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Question

In a circular linked list, insertion of a record involves modification of

A
One pointer
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B
Two pointer
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C
Multiple pointer
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D
No pointer
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Solution

The correct option is B Two pointer

In a circular linked list, insertion of a record involves modification of two pointer.

A circular linked list is a linked list in which the last node points to the head or front node making the data structure to look like a circle. There is no NULL at the end. A circular linked list can be a singly circular linked list or doubly circular linked list.

For insertion of node in the beginning we need traverse the whole list. Also, for insertion and the end, the whole list has to be traversed. If instead of start pointer we take a pointer to the last node then in both the cases there won’t be any need to traverse the whole list. So insertion in the begging or at the end takes constant time irrespective of the length of the list.



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