26. Remove Duplicates from Sorted Array.py

class Solution:
    def removeDuplicates(self, nums: List[int]) -> int:
        #two pointer approach
        
        i=0;
        for j in range(1, len(nums)) :
            if nums[j] != nums[i] :
                i+=1;
                nums[i] = nums[j];
                
     
        return i+1;