member and non-member functions

c++

3. Modify the arraylistType by adding a member function that inserts the double of each element after the element (the function replaces each element with 2 elements x and y where x is the element itself and y is x2 ). For Example, if the list contains 2134350 and you call the member function as in L. insertDouble(); The list content will then be changed to 241236483651000 The list should not be empty and should fit the resulting list. Make sure to expand the list if it does not fit the resulting list