COMPUTER SCIENCE AND ENGINEERING
DATA STRUCTURES
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
an underflow error message will appear
|
|
|
an overflow error message will appear
|
|
|
an error message will appear
|
|
|
a queue is full error message will appear
|
Detailed explanation-1: -When a pop() operation is called on an empty queue, what is the condition called? Answer-B) pop() on an empty queue causes Underflow. 17.
Detailed explanation-2: -Dequeue Operation Step 1 − Check if the queue is empty. Step 2 − If the queue is empty, produce underflow error and exit. Step 3 − If the queue is not empty, access the data where front is pointing. Step 4 − Increment front pointer to point to the next available data element.
Detailed explanation-3: -Operations on Deque. Representation of Deque Using Circular Queue. View More. Deque is a data structure that inherits the properties of both queues and stacks. Additionally, the implementation of this data structure requires constant time, i.e., time complexity = O(1).
Detailed explanation-4: -Dequeue Operation Dequeue means removing an element from the queue. Since queue follows the FIFO principle we need to remove the element of the queue which was inserted at first.