Question: Consider, a singly circular linked list is used to represent a Queue. There is only one p variable to access the queue. To which node

Consider, a singly circular linked list is used to represent a Queue. There is only one p variable to access the queue. To which node should p point such that both the operations enQueue and deQueue can be performed in constant time? (GATE 2004)

Front P ? Rear

A. rear node

B. front node

C. not possible with a single pointer

D. node next to front

Front P ? Rear

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