When comparing CheckiO vs GeeksforGeeks, the Slant community recommends CheckiO for most people. In the question“What are the best coding challenge sites?” CheckiO is ranked 6th while GeeksforGeeks is ranked 13th. The most important reason people chose CheckiO is:
Users can publish their solutions for different problems and other users can review the code and give their opinions on how they would have solved the problem. Sometimes, some of the most active users get their code reviewed by Guido Van Rossum (the creator of the Python language) himself.
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Pros
Pro Community backed solution reviews
Users can publish their solutions for different problems and other users can review the code and give their opinions on how they would have solved the problem.
Sometimes, some of the most active users get their code reviewed by Guido Van Rossum (the creator of the Python language) himself.
Pro Available in multiple languages
CheckiO crowdsources translations for problems. Currently problems have been translated in 10 languages. So it's highly possible that eventually more languages will be supported.
Pro Ability to create new challenges
New missions can be created and uploaded using GitHub. After that is done, it's suggested to CheckiO and if it fills all the requirements after being reviewed by a CheckiO team member, it's pulled into the game.
Pro Challenges from GitHub, O'Reilly, Dropbox and Hubspot.
Pro Detailed articles for the most important challenges
GeeksForGeeks was founded to create a place for people who want to prepare for job interviews at big tech companies would have a place to prepare for these interviews.
The most important challenges and problems get articles published daily on how to solve them with detailed instructions and explanations on the approach taken for solving that particular problem.
Cons
Con Not for absolute beginners
CheckiO does not teach syntax, instead it teaches how to solve problems using a particular programming language therefore some basic programming knowledge is required to start.