Consider the following representation of a queue ADT that is implemented using an array data structure: Queue front rear 3 8204 0 1 2 3 4 5 Write the required C++ computer program instructions for the following functions: a) printNext()- which displays the next element in the Queue to be processed b) enqueueAt(data, position) - which insert data at location position in the Queue c) dequeueFrom(position) - which removes the Queue's element from location position, and ensures that all elements in the queue are adjacent (i.e. there are no gaps between elements in the queue) d) howMany(data) - which searches the Queue for data, and then returns the amount of elements in front of data before it is processed 6

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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Consider the following representation of a queue ADT that is implemented using an array
data structure:
Queue
front
rear
63
38
20
04
0 1
2 3 4
5
Write the required C++ computer program instructions for the following functions:
a) printNext() - which displays the next element in the Queue to be processed
b) enqueueAt(data, position) - which insert data at location position in the Queue
c) dequeueFrom(position) - which removes the Queue's element from location position,
and ensures that all elements in the queue are adjacent (i.e. there are no gaps
between elements in the queue)
d) howMany(data) - which searches the Queue for data, and then returns the amount of
elements in front of data before it is processed
Transcribed Image Text:Consider the following representation of a queue ADT that is implemented using an array data structure: Queue front rear 63 38 20 04 0 1 2 3 4 5 Write the required C++ computer program instructions for the following functions: a) printNext() - which displays the next element in the Queue to be processed b) enqueueAt(data, position) - which insert data at location position in the Queue c) dequeueFrom(position) - which removes the Queue's element from location position, and ensures that all elements in the queue are adjacent (i.e. there are no gaps between elements in the queue) d) howMany(data) - which searches the Queue for data, and then returns the amount of elements in front of data before it is processed
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