map(int,input('Array_nums : ').split(' '))) #or arr=[20,10,8,6,4,2] print(sorty(arr))

**Input_1:**

Array_nums : 20 10 8 6 4 2**Output:**

[2, 10, 6, 8, 4, 20]

**Input_2:**

Array_nums : 10 5 6 3 2 20 100 80**Output:**

[5, 10, 3, 6, 2, 100, 20, 80]

**Input_3:**

Array_nums : 3 6 5 10 7 10**Output:**

[3, 6, 5, 10, 7, 10]

**Input_4:**

Array_nums : 6 3 10 5 20 7**Output:**

[3, 10, 5, 20, 6, 7]

**Illustration of the Output:**