(1) implement the following functions of a Queue using an integer array: • queue_init(): Make the queue empty empty(): return true if the queue is empty. Return otherwise • enqueue(val): add the item val to the queue • dequeue(): remove the item least recently added to the queue front(): return the item least recently added to the queue, but do not remove it. (ii) the program reads in integer values as input: for a positive integer input value greater than 0, the program will insert the value into the queue, i.e. enqueue • for any negative integer input value, the program will return the least recently added value from the queue if it is non-empty, i.e. front for the input value 0, the program will remove the least recently added

(1) implement the following functions of a Queue using an integer array: • queue_init(): Make the queue empty empty(): return true if the queue is empty. Return otherwise • enqueue(val): add the item val to the queue • dequeue(): remove the item least recently added to the queue front(): return the item least recently added to the queue, but do not remove it. (ii) the program reads in integer values as input: for a positive integer input value greater than 0, the program will insert the value into the queue, i.e. enqueue • for any negative integer input value, the program will return the least recently added value from the queue if it is non-empty, i.e. front for the input value 0, the program will remove the least recently added

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

Problem 1PE

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(1) implement the following functions of a Queue using an integer array:
• queue_init(): Make the queue empty
empty(): return true if the queue is empty. Return otherwise
• enqueue(val): add the item val to the queue
• dequeue(): remove the item least recently added to the queue
front(): return the item least recently added to the queue, but do not
remove it.
(ii) the program reads in integer values as input:
for a positive integer input value greater than 0, the program will insert
the value into the queue, i.e. enqueue
• for any negative integer input value, the program will return the least
recently added value from the queue if it is non-empty, i.e. front
for the input value 0, the program will remove the least recently added

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