Stacks and Queues
Stacks and Queues: Overview
This topic covers concepts, such as Properties of Stacks, Types of Queues, Double-Ended Queues, FIFO - First In First Out, Implementation of Stacks, Characteristics of Circular Queue, Input-restricted Dequeue, Output-restricted Dequeue, etc.
Important Questions on Stacks and Queues
The term push and pop is related to

Which data structure follows the FIFO Principle.

FIFO stands for

void insert_front()
{ int added_item;
if((front == 0 && rear == Size-1) || (front == rear+1))
{ printf("Queue Overflow \n");
return; }
if (front == -1)/*If queue is initially empty*/
{ front = 0;
rear = 0; }
else
if(front== 0)
front=Size-1;
else
front=front-1;
printf("Input the element for adding in queue : ");
scanf("%d", &added_item);
deque_arr[front] = added_item ; }

For implementing deque, we need to keep track of two indices, front and rear.

For implementing deque, need to keep track of two ____, front and rear.

Select the Circular queue's characteristics

Which of the following is not an application of priority queue?

What data structure can a priority queue be implemented

Above image is of

What is the need for a circular queue

Time complexity of enqueue operation is

The term for inserting an element into a full queue is

Which of the following properties is with a queue?

Which application of stack is used to ensure that the pair of parentheses are properly nested?

Consider the usual algorithm for determining whether a sequence of parentheses is balanced. Suppose that you run the algorithm on a sequence that contains 2 left parentheses and 3 right parentheses (in some order). The maximum number of parentheses that appear on the stack AT ANY ONE TIME during the computation?

What is the value of the postfix expression 12 3 2 4 + – *?

Case:
If the stack size is 7.
The user is pushing the element.
Stack Pointer is at 6th location.
What will be the outcome??

Stack is a linear data structure which follows a particular order

Which among the below mentioned entities is/are essential for an Array Representation of a Queue?
