DSA preparation in Python

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Learn Data Structures & Algorithms in Python with this complete coding interview prep app. Master complex programming concepts through clear lessons, an integrated Python compiler, a native mobile code editor, and interactive runnable code for every single concept.

Each topic pairs algorithmic theory with practical coding problems so you can apply what you learn straight away.

📚 What you will master
Arrays, strings, hashing, and two-pointer patterns
Linked lists, stacks, and queues
Trees, binary search trees (BST), heaps, and tries
Graphs with BFS, DFS, and shortest paths
Recursion, backtracking, and divide and conquer
Sorting, searching, greedy, and dynamic programming (DP)
Big-O time and space complexity for every approach

💻 Learn by doing
Each subtopic gives you clear theory, guided practice, and a quick summary, with syntax-highlighted Python code you can run on the spot inside the built-in online compiler. Browse a clean Subject to Topic to Subtopic map, search fast, and bookmark anything.

⚙️ Built-in Python runner & Code Editor
Write and execute code in the integrated editor, tackle coding problems with hidden test cases and reference solutions, and let the AI verify your output. The runner also supports Java, C++, C, Go, JavaScript, Rust, Kotlin, Dart, and Swift.

🧠 Quizzes and mock tests
Sharpen recall with multiple-choice quizzes that climb from Easy to Medium to Hard, each with a clear explanation. Take timed mock tests blending theory, MCQs, and coding, then read result analytics with targeted improvement tips.

🤖 Your AI tutor
Smart Mentor answers questions, explains lessons in plain English, runs a mock-interview mode, and even reads a photo of your code or a diagram. Get an AI-built 7-day study plan plus a daily revision card.

📊 Track your progress
Watch scores over time, study time, and topics completed, spot weak areas, hit daily goals, and keep your streak alive. Climb global and per-subject leaderboards.

🌐 Built for real life
Works offline, ships light and dark themes, and offers a multi-language interface (English, Hindi, Kannada, Tamil, and Telugu) that protects code and technical terms during translation.

Plans
Starter topics, daily practice, and limited AI help are included. A subscription unlocks all topics, every difficulty, unlimited practice, full quiz history, custom topic tests, and higher AI limits. Available as a 6-month prepaid plan or an auto-renewing monthly plan, each with a trial period.

Python and other language names and logos are trademarks of their respective owners. This app is independent and not affiliated with or endorsed by them.

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🎧 Listen to lessons — now with play/pause and adjustable speed; picks up right where you left off.

🃏 Flashcards + spaced repetition — revise any topic in a tap, sized for quick, focused sessions.

🚩 Report a diagram — spot something off in a figure? Flag it and we'll fix it fast.

🔔 Faster support — tap a reply notification to jump straight into your ticket.