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Learn to Code in 90 Days or Less.
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Programming competitions and contests, programming community.
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A computer science portal for geeks.
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Geektastic is a platform that manages peer reviewed code challenges supported by a community of qualified software engineers.
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py.CheckiO - Python practice online. Improve your coding skills by solving coding challenges and exercises online with your friends in a fun way. Exchanges experience with other users online through fun coding activities.
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Learning to code can be complicated, we make it simple.
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Improve your CSS skills with fun.
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URI Online Judge is a project developed for you! Our goal is to provide a platform where you can learn, practice and sharpen your skills in algorithms and programming languages.
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Find your challenge, be the next winner.
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The revolutionary online game that introduces children to computational thinking and professional coding languages.