Assume you are using the text's array-based queue and have just instantiated a queue of capacity 10. You enqueue 5 elements and then deque elements. Which indices of the internal array elements hold the remaining elements? a) 0 to 2 b) 7 to 9 c) 2 to 4 d) 1 to 3

Full question:

Assume you are using the text's array-based queue and have just instantiated a queue of capacity 10. You enqueue 5 elements and then deque 2 elements. Which indices of the internal array elements hold the remaining elements? a) 0 to 2 b) 7 to 9 c) 2 to 4 d) 1 to 3

Answer and Explanation:

If you instantiate a capacity of 10 for the queue, you have the queue a capacity of not more than 10 values.

To enqueue means to add an element to the array(if it's not full, n<10)

To dequeue means to delete an element from the array or queue(if n! =0)

From the question, for example:

We create a queue of capacity 10:

Queue q(10);

We add elements/enqueue 5 elements to the queue :

q.queueEnqueue(10);

q.queueEnqueue(5);

q.queueEnqueue(8);

q.queueEnqueue(9);

q.queueEnqueue(2);

If we print this out:

q. queueDisplay()

We would get:

10, 5, 8, 9, 2

We remove elements/dequeue 2 elements from the queue :

q. queuedequeue();

q. queuedequeue();

We print it out:

q. queueDisplay()

8 ,9, 2

We observe that deletion/dequeue starts from the front/first index.

We are left with indices 2, 3, 4 or 2 to 4

Note: the above methods/ functions and objects used are merely for example purposes. The queue uses a floating front design approach.

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