Leetcode 26: https://leetcode.com/problems/remove-duplicates-from-sort… — C Programming Language || Hands On Coding — TG.ME

class Solution {
public:
    int removeDuplicates(vector<int>& nums) {
        int lastUniqueElementIdx = 0;

        for (int i = 1; i < nums.size(); i++) {
            if (nums[lastUniqueElementIdx] != nums[i]) {
                nums[lastUniqueElementIdx + 1] = nums[i];
                lastUniqueElementIdx++;
            }
        }
        return lastUniqueElementIdx + 1;
    }
};