#Stack implementation using linked list code

We will learn each function’s approach and algorithm one by one.

Approach and Algorithm of Stack using Linked List

Similarly, we will try to think of other stack operations and how we can implement these operations using a singly linked list.

If we can amend the inserting new node operation in a singly linked list in such a way that the current inserted element is always at the head of the linked list and is the first element accessible to us if we want to access an element from the linked list, then we can see that our linked list is mimicking the behavior of stack.

A Singly Linked List is a linear data structure containing nodes, and each node have a data part and a next pointer that points to the next node in the linked list.

Now, let’s recall what a Singly Linked List is.

Suppose we inserted elements in the stack in order 4,3,2,1, and now if we want to access elements from the stack, the order in which the elements will be accessible to us will be 1,2,3,4.

It follows the LIFO(last in first out) principle, i.e., the element inserted last in the stack will be the first one accessible to us if we access elements from the stack.

Understanding of the Stack Implementation using Linked List Where the head of the linked list is pointing to the 1. Output: If the input is 4 3 2 1, then our singly linked list, which will have all functionalities of a stack, will be We can implement the stack using Linked List. This implementation is more flexible as it can grow and shrink dynamically as elements are added and removed from the stack. The basic operations are performed by updating the links between the nodes in the linked list. The head of the Singly Linked List represents the top of the stack.

Stack Implementation using Linked list: In this approach, each element of the stack is represented as a node in a linked list.

The basic operations performed on a stack such as push, pop, and peek are implemented by adjusting the value of the top variable. The top of the stack is kept track of using a variable that points to the index of the topmost element.

Stack Implementation using Array: In this approach, an array is used to store the elements of the stack.

Stack ImplementationĪ stack in data structure can be implemented using an array or a linked list. These operations make it a useful data structure for various algorithms, such as maintaining function call history, evaluating mathematical expressions, and implementing undo-redo functionality in applications. Stacks are LIFO (Last In First Out) data structures, meaning that the last element added to the stack will be the first one to be removed.

size(): This method Returns the number of elements in the stack.isEmpty(): This method returns true if the stack is empty, otherwise false.peek(): This method returns the element at the top of the stack without removing it.pop(): This method removes an element from the top of the stack.push(): This method adds an element to the top of the stack.

The main operations performed on a stack data structure are: Operations performed on Stack in Data Structure Stacks are widely used in computer algorithms and programs for data manipulation, function calls, and expression evaluations. The operations performed on a stack include push, pop, and peek. The new element to be added is at the top of the stack. A stack stores elements in a sequential manner where elements are inserted (pushed) onto the top of the stack and removed (popped) from the top. Stack in Data Structure: IntroductionĪ stack is a linear data structure in computer science that operates on the Last-In-First-Out (LIFO) principle. In the last, we will discuss some of the applications of Stack in Data Structure. We will also enlist various advantages and disadvantages of implementation of Stack using Linked List. Either other, that, or rhs would be better names to describe the other stack.In this article, we will learn about what is stack and about various operations performed on Stack in Data Structure, stack implementation using linked list with the dry run of code.

#Stack implementation using linked list code

Reserve comments for stating intent, when you want to explain why something is being done and the code doesn't obviously state that intent. Programmers looking at the code should already know that they are constructors. I have tested my class that I wrote and everything seems to be working fine but I want to see if there are any bugs or some areas of the code I could improve on. I am now writing a stack data structure using linked list from scratch. At the moment I am learning about data structures.

I am a mathematician attempting to become proficient with C++.