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  1. Online Coding Practice Problems & Challenges - CodeChef

    Practice over 5000+ problems and challenges in coding languages like Python, Java, JavaScript, C++, SQL and HTML. Start with beginner friendly challenges and solve hard problems as you become …

  2. LeetCode - The World's Leading Online Programming Learning Platform

    Over 4050 questions for you to practice. Come and join one of the largest tech communities with hundreds of thousands of active users and participate in our contests to challenge yourself and earn …

  3. Coding Practice: Problems & Challenges - Educative

    Welcome to Coding Practice! Over 1000+ challenges to choose from! From basic loops to advanced algorithmic puzzles, our coding challenges will give your coding practice an upgrade! Sharpen your …

  4. Programiz: Learn to Code for Free

    Learn to code in Python, C/C++, Java, and other popular programming languages with our easy to follow tutorials, examples, online compiler and references.

  5. Coding Games and Programming Challenges to Code Better

    CodinGame is a challenge-based training platform for programmers where you can play with the hottest programming topics. Solve games, code AI bots, learn from your peers, have fun.

  6. 10,000+ Coding Practice Challenges // Edabit

    Practice coding with fun, bite-sized challenges. Earn XP, unlock achievements and level up. It's like Duolingo for learning to code.

  7. Codewars - Achieve mastery through coding practice and …

    A coding practice website for all programming levels – Join a community of over 3 million developers and improve your coding skills in over 55 programming languages!

  8. Coding Practice | Coding Challenges - InterviewBit

    Level up your programming skills with our comprehensive guide containing interview questions, practice problems, coding challenges and alot more.

  9. Programming tutorials, Coding problems, and Practice questions

    Practice programming skills with tutorials and practice problems of Basic Programming, Data Structures, Algorithms, Math, Machine Learning, Python. HackerEarth is a global hub of 5M+ developers.

  10. Learn to Code — For Free — Coding Courses for Busy People

    freeCodeCamp is a community of people from all around the world who are learning to code together. We're a 501 (c) (3) public charity. How will freeCodeCamp help me learn to code? You will learn to …