26. Remove Duplicates from Sorted Array (Python)

remove_duplicates_from_sorted_array.py

class Solution:
    def removeDuplicates(self, nums: List[int]) -> int:
        if len(nums) == 1:
            return 1
        
        non_dupes_ptr = 1

        for num in nums:
            if nums[non_dupes_ptr - 1] < num:
                nums[non_dupes_ptr] = num
                non_dupes_ptr += 1

        return non_dupes_ptr