1.1 How to Use This Book

• Browse by Data Structure: Navigate through chapters organized by fundamental data structures (arrays, trees, graphs, etc.)
• Search by Technique: Use the glossary to find problems by algorithmic technique (DFS, DP, two pointers, etc.)
• Practice Systematically: Work through problems in order of difficulty within each chapter
• Verify Solutions: All solutions have been tested on online coding platforms like LeetCode