DSA Handbook

Comprehensive guide with the top 75 DSA problems, solutions, and interview preparation strategies.

Download Options

📚 PDF Handbook: Complete guide with all problems, solutions, and study plan

💾 JSON Dataset: Structured data for custom tools and analysis

Introduction

This comprehensive DSA handbook contains the top 75 problems most frequently asked by FAANG and other leading tech companies. Each problem is carefully selected based on: • Interview frequency at top companies • Pattern importance for problem-solving skills • Educational value for building DSA intuition • Real-world applicability and variations The problems are organized by patterns to help you develop systematic problem-solving approaches that can be applied to similar problems during interviews.

How to Use This Handbook

1. **Start with Easy Problems**: Build confidence with fundamental patterns 2. **Master One Pattern at a Time**: Don't jump between patterns randomly 3. **Understand, Don't Memorize**: Focus on the underlying approach 4. **Practice Variations**: Each pattern has multiple problem types 5. **Time Yourself**: Practice under interview-like conditions 6. **Explain Out Loud**: Practice explaining your approach clearly

Interview Success Tips

  • Always clarify the problem and constraints before coding
  • Start with a brute force approach, then optimize
  • Discuss time and space complexity trade-offs
  • Test your solution with edge cases
  • Practice coding on a whiteboard or paper
  • Prepare follow-up questions and variations