The Priority. Queue ADT As an ADT, a priority queus P supports the following functions: • • • • isPQueueEmpty(): returns true if pqueue is empty otherwise false size(): Return the number of elements in P. smpty(): Return true if P is empty and false otherwise. insert(e): Insert a new element e into, P. ● min): Return a reference to an element of P with the smallest associated kex value (but do not remove it); an error condition occurs if the priority queue is empty. • removeMin(): Remove from P the element referenced by min(); an error condition occurs if the priority queue is empty. Example: The following table shows a series of operations and their effects on an initially empty priority queue P. Each element consists of an integer, which we assume to be sorted according to the natural ordering of the integers. Note that each call to min returns a reference to an entry in the queue, not the actual value. Although the "Priority. Queue" column shows the items in sorted order, the priority queus need not store elements in this order.

The Priority. Queue ADT As an ADT, a priority queus P supports the following functions: • • • • isPQueueEmpty(): returns true if pqueue is empty otherwise false size(): Return the number of elements in P. smpty(): Return true if P is empty and false otherwise. insert(e): Insert a new element e into, P. ● min): Return a reference to an element of P with the smallest associated kex value (but do not remove it); an error condition occurs if the priority queue is empty. • removeMin(): Remove from P the element referenced by min(); an error condition occurs if the priority queue is empty. Example: The following table shows a series of operations and their effects on an initially empty priority queue P. Each element consists of an integer, which we assume to be sorted according to the natural ordering of the integers. Note that each call to min returns a reference to an entry in the queue, not the actual value. Although the "Priority. Queue" column shows the items in sorted order, the priority queus need not store elements in this order.

C++ Programming: From Problem Analysis to Program Design

8th Edition

ISBN:9781337102087

Author:D. S. Malik

Publisher:D. S. Malik

Chapter18: Stacks And Queues

Section: Chapter Questions

Problem 21SA

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