Used linked list c++ language please

Question 1 Consider a doubly linked list that contains some data. That data can be integers. Add a new method temoveDupliates0" to remove duplicate values from the doubly linked list in the following class "DoublyLL". For your convenience main method also provided. You can add more methods if required Below is the expected output of the program. You can print in any order you like Printing in Forward order 1 1 2 2 3 34 5 6 1 2 uplicates have been removed! Printing in Forward order 1 2 3 4 5 6 Printing in Reverse order 6 5 4 3 2 1 Press any key to continue