Priority queue: Priority queue is another type of queue in which each item contains “priority” related with it. The element with high priority dequeued earlier than the element with low priority. If two or more elements have same priority then, they are processed according to their order. The two main operations done on priority queue is “add ()” and “removeMin ()”. The operation “add ()” is used to add an element to the queue. The process of removing an element from the priority queue using the method “removeMin ()” will always returns the minimum element.

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Answer 1

Question

Chapter 21, Problem 4SA

Program Plan Intro

Priority queue:

Priority queue is another type of queue in which each item contains “priority” related with it.

The element with high priority dequeued earlier than the element with low priority.

If two or more elements have same priority then, they are processed according to their order.

The two main operations done on priority queue is “add ()” and “removeMin ()”.

The operation “add ()” is used to add an element to the queue.

The process of removing an element from the priority queue using the method “removeMin ()” will always returns the minimum element.

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What are the chief differences between these three data structures? How can you determine when it is appropriate to use a queue, a dequeue, or a priority queue?

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Answer 2

Question

Chapter 21, Problem 4SA

Program Plan Intro

Priority queue:

Priority queue is another type of queue in which each item contains “priority” related with it.

The element with high priority dequeued earlier than the element with low priority.

If two or more elements have same priority then, they are processed according to their order.

The two main operations done on priority queue is “add ()” and “removeMin ()”.

The operation “add ()” is used to add an element to the queue.

The process of removing an element from the priority queue using the method “removeMin ()” will always returns the minimum element.

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Answer 3

Question

Chapter 21, Problem 4SA

Program Plan Intro

Priority queue:

Priority queue is another type of queue in which each item contains “priority” related with it.

The element with high priority dequeued earlier than the element with low priority.

If two or more elements have same priority then, they are processed according to their order.

The two main operations done on priority queue is “add ()” and “removeMin ()”.

The operation “add ()” is used to add an element to the queue.

The process of removing an element from the priority queue using the method “removeMin ()” will always returns the minimum element.

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Answer 4

Question

Chapter 21, Problem 4SA

Program Plan Intro

Priority queue:

Priority queue is another type of queue in which each item contains “priority” related with it.

The element with high priority dequeued earlier than the element with low priority.

If two or more elements have same priority then, they are processed according to their order.

The two main operations done on priority queue is “add ()” and “removeMin ()”.

The operation “add ()” is used to add an element to the queue.

The process of removing an element from the priority queue using the method “removeMin ()” will always returns the minimum element.

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Answer 5

Chapter 21, Problem 4SA

Program Plan Intro

Priority queue:

Priority queue is another type of queue in which each item contains “priority” related with it.

The element with high priority dequeued earlier than the element with low priority.

If two or more elements have same priority then, they are processed according to their order.

The two main operations done on priority queue is “add ()” and “removeMin ()”.

The operation “add ()” is used to add an element to the queue.

The process of removing an element from the priority queue using the method “removeMin ()” will always returns the minimum element.

Answer 6

Chapter 21, Problem 4SA

Program Plan Intro

Priority queue:

Priority queue is another type of queue in which each item contains “priority” related with it.

The element with high priority dequeued earlier than the element with low priority.

If two or more elements have same priority then, they are processed according to their order.

The two main operations done on priority queue is “add ()” and “removeMin ()”.

The operation “add ()” is used to add an element to the queue.

The process of removing an element from the priority queue using the method “removeMin ()” will always returns the minimum element.

Answer 7

Chapter 21, Problem 4SA

Program Plan Intro

Priority queue:

Priority queue is another type of queue in which each item contains “priority” related with it.

The element with high priority dequeued earlier than the element with low priority.

If two or more elements have same priority then, they are processed according to their order.

The two main operations done on priority queue is “add ()” and “removeMin ()”.

The operation “add ()” is used to add an element to the queue.

The process of removing an element from the priority queue using the method “removeMin ()” will always returns the minimum element.

Answer 8

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Answer 9

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Answer 10

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Answer 11

Ch. 21.1 - Prob. 21.2CP Ch. 21.1 - Prob. 21.3CP Ch. 21 - Prob. 1MC Ch. 21 - Prob. 2MC Ch. 21 - Prob. 3MC Ch. 21 - Prob. 4MC Ch. 21 - Prob. 5MC Ch. 21 - Prob. 6MC Ch. 21 - Prob. 7MC Ch. 21 - Prob. 8MC

Solution Summary: The author explains that priority queue is a type of queue in which each item contains "priority" related with it. The two main operations are "add" and "removeMin".

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Chapter 21 Solutions