Code Patterns vs AlgoCards

**Transform Your Coding Skills** Turn complex algorithms into digestible, interactive challenges. Whether you're preparing for technical interviews or strengthening your programming foundation, CodePatterns makes mastering algorithms engaging and effective. **Real-Time Battle Mode** Challenge AI opponents in thrilling coding battles! Test your algorithmic knowledge under pressure with our unique real-time competition system featuring realistic opponents with varying skill levels. **Smart Learning System** - **Adaptive Retry System**: Focus on questions you've missed until you master them - **Progress Tracking**: Detailed analytics show your improvement over time - **Achievement System**: Unlock badges as you progress through different categories - **Personalized Recommendations**: AI-driven suggestions based on your performance **Comprehensive Algorithm Coverage** - Arrays & Hashing - Two Pointers & Sliding Window - Stacks & Queues - Binary Search & Trees - Dynamic Programming - Graphs & Advanced Algorithms - Time & Space Complexity Analysis **Gamified Experience** - Level progression system - Daily streak tracking - Points and XP rewards - Competitive leaderboards - Achievement badges **Beautiful, Intuitive Design** Clean, minimalist interface focused on learning. Optimized for both iPhone and iPad with seamless navigation and engaging animations. **Perfect for:** - Computer Science students - Software engineering interview prep - Coding bootcamp graduates - Professional developers looking to sharpen skills - Anyone passionate about algorithmic thinking Start your journey to algorithmic mastery today! Terms of Use: https://kevli1004.github.io/CodePatterns/terms_of_service.html

Master coding interviews with 390 problems, company-specific prep lists, and spaced repetition — completely free. The only app with dedicated trading firm and quant interview prep. Practice the exact problems asked at Google, Meta, Amazon, Citadel, Jane Street, Two Sigma, Goldman Sachs, and 20+ more companies. WHAT'S INSIDE: - 390 curated problems with detailed Python solutions - Company-specific problem lists for 30+ companies - SM-2 spaced repetition for optimal review scheduling - Flashcard mode for on-the-go review - Algorithm pattern cheat sheets with code templates - Weakness detection that adapts to your performance COMPANY-SPECIFIC PREP: Filter problems by company and see what they actually ask. Coverage includes: Trading Firms: Citadel, Citadel Securities, Jane Street, Two Sigma, Jump Trading, Hudson River Trading, IMC, DE Shaw, SIG, Virtu, Point72, Millennium FAANG & Big Tech: Google, Meta, Amazon, Apple, Microsoft, Netflix, Uber, Airbnb, LinkedIn, Stripe, TikTok, Databricks, Nvidia, OpenAI, Palantir, and more ALGORITHM PATTERNS: - Arrays & Hashing - Two Pointers & Sliding Window - Binary Search - Stack & Queue - Linked Lists - Trees & Tries - Graphs & BFS/DFS - Dynamic Programming - Greedy - Heaps & Priority Queues - Backtracking SMART REVIEW SYSTEM: 1. Study problems in flashcard or detail mode 2. Rate your confidence after each problem 3. AlgoCards schedules your next review at the scientifically optimal interval 4. Weakness detection identifies your weak patterns and prioritizes them 5. Build lasting pattern recognition, not temporary memorization WHO IT'S FOR: - Software engineers prepping for FAANG and Big Tech - Quant developers targeting trading firms - CS students preparing for internship interviews - Career switchers learning algorithms and data structures 100% FREE. No paywall. No ads. No subscriptions. Every problem, every solution, every feature. Download AlgoCards and prep smarter.