Computer Science Illuminated
Computer Science Illuminated
7th Edition
ISBN: 9781284155617
Author: Nell Dale, John Lewis
Publisher: Jones & Bartlett Learning
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Chapter 8, Problem 1E
Program Description Answer

A suitable structure to simulate the teller operation in a bank application is “queue”.

Hence, the correct answer is option “B”.

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Explanation of Solution

Queue:

  • Queue is a type of container used to insert and remove an item according to first-in-first-out (FIFO) principle.
  • In queue, the items are entered at the rear end of the queue and removed from the front end of the queue.
  • A bank teller is an employee of a bank who directly deals with customers. These employees are placed or operate like a queuing system, which provides service to arriving customers in a first come first serve manner.
  • The two operations of queue are,
    • Enqueue – It is the operation to insert an item into the back of the queue.
    • Dequeue – It is the operation to remove an item from the front of the queue.

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