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DSA

DSA (Data Structures and Algorithms) is a fundamental concept in computer science that focuses on efficiently storing, organizing and processing data. Data structures like arrays, linked lists, stacks and trees manage data, while algorithms provide step-by-step solutions to problems. Mastering DSA is essential for writing optimized, scalable and high-performance code.

Top DSA Articles

What is Two Pointer Approach?
The two-pointer technique is a foundational pattern for solving array, string, and linked-list problems in linear (or near-linear) time with constant extra space
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
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,

Top DSA Blogs

Important Core Subject Concepts for Campus Placements
Master CS fundamentals for placements with OS, DBMS, CN, OOP, DSA, Java, Python, C++, interview questions, and preparation roadmap.
Adobe MTS-2 Interview Experience | DSA, System Design, DevOps & Hiring Manager Round
Adobe MTS-2 interview experience with DSA, system design, DevOps, DBMS, OS, OOP, hiring manager round, coding questions and preparation tips.
ServiceNow Associate Systems Engineer Interview Experience | DSA, Computer Networks & Operating Systems
ServiceNow Associate Systems Engineer interview experience with DSA, OS, Computer Networks, Word Ladder, Matrix Rotation, questions and tips.
Swiggy SDE (Backend Engineer) Interview Experience | Java, System Design, Automation Frameworks & SQL
Swiggy Backend Engineer interview experience covering Java, SQL, Selenium, Appium, system design, microservices, interview questions and tips.
Visa Software Engineer 1 (SDE-1) Interview Experience | CodeSignal OA + Graph-Based Technical Rounds
Ace your Visa SDE-1 interview with this complete interview experience covering CodeSignal OA, graph coding rounds, hiring manager questions and tips.
DSA Patterns for Coding Interviews: Complete LeetCode Roadmap (Beginner to Advanced)
Master every LeetCode pattern for coding interviews. Learn Arrays, Sliding Window, Graphs, Dynamic Programming, Trees, Heaps and more with 250+ curated problem
Maximum Productivity After Employee Rearrangement | Dynamic Programming Assignment Problem
Maximize team productivity after employee rearrangement using Dynamic Programming. Learn the key observation, DP state design, transitions, and O(N²) solution.
The Ultimate Guide to 16 Coding Interview Patterns Every Software Engineer Must Master
Master 16 coding interview patterns like Two Pointers, Sliding Window, DFS, BFS, DP, Graphs & more to solve problems faster in tech interviews.
Kotak Mahindra Bank SDE-1 Interview Experience : DSA, LLD, Kafka, PostgreSQL & Distributed Systems
Kotak Mahindra Bank SDE-1 Interview Experience with Java, Kafka, PostgreSQL, Distributed Systems, LLD, DSA & Backend Engineering Questions.
My Rupeek SDE 3 Round 1 Interview Experience
Detailed Rupeek SDE 3 interview experience covering Coin Change, Trapping Rain Water, Java debugging, DP optimization and interview insights.

Popular Topics

SQL
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.
C#
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.
Coding Interview
Coding Interview is a technical evaluation where candidates solve programming problems to demonstrate their problem-solving skills, data structure and algorithm knowledge and coding proficiency. It typically includes writing optimized code, explaining logic and analyzing time and space complexity to assess real-world programming ability.
Application Design
Application design is the process of planning and structuring an application’s architecture, user interface, data flow and functionality to meet user and business requirements. It involves decisions on technology stack, design patterns, scalability and security. Good application design ensures performance, maintainability and a seamless user experience across platforms and devices.
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.
Interview Experience
An interview experience is a detailed account of the interview process for a specific role, covering rounds, questions asked, difficulty level, preparation tips and personal insights to help future candidates understand what to expect and how to prepare effectively.
Database
A database is an organized collection of data. It is the collection of schemas, tables, queries, reports, views, and other objects. The data are typically organized to model aspects of reality in a way that supports processes requiring information. Use this tag if you have questions about designing a database.
Interview Preparation
Interview Preparation is the process of getting ready to perform confidently and effectively in a job interview. It includes researching the company, understanding the job role, practicing common interview questions, improving communication skills and reviewing technical or domain knowledge. Proper interview preparation increases confidence, reduces anxiety, and improves your chances of securing the job.
DSA
DSA (Data Structures and Algorithms) is a fundamental concept in computer science that focuses on efficiently storing, organizing and processing data. Data structures like arrays, linked lists, stacks and trees manage data, while algorithms provide step-by-step solutions to problems. Mastering DSA is essential for writing optimized, scalable and high-performance code.
Array
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.
Popular Articles
Learn how to create a primary key in SQL using syntax and examples. Ensure unique records, improve query performance and build table relationships.
Amazon Transaction Logs (example question), Amazon Transaction Logs Interview question
Mastering the Template Design Pattern in C#, Template Design Pattern in Depth: Structure, Use Cases and Best Practices
Static Class vs Singleton in C#: A Complete Deep Dive
How to Approach HR Interview Questions , What to Keep in Mind While Answering HR Interview Questions, HR Interview Questions and Answers
Maximum Product Subarray, Find Maximum Product Subarray in an Array, Given an integer array arr, find a subarray that has the largest product,
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
Mastering the Singleton Design Pattern in C#, Singleton Design Pattern in Depth: Structure, Use Cases and Best Practices, in depth design pattern, LLD , low level design
Length of the Longest Substring Without Repeating Characters | Given a string str find the length of the longest substring without repeating characters | find the length of the longest substring without repeating characters in a given string |

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