# Swap Consecutive Index Pairs

Given a list of integers `nums`

, swap each consecutive even indexes with each other, and swap each consecutive odd indexes with each other.

**Constraints**

`n ≤ 100,000`

where`n`

is the length of`nums`

https://binarysearch.com/problems/Swap-Consecutive-Index-Pairs

## Examples

### Example 1

**Input**

- nums =
`[0, 1, 2, 3, 4, 5, 6, 7, 8]`

**Output**

- answer =
`[2, 3, 0, 1, 6, 7, 4, 5, 8]`

**Explanation**

- 0 and 2 gets swapped
- 1 and 3 gets swapped
- 4 and 6 gets swapped
- 5 and 7 gets swapped
- 8 remains the same

## Leave a comment