Representation of Stack Data Structure

What is Stack Data Structure?

Stack is a linear data structure based on LIFO(Last In First Out) principle in which the insertion of a new element and removal of an existing element takes place at the same end represented as the top of the stack....

Representation of Stack Data Structure:

Stack follows LIFO (Last In First Out) Principle so the element which is pushed last is popped first....

Types of Stack Data Structure:

Fixed Size Stack : As the name suggests, a fixed size stack has a fixed size and cannot grow or shrink dynamically. If the stack is full and an attempt is made to add an element to it, an overflow error occurs. If the stack is empty and an attempt is made to remove an element from it, an underflow error occurs. Dynamic Size Stack : A dynamic size stack can grow or shrink dynamically. When the stack is full, it automatically increases its size to accommodate the new element, and when the stack is empty, it decreases its size. This type of stack is implemented using a linked list, as it allows for easy resizing of the stack....

Basic Operations on Stack Data Structure:

In order to make manipulations in a stack, there are certain operations provided to us....

Implementation of Stack Data Structure:

The basic operations that can be performed on a stack include push, pop, and peek. There are two ways to implement a stack –...

Complexity Analysis of Operations on Stack Data Structure:

Operations Time Complexity Space Complexity push() O(1) O(1) pop() O(1) O(1) top() or peek() O(1) O(1) isEmpty() O(1) O(1) isFull() O(1) O(1)...

Advantages of Stack Data Structure:

Simplicity: Stacks are a simple and easy-to-understand data structure, making them suitable for a wide range of applications. Efficiency: Push and pop operations on a stack can be performed in constant time (O(1)) , providing efficient access to data. Last-in, First-out (LIFO): Stacks follow the LIFO principle, ensuring that the last element added to the stack is the first one removed. This behavior is useful in many scenarios, such as function calls and expression evaluation. Limited memory usage: Stacks only need to store the elements that have been pushed onto them, making them memory-efficient compared to other data structures....

Disadvantages of Stack Data Structure:

Limited access: Elements in a stack can only be accessed from the top, making it difficult to retrieve or modify elements in the middle of the stack. Potential for overflow: If more elements are pushed onto a stack than it can hold, an overflow error will occur, resulting in a loss of data. Not suitable for random access: Stack s do not allow for random access to elements, making them unsuitable for applications where elements need to be accessed in a specific order. Limited capacity: Stacks have a fixed capacity, which can be a limitation if the number of elements that need to be stored is unknown or highly variable....

Applications of Stack Data Structure:

Infix to Postfix /Prefix conversion Redo-undo features at many places like editors, photoshop. Forward and backward features in web browsers In Memory management, any modern computer uses a stack as the primary management for a running purpose. Each program that is running in a computer system has its own memory allocations. Stack also helps in implementing function call in computers. The last called function is always completed first....