Data Structures: Solved Problem on Doubly Linked List
Question discussed:
Consider the implementation of an unsorted doubly linked list. Suppose it has its representation with a head pointer and tail pointer. Given the representation, which of the following operation can be implemented in O(1) time?
1) Insertion at the front of the linked list.
2) Insertion at the end of the linked list.
3) Deletion of the front node of the linked list.
4) Deletion of the last node of the linked list.

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