Technical Interview Problems & Solutions

A comprehensive collection of technical interview problems with architectural thinking guides and complete solutions.

🎯 What Makes This Different?

This repository doesn't just provide solutions—it teaches you how to think architecturally:

• Deep Requirement Analysis: Learn to extract implicit requirements
• Data Modeling: Understand how to structure data
• Architecture Decisions: See the reasoning behind every choice
• Trade-off Analysis: Understand pros and cons of different approaches
• Step-by-Step Implementation: Build systematically, layer by layer
• Edge Case Analysis: Learn to think about what could go wrong
• Communication Strategies: Practice explaining your decisions

📚 Problem Categories

React & Frontend

• User Directory with Search & Filter - Beginner to Intermediate
• More coming soon...

JavaScript & TypeScript

• Coming soon...

System Design

• Coming soon...

Full Stack

• Coming soon...

🚀 How to Use This Repository

For Interview Preparation

1. Start with Learning Path to understand recommended order
2. Read Architectural Thinking Guide to develop the right mindset
3. Pick a problem from the appropriate difficulty level
4. Try solving it yourself first (30-60 min)
5. Review the architectural guide to understand the thinking process
6. Compare with the solution and learn from differences
7. Rebuild from scratch to solidify understanding

For Learning

1. Follow the implementation guides step-by-step
2. Type every line yourself (don't copy-paste)
3. Understand each decision before moving forward
4. Build variations to practice different approaches
5. Explain your code out loud to practice communication

For Teaching

• Use problems as teaching material
• Reference architectural guides to teach thinking process
• Assign problems as homework
• Use solutions as discussion starters

📖 Documentation

• How to Use This Repo
• Architectural Thinking Guide
• Interview Strategy Guide
• Learning Path

🤝 Contributing

We welcome contributions! Please see CONTRIBUTING.md for guidelines.

Ways to contribute:

• Add new problems
• Improve existing solutions
• Add alternative implementations
• Fix bugs or typos
• Improve documentation

📝 License

MIT License - feel free to use for learning and teaching.

🙏 Acknowledgments

Inspired by real technical interviews and the need for comprehensive preparation materials that teach thinking, not just coding.

⭐ Star This Repo

If you find this helpful, please star the repository to help others discover it!

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Happy Learning! 🚀