Join 2M+ learners using our structured approach to master data structures and algorithms. Start your journey today.
Our structured approach helps you master DSA efficiently with industry-relevant content and personalized learning paths.
Follow our carefully curated roadmap that takes you from basics to advanced concepts systematically.
Code directly in your browser with our integrated coding environment and get instant feedback.
Learn together with a community of 2M+ programmers and get help when you're stuck.
Choose from our comprehensive courses designed to take you from beginner to interview-ready.
Master arrays, linked lists, stacks, queues and basic algorithms with 80+ problems.
180 must-solve problems covering all DSA concepts for interview preparation.
Advanced DSA + System Design + Interview strategies from top companies.
Free step-by-step tutorials covering every DSA concept you need to master.
Master array manipulation, two pointers, sliding window and string algorithms.
Learn singly, doubly linked lists and solve classic interview problems.
Master binary trees, BST, DFS, BFS and graph algorithms with visual explanations.
Stay updated with the latest concepts and interview patterns
Solve 500+ handpicked problems with real-time feedback and detailed explanations.
Complete the most important problems for interviews
Today's Problem
Merge Intervals
Practice problems organized by topics and difficulty levels
Code directly in browser with instant feedback and test cases
Practice with company-specific problem sets and mock interviews
Ace your technical interviews with our comprehensive preparation program.
Practice with real interview questions from top tech companies.
Learn to design scalable systems like Netflix, Twitter, and Uber.
Master the soft skills and behavioral questions that matter.
Join 2M+ learners helping each other succeed in their coding journey.
Get help when you're stuck and help others when you can.
Form study groups and learn together with peers at your level.
Join weekly live coding sessions and AMAs with industry experts
Connect with learners worldwide and build your professional network
From 150+ countries, learning together every day