Permutations solve

[DerekAyalaDev]

46. Permutations

Given an array nums of nums distinct integers, return all the possible permutations. You can return the answer in any order.

Example 1:

Inputs: nums = [1, 2, 3]
Output: [[1,2,3],[1,3,2],[2,1,3],[2,3,1],[3,1,2],[3,2,1]]

Example 2:

Input: nums = [0,1]
Output: [[0,1],[1,0]]

Example 3:

Input: nums = [1]
Output: [[1]]