Find All Numbers Disappeared in an Array
Easy
Topics
Given an array nums of n integers where nums[i] is in the range [1, n], return an array (ascending) of all integers in [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 <= n <= 10^5
- 1 <= nums[i] <= n
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