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Permutations

backtrackingpermutations

Permutations

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

Example 1

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

Constraints

  • 1 <= nums.length <= 6
  • -10 <= nums[i] <= 10
  • All the integers of nums are unique.

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Input:
{
  "nums": [
    1,
    2,
    3
  ]
}
Expected Output:
[
  [
    1,
    2,
    3
  ],
  [
    1,
    3,
    2
  ],
  [
    2,
    1,
    3
  ],
  [
    2,
    3,
    1
  ],
  [
    3,
    1,
    2
  ],
  [
    3,
    2,
    1
  ]
]