# Remove Duplicates from Sorted Array
# -100 <= nums[i] <= 100


class Solution:
    def removeDuplicates(self, nums: list[int]) -> int:
        count = 0
        if not nums:
            return count
        k = 1
        for i in range(1, len(nums)):
            if nums[i] != nums[i - 1]:
                nums[k] = nums[i]
                k += 1

        return k