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Master algorithms with personalized spaced repetition and pattern ladders. Track your LeetCode progress with smart analytics. Stop grinding LeetCode randomly. Start learning algorithms scientifically. CodeMaster is an intelligent learning assistant that transforms your algorithm practice into a personalized, retention-optimized system. Unlike traditional problem lists, CodeMaster uses proven cognitive science principles to ensure you actually master algorithms—not just solve them once and forget. 🧠 SMART SPACED REPETITION Never forget a pattern you've learned. Our Leitner-based system automatically schedules problem reviews at scientifically optimal intervals: • 5-Box Progression System: Problems advance through mastery levels (Daily → Every 3 days → Weekly → Monthly → Archived) • FSRS Algorithm Integration: Personalized forgetting curves adapt to YOUR individual learning pace • Intelligent Review Scheduling: Due problems surface automatically—no manual tracking needed • Decay-Aware Tracking: Problems you haven't seen in months get prioritized to refresh your memory Returns from a 2-year break? CodeMaster knows what you've forgotten and rebuilds your foundation efficiently. 📊 ADAPTIVE LEARNING ENGINE Your sessions evolve with your performance: • Dynamic Difficulty Adjustment: Problems get harder as you improve, easier when you struggle • Pattern Ladder System: Master algorithms progressively within each category (Arrays → Two Pointers → Sliding Window → Advanced) • Tag Mastery Tracking: See exactly which topics you've mastered and which need work across 50+ algorithm patterns • Multi-Factor Problem Selection: 9+ criteria analyzed to choose optimal next problems (mastery level, recent performance, learning velocity, weak areas) No more guessing which problem to do next. CodeMaster always knows. 🎯 SEAMLESS LEETCODE INTEGRATION Practice on LeetCode, track progress in CodeMaster: • Automatic Problem Capture: Click one button to log attempts—no manual data entry • Built-In Timer: Track time spent without switching tabs • Smart Hint System: 50+ algorithm-specific strategy guides with progressive hint disclosure • Content Script Overlay: Lightweight interface floats on LeetCode pages—zero friction Works on every LeetCode problem page. No account linking required. 📈 INSIGHTFUL ANALYTICS DASHBOARD Data-driven progress tracking that actually helps: • Tag Mastery Heatmaps: Visualize strengths and weaknesses across algorithm categories • Box Distribution Charts: See your retention pipeline at a glance • Session History Analytics: Accuracy trends, time-per-problem metrics, productivity insights • Learning Velocity Tracking: Measure improvement rate per topic • Pattern Coverage Reports: Ensure balanced topic exposure (70% ladder completion requirement) Turn vague "I should do more DP" into concrete "I'm 60% through DP Easy, 30% Medium—here's what to focus on." 🔒 PRIVACY-FIRST DESIGN Your learning data belongs to you: • 100% Local Storage: All data stays on your device via IndexedDB • Zero Cloud Dependencies: No servers, no accounts, no tracking • No Data Transmission: Extension never sends anything anywhere • Complete Control: Export, delete, or reset your data anytime We can't see your data because we never collect it. 🚀 PERFECT FOR Interview Prep: Spaced repetition ensures long-term retention, not short-term cramming Returning Users: Studied 4 months → Got job → Interviewing again 2 years later? Start where you left off with intelligent recalibration Structured Learners: Pattern ladders provide clear progression paths through algorithm topics Data Enthusiasts: Detailed analytics show exactly where your time is best spent Busy Professionals: Adaptive sessions optimize learning efficiency—no wasted time on topics you've mastered ⚡ KEY FEATURES AT A GLANCE ✅ Leitner spaced repetition with FSRS stability tracking ✅ Adaptive session generation based on real-time performance ✅ 50+ algorithm pattern categories with curated strategy guides ✅ Progressive hint system (pattern → strategy → optimization) ✅ Comprehensive analytics dashboard with Recharts visualizations ✅ LeetCode content script integration with timer ✅ Pattern ladder progression with difficulty scaling ✅ Tag mastery engine with decay score tracking ✅ Session history with productivity insights ✅ Focus area customization and learning goal setting ✅ Onboarding flow for new users ✅ Dark mode support 📚 SCIENCE-BACKED LEARNING Based on research-proven principles: • Spaced Repetition: Review at optimal intervals (Ebbinghaus forgetting curve) • Graduated Difficulty: Start easy, increase challenge as competence grows (Zone of Proximal Development) • Interleaved Practice: Mix topics to improve discrimination and retention • Retrieval Practice: Active recall strengthens memory more than re-reading solutions CodeMaster applies learning science to software engineering education. 🎓 WHO BENEFITS MOST • Students preparing for technical interviews at FAANG companies • Self-taught developers building algorithmic foundations • Bootcamp graduates strengthening computer science fundamentals • Professionals returning to interviewing after years in a role • Competitive programmers tracking practice systematically • Anyone tired of forgetting algorithms they've "learned" before Ready to stop forgetting and start mastering? Install CodeMaster and transform your algorithm practice from random grinding into systematic mastery.