Best Alternatives to LeetCode For Data Science

1

LeetCode

LeetCode is the platform where people practice their coding skills and prepare for software engineering interviews. It is the primary educational platform meant for the advanced-beginner to an intermediate engineer looking to brush up on their technical concepts. So can LeetCode be used for data science interviews? LeetCode is to help software engineers to get jobs. It wasn't designed to help prepare data scientists for their data science interviews or improve their analytical skills in SQL and python -- two tools that are required to become a successful data scientist.

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2

Mode

Mode.com is one of the valuable alternatives to LeetCode if you're looking for a basic and straightforward method to learn. However, Mode Analytics is somewhat limited in terms of offering the opportunity to grow and test your skills.

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3

StrataScratch

StrataScratch offers free data science interview questions and continues to release interview questions when they come out from companies. This ensures that you are always practicing your data science skills on questions that are currently appearing on data science interviews at various companies. StrataScratch is designed to be the ideal resource for preparing data science interviews and for advancing your career as a data scientist.

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4

Datacamp

Like StrataScratch, DataCamp mainly focuses on data science and offers many ways to test and practice data science skills. It offers not only many mini practice challenges but also extensive ways to test your skills. These problems are based on real-world scenarios. However, the number of projects and problems in certain subject matters is limited. But Overall, DataCamp is well-organized, intuitive, and subject area focused platform where you can test and improve your skills through various problems and projects.

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5

W3Schools

W3Schools, as one of the best alternatives to LeetCode, claims to be the world's largest web developer site. It's a simple and no-frills tool to learn web development skills including Python and SQL. Their methods and approach to learning work for many people. Their teaching method is simple and basic. The courses on W3Schools are outlined from simplest to most advanced concepts. Each page of concepts provides the description from syntax to important functions and keywords. So if you prefer to learn in a brief and clearly expressed manner, you will like their learning method. The best thing about W3Schools is that the entire course is available free without even registration.

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6

HackerRank

HackerRank is another valuable alternative to LeetCode. They're not very "niche" but I had to include them on this list because they're a great resource for data science practice. On HackerRank, you can learn and test your competitive programming skills. If you have basic knowledge of Python and SQL and you're looking to sharpen your skills for an interview, then this platform is for you. Similar to LeetCode, you have the ability to filter by topic and skill level.

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7

Guru99

Guru99 is a free online resource meant to teach you a variety of skills including SQL and Python. Their lessons are sorted from basics to more advanced concepts. Classes on Guru99 are either written or in video form.

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