Welcome to LightOJ


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Solve Problems

Solve various algorithmic problems on LightOJ. All the problems are categorized. Kick start problem solving from the warm-up problems.
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Host Contests and Participate

Participate in contests arranged by LightOJ and the community. And host contests without any fee(*) on LightOJ.
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Become Better Programmer

We will be introducing various new features which will help you to become a better programmer.