27. Remove Element

class Solution {
public:
    int removeElement(vector<int>& nums, int val) {
        int k=0;
        vector<int> index;
        for(auto iter=nums.begin();iter!=nums.end();iter++)
        {
            if(*iter!=val)
            {
                index.push_back(*iter);             
                k++;
            }

                
        }

        nums=index;

        return k;
    }
};