The number of elements in an instance of Linked_Queue.tc is changed by functions push and __________.
A) empty
B) size
C) front
D) pop

Question

Quizplus · Accepted Answer

The push function adds an element to the queue, while the pop function removes an element from the queue. Both functions change the number of elements in the queue. Functions like empty and size check if the queue is empty and return the number of elements in the queue, respectively, without altering the number of elements. The front function returns the front element without removing it, thus not changing the number of elements.

The Number of Elements in an Instance of Linked_Queue