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Medium

Use to define Level of Problem.

Top Medium Articles

Next Permutation find next lexicographically greater permutation
next permutation : find next lexicographically greater permutation. The next permutation of an array of integers is the next lexicographically greater permutation of its integer. Given an array Arr[] of integers, rearrange the numbers of the given array so that they form the lexicographically next larger permutation of numbers.
Remove Duplicates from Sorted Array II
Given a sorted integer array in ascending order , remove all duplicates from this array so that each unique element appears at most twise in this array. also maintain relative order of the elements in array.

Popular Topics

Popular Articles
How to Create a Class Library in .NET Core
Class Library in .net core. how to create class library in .net core. A class library is a project that contains reusable code such as functions, methods, and classes that can be shared across multiple applications. Class libraries encapsulate logic, making your codebase modular, maintainable and easier to test. step by step guideline for creating .net core class library.
DSA Interview Coding Problems
Top DSA interview question | DSA Interview Question | DSA interview questions and answers | Data Structures and Algorithms | Data Structure Interview question | top companies interview question | most frequently asked interview questions | DSA interview coding problems | topic wise interview questions
Top High-Level Design(HLD) Interview Questions 2025
Top High-Level Design(HLD) Interview Questions and answers, HLD QnA, HLD interview preparation
How to Approach HR Interview Questions
How to Approach HR Interview Questions , What to Keep in Mind While Answering HR Interview Questions, HR Interview Questions and Answers
Amazon Transaction Logs
Amazon Transaction Logs (example question), Amazon Transaction Logs Interview question
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
Collections in C#
Collections in c# | c# collections | type of collection in c# | collection classes and operations
How to Deploy a React App on an Amazon EC2 Instance
How to deploy a React application to an Amazon EC2 instance (Amazon Linux instance) using Nginx to serve the build files. We will also set up Node Version Manager (NVM) to manage Node.js versions on the EC2 machine and ensure proper directory permissions for smooth deployment.
Java Interview Questions and Answers Set 1
Prepare for your next tech interview with these top Java interview questions and expert answers. Boost your confidence and crack Java interviews.

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