026_Remove_Duplicates_From_Sorted_Array.cpp

class Solution {
public:
    int removeDuplicates(vector<int>& nums) {
        int n=nums.size();
       int i=0;
        for(int j=1;j<n;j++){
            if(nums[i]!=nums[j]){
                i++;
                nums[i]=nums[j];
            }
        }
        return i+1;
      }

};