Coding Problems
Coding problems are exercises designed to test a programmer’s ability to write logic, solve challenges and apply algorithms or data structures. They help improve problem-solving skills, logical thinking and coding efficiency. Common in interviews and competitive programming, coding problems range from simple tasks to complex algorithmic challenges, preparing developers for real-world software development scenarios.
Top Coding Problems Articles
Sliding Window Algorithm : Beginners to Advanced Engineers
Sliding Window Algorithm, What is the Sliding Window Approach?, Why Use Sliding Window? Where to Use Sliding Window, How Sliding Window Works with Examples
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
Amazon Transaction Logs
Amazon Transaction Logs (example question), Amazon Transaction Logs Interview question
2 Sum - Pair Sum Closest to 0
2 Sum - Pair Sum Closest to 0 , Sum of two elements whose sum is closest to zero , array DSA problem, coding problem , DSA coding problem , DSA interview coding problem
2 Sum – Count Pairs with given Sum in Sorted Array
2 Sum – Count Pairs with given Sum in Sorted Array, two sum , Count pairs with given sum , 2 sum problem , array DSA problem, coding problem , DSA interview coding problem
2 Sum Count pairs with given sum
2 Sum – Count pairs with given sum, two sum , Count pairs with given sum , 2 sum problem , array DSA problem, coding problem , DSA interview coding problem
Two Sum - Pair with given Sum
Two Sum – Pair with given Sum , 2 sum problem , array DSA problem, coding problem , DSA coding problem , DSA interview coding problem
Container With Most Water
Container With Most Water | You are given an integer array height of length n. There are n vertical lines drawn such that the two endpoints of the ith line are (i, 0) and (i, height[i]). Find two lines that together with the x-axis form a container such that the container contains the most water.
Maximum Product of Three Numbers
Maximum product of a triplet (subsequence of size 3) in array | Maximum Product of Three Numbers | Given an integer array arr, find three numbers whose product is maximum and return the maximum product.
3 Sum : Find triplets that add up to a target value
3 Sum : Find triplets that add up to a target value, 3 sum problem , Triplet Sum in Array , Given an integer array nums, return all the triplets that add up to a target value
Popular Topics
PostgreSQLSoftware DesignC#SQLMethodLanguage-ConceptsInterviewArrayCoding ProblemsControl Flow
PostgreSQL is a free, open source relational database management system. It was initially developed as a successor of the Ingres database
Software design is the process of planning and structuring a software system’s architecture, components, interfaces, and data flow to meet functional and non-functional requirements. It ensures scalability, maintainability and performance. Key approaches include modular design, object-oriented design and architectural patterns like MVC and microservices for efficient, reliable software development.
C# (C-Sharp) is a modern, object-oriented programming language developed by Microsoft for building secure, scalable applications. It runs on the .NET platform and supports features like strong typing, garbage collection, LINQ, async programming and cross-platform development. C# is widely used for web, desktop, game development (Unity), cloud services and enterprise-level software solutions.
SQL stands for Structured query language. It is a programming language for storing and processing information in a relational database. It is standard language for accessing and manipulating databases.
A method is a block of code that performs a task.
This tag is used to understand a basic part of the language.
A structured conversation where one participant asks questions and the other provides answers of those questions.
An array is a linear data structure that stores multiple elements of the same type in contiguous memory locations. It allows fast access using index positions, making operations like retrieval efficient. Arrays are widely used for organizing data, implementing algorithms and building other data structures. However, their size is fixed, making resizing difficult compared to dynamic collections.
Coding problems are exercises designed to test a programmer’s ability to write logic, solve challenges and apply algorithms or data structures. They help improve problem-solving skills, logical thinking and coding efficiency. Common in interviews and competitive programming, coding problems range from simple tasks to complex algorithmic challenges, preparing developers for real-world software development scenarios.
Popular Articles
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
how to install docker on amazon ec2 instance. docker installation command on linux machine, docker commands, Commonly Used Docker Commands on EC2
install mysql by docker. docker mysql server installation. MySQL is one of the most popular open-source relational database management systems. Docker container is a great way to manage and deploy databases in a portable and isolated environment. In this article, we will walk through the steps by step to install and run MySQL in Docker.
Top 50 SQL Interview Questions and Answers (Beginner to Intermediate). Top SQL Interview Questions for fresher. Frequently asked SQL interview questions with answers
List Handling in Java vs C# vs C++ A Deep Comparison, This comparison provides a full view java , c# and c++ List like data structures
A Structured Approach to Cracking Technical Interviews. how to prepare for Technical Interviews? Technical Interviews preparation guideline
Static Class vs Singleton in C#: A Complete Deep Dive
Top High-Level Design(HLD) Interview Questions and answers, HLD QnA, HLD interview preparation
namespace in c# | namspace concept in c# | c# namespace | c sharp namespace | what is namesapce and it's use cases | why should we use namespace
Maximum Product Subarray, Find Maximum Product Subarray in an Array, Given an integer array arr, find a subarray that has the largest product,
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
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QR Code Generator
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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