How is the deletion of a node at the end of a Doubly Linked List different from a Singly Linked List?a)It does not require any pointer update.b)It involves updating two pointers.c)It requires traversing the entire list.d)It requires finding the middle of the list
Question
How is the deletion of a node at the end of a Doubly Linked List different from a Singly Linked List?a)It does not require any pointer update.b)It involves updating two pointers.c)It requires traversing the entire list.d)It requires finding the middle of the list
Solution
The deletion of a node at the end of a Doubly Linked List is different from a Singly Linked List in the way that it involves updating two pointers. In a Doubly Linked List, each node has two references which are used to traverse both forward and backward. When deleting a node at the end, we need to update the 'next' pointer of the previous node to NULL and the 'previous' pointer of the last node (which is to be deleted) to NULL.
On the other hand, in a Singly Linked List, each node has only one reference to the next node. So, when deleting a node at the end, we only need to update the 'next' pointer of the previous node to NULL.
So, the correct answer is b) It involves updating two pointers.
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