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Stack

A stack is a linear data structure that follows the Last In, First Out (LIFO) principle. Elements are added (push) and removed (pop) from the top, making it ideal for tasks like expression evaluation, backtracking and function call management. Common implementations include arrays and linked lists for efficient data handling.

Top Stack Articles

Check if a Linked List is Palindrome
Palindrome Linked List | Check if a Linked List is Palindrome O(n) time and O(1) space | Fast & Slow Pointer Method with In-Place Second Half Reversal
Stack<T> Methods in C#
stack<T> methods in c# | c# stack methods | c# stack properties
Stack<T> in C#
genric stack in c# | stack in c# | last in firt out data structure | LIFO

Popular Topics

Git
Git is an open-source distributed version control system.
Git Commit
Git Commit
git branch
git branch is a command used to manage branches
Architecture
architecture
git pull
git pull is a command used to fetching changes form remote repo
Language-Concepts
This tag is used to understand a basic part of the language.
git commands
List of all git commands
GitHub
GitHub is a web-based hosting service for software development projects that use Git for version control.
Java
Java is a high-level object-oriented programming language. it's firstly released by Sun Microsystems in 1995. Use this tag when you're having queries using or understanding the language. This tag is also applicable to Java libraries and frameworks.
HashMap
A HashMap is a data structure that stores key-value pairs using hashing for fast access, insertion and deletion. Keys are unique and each maps to exactly one value. It offers average O(1) time complexity for basic operations and is widely used for efficient lookups, caching and data mapping in applications.
Popular Articles
Maximum Product Subarray
Maximum Product Subarray, Find Maximum Product Subarray in an Array, Given an integer array arr, find a subarray that has the largest product,
Primary Key in SQL
How to create Primary Key. Creating Primary Key syntax. A Primary Key is a database constraint that ensures uniqueness records in the table. Primary Key guarantees no two rows can have the same value in the primary key column(s). The Primary Key not only ensures uniqueness but also improves data access speed and is used to establish relationships between tables.
Merge Sorted Array
You are given two integer arrays arr1 and arr2, sorted in accending order, and two integers m and n, representing the number of elements in arr1 and arr2 respectively. Merge arr1 and arr2 into a single array sorted in accending order.
How to Install and Run Docker on Amazon EC2 by yum
how to install docker on amazon ec2 instance. docker installation command on linux machine, docker commands, Commonly Used Docker Commands on EC2
Rotate an array of n elements to the right by k steps
Rotate an array of n elements to the right by k steps | right rotate the elements of an array | array rotate | rotate array by k step
do while loop in C#
do while loop in c# | c sharp do while loop | exit control loop in c#
Find the maximum subarray sum
Find the Maximum Subarray Sum | Largest Sum Contiguous Subarray | Kadane’s Algorithm | Maximum Subarray | Given an integer array nums, find the subarray with the largest sum and return its sum | The Efficient Way to Find Maximum Subarray Sum
Amazon Transaction Logs
Amazon Transaction Logs (example question), Amazon Transaction Logs Interview question
Java Integer.MIN_VALUE
Integer.MIN_VALUE is a fundamental constant which denotes the smallest possible value that can be stored in an integer data type. It is defined under Integer class of Java.lang package
Mastering the Template Design Pattern in C#
Mastering the Template Design Pattern in C#, Template Design Pattern in Depth: Structure, Use Cases and Best Practices

Most Popular Tools

Explore our top online tools including a blank page for notes, a QR code generator, word counter and collaborative editor. These free, easy-to-use utilities help you write, analyze, share and organize content faster. Perfect for developers, creators and students to streamline everyday digital tasks efficiently.

Blank Page

Create a blank canvas for your ideas, notes or sketches. Use this tool for rough work and jotting down your thoughts

QR Code Generator

A QR Code Generator is a tool that instantly converts text, URLs or other data into a scannable QR code. Users can create custom QR codes for websites, contact info or messages. It's commonly used for quick access, sharing and printing without needing a backend or complex setup.

Word Counter

Perform various string operations like counting characters, words or letters.

Collaborative Editor

Collab Editor is a powerful, free-to-use online platform that lets you collaborate in real-time. Whether you re working on documents, brainstorming idea, or discussing projects etc