Given an array nums of distinct integers, return all the possible permutations. You can return the answer in any order.
- An array of distinct integers
nums.
- 1 <= nums.length <= 6
- -10 <= nums[i] <= 10
Input: nums = [1,2,3]
Output: [[1,2,3],[1,3,2],[2,1,3],[2,3,1],[3,1,2],[3,2,1]]