Question

Differentiate between a stack and a queue.

Answer 1

	Stack	Queue
1.	The stack is based on the LIFO (Last In First Out) principle.	The queue operates on the FIFO (First In, First Out) principle.
2.	Insertion Operation is called Push Operation.	The insertion operation is known as the Enqueue Operation.
3.	Deletion Operation is termed Pop Operation.	The deletion operation is known as the dequeue operation.
4.	Push and Pop operation occurs from one end of the stack.	Enqueue and dequeue. Operation occurs from a separate end of the line.
5.	The most accessible element is termed the Top, while the least accessible element is called the Bottom of the stack.	The insertion end is termed the Rear End, while the deletion end is called the Front End.
6.	Simple implementation	Compared to the stack, the implementation is more complex.
7.	Only one pointer is used to perform operations.	Two pointers are used to perform operations.
8.	Empty condition is checked using Top=-1	Empty condition is checked using Front=-1 | | Front=Rear+1.
9.	Full condition is checked using Top=Max-1.	Full condition is checked using Rear=Max-1.
10.	There are no variants available for stack.	There are three sorts of variants, including circular queue, double-ended queue, and priority queue.
11.	It can be regarded as a vertical collection of visuals.	Can be regarded a horizontal collection graphic.
12.	Used to overcome recursive-type difficulties.	Used to tackle problems with sequential processing.