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Chapter 18: Problem 9

When an element is removed from a queue, where is it removed from?

Short Answer

Expert verified
Answer: An element is removed from the front of the queue when using the dequeue operation.

Step by step solution

01

Introduction to Queues

A queue is a data structure that stores elements in a linear format, following the First-In-First-Out (FIFO) order. This means that the element inserted first in the queue will be the first one to be removed, and so on.
02

Basic Operations in a Queue

There are two primary operations in a queue: enqueue and dequeue. - Enqueue: This operation adds an element at the end (rear) of the queue. - Dequeue: This operation removes an element from the front of the queue.
03

Element Removal in Queue

When an element is removed from a queue using the dequeue operation, it is removed from the front of the queue. In a FIFO order, the element that has been in the queue the longest will be removed.

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Most popular questions from this chapter

What does FIFO mean?

What is the difference between a static stack and a dynamic stack?

Suppose the following operations are performed on an empty queue: enqueue (5) enqueue (7) dequeue () enqueue (9) enqueue (12) dequeue () enqueue (10) Insert numbers in the following diagram to show what will be stored in the static queue after the operations have executed.

What two queue-like containers does the STL offer?

The STL stack is considered a container adapter. What does that mean?
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