Problem statement Given an array nums of n integers where nums[i] is in the range [1, n], return an array of all the integers in the range [1, n] that do not appear in nums. Example 1 Input: nums = [4,3,2,7,8,2,3,1]
Output: [5,6] Example 2 Input: nums = [1,1]
Output: [2] Constraints n == nums.length. 1 <=…