14. Remove Element
Given an array nums and a value val, remove every occurrence of val in place and return the number of remaining elements.
Example 1:
Input: nums = [3,2,2,3], val = 3 Output: 2
Example 2:
Input: nums = [0,1,2,2,3,0,4,2], val = 2 Output: 5
Constraints:
0 <= nums.length <= 1000 <= val <= 50