Remove Duplicates from Sorted Array

Given a sorted array A consisting of duplicate elements.

Your task is to remove all the duplicates and return the length of the sorted array of distinct elements consisting of all distinct elements present in A.

Note: You need to update the elements of array A by removing all the duplicates

First and only argurment containing the integer array A.

Input 1:

A = [1, 1, 2]

Input 2:

A = [1, 2, 2, 3, 3]

Output 1:

2

Output 2:

3

Explanation 1:

Updated Array: [1, 2, X] after rearranging. Note that there could be any number in place of x since we dont need it.
We return 2 here.

Explanation 2:

Updated Array: [1, 2, 3, X, X] after rearranging duplicates of 2 and 3.
We return 3 from here.