Remove Duplicates From Sorted Array

Since the array was already sorted it was straightforward.

Runtime: 108 ms, faster than 42.72% of Python3 online submissions for Remove Duplicates from Sorted Array.

class Solution:
    def removeDuplicates(self, nums):
        """
        :type nums: List[int]
        :rtype: int
        """
        count = len(nums)
        delta = 1
        
        
        for i in range(count-1):
            while i+delta < len(nums) and nums[i+delta] == nums[i]:
                delta += 1
                count -= 1
            if i+delta < len(nums):
                nums[i+1] = nums[i+delta]
                
        return count