DLL: Remove

The updated code includes the implementation of the remove method in the DoublyLinkedList class. This method allows you to remove a node at a specified index from the doubly linked list.

The remove method first checks if the provided index is valid (between 0 and the length of the list minus 1). If the index is 0, it calls the pop_first method to remove and return the first node. If the index is equal to the length of the list minus 1, it calls the pop method to remove and return the last node. For any other valid index, it retrieves the node at that index using the get method.

The remove method then updates the references of the neighboring nodes to remove the node from the list. It sets the next and prev references of the neighboring nodes to bypass the node being removed. Finally, it updates the length of the list and returns the removed node.

The DoublyLinkedList class also includes other methods from the previous implementation, such as append to add a node at the end, pop to remove and return the last node, prepend to add a node at the beginning, pop_first to remove and return the first node, print_list to display the values of the nodes in the list, get to retrieve a node at a specific index, set_value to update the value of a node at a specific index, and insert to insert a new node at a specified index.