Choosing the Right Book: Algorithms Unlocked or Introduction to Algorithms (CLRS)

When it comes to learning algorithms, the choice between algorithms unlocked and Introduction to Algorithms (CLRS) can be quite daunting. Thomas Cormen, co-author of CLRS, has offered some insights to help you decide which is right for you. Let's explore these recommendations and why they make sense.

Understanding the Differences

Algorithms Unlocked by Thomas Cormen

If you're looking for an intuition on how to design algorithms, what they are, and what you ideally want from them, Algorithms Unlocked is a great starting point. This book provides a casual introduction to the world of algorithms and is suitable for anyone with a basic understanding of programming. It does not require any knowledge of discrete mathematics and is ideal for complete beginners who want to get a feel for the subject. Think of this as a leisure read or a bedtime read.

Deep Dives with CLRS

On the other hand, Introduction to Algorithms (CLRS) by Thomas Cormen is a comprehensive textbook. It is more rigorous and requires a solid foundation in mathematics. If you're looking for a deeper understanding of algorithms and their mathematical precise analysis, then CLRS is the book for you. It covers a wide range of topics in depth and is suitable for those who already have a programming background and are familiar with basic data structures and algorithms.

The Recommendation

If you know some basic programming and are not familiar with fundamental concepts like sorting, searching, and basic data structures such as lists, stacks, queues, trees, and graphs, Algorithms Unlocked should be your first choice. This book will provide you with the basic intuition and knowledge to build a solid foundation.

However, if you are already proficient with elementary data structures and basic algorithms like sorting, searching, and have some exposure to concepts like depth-first search (DFS) and breadth-first search (BFS), then you might want to start with CLRS. Solving programming puzzles and coding challenges on platforms like SPOJ, HackerRank, and Codeforces can help you apply what you've learned and reinforce your understanding of the algorithms covered in CLRS.

Conclusion

The key is to not just read these books but to actively solve exercises and related problems. Reading CLRS like a novel will not be beneficial if you want to develop a deep understanding of algorithms. Algorithms Unlocked is perfect for beginners, while CLRS is an intensive resource that requires patience and dedication. Choose wisely, and happy learning!