26. Remove Duplicates from Sorted Array

class Solution {
    public int removeDuplicates(int[] nums) {
        
        if (nums.length < 1) {
            return 0;
        }
        int size = 0;
        int prev = nums[0];
        int loc = 1;
        
        for (int i = 1; i < nums.length; i++) {
            if (nums[i] != prev) {
                prev = nums[i];
                nums[loc] = nums[i];
                loc++; 
            }
        }
        
        return loc; 
    }
}