026. Remove Duplicates from Sorted Array.cpp

class Solution {
public:
    int removeDuplicates(vector<int>& nums) {
        int i = 0, j = 0;
        while(j < nums.size()){
            while(j < nums.size() - 1 && nums[j] == nums[j + 1]) j++;
            nums[i++] = nums[j++];
        }
        return i;
    }
};