Select the correct alternative from the given choices....

Select the correct alternative from the given choices.
Insertion of node in a double-linked list requires how many changes to previous (prev) and next pointers?
(A) No changes
(B) 2 next and 2 prev
(C) 1 next and 1 prev
(D) 3 next and 3 prev

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Key Concepts

Pointer Management

Pointer management in the context of linked lists refers to the careful updating of node references during operations such as insertions, deletions, or rearrangements. In doubly linked lists, both the 'prev' and 'next' pointers must be updated to ensure that the list remains correctly linked in both directions after any modification.

Doubly Linked List

A doubly linked list is a linear data structure where each node contains two pointers: one pointing to the previous node and one pointing to the next node. This allows traversal in both forward and backward directions, making node operations, such as insertion and deletion, require careful handling of both pointers to maintain list integrity.

Node Insertion in Doubly Linked Lists

Node insertion in a doubly linked list involves adding a new node at a specific position and updating the surrounding nodes' pointers to include the new node in the sequence. This typically requires adjusting the next pointer of the node preceding the insertion point and the previous pointer of the node following the insertion point, as well as setting the new node's pointers accordingly.

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