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Question

A circularly linked list is used to represent a Queue. A single variable p is used to access the Queue. To which node should p point such that both the operations enQueue and deQueue can be performed in constant time?

a.

rear node

b.

front node

c.

not possible with a single pointer

d.

node next to front

Answer: (a).rear node

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Q. A circularly linked list is used to represent a Queue. A single variable p is used to access the Queue. To which node should p point such that both the operations enQueue and...

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