Do you know any C# based "puzzles and answers" like book? Article? Resource? [closed]

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Do you know any C# based "puzzles and answers" like book? Article? Resource?

Why I am asking this is to enlarge my vision with some interesting quiz-like scenarios; to force myself think in a different way and which I can maybe have an advantage on unexpected interview questions.

Thanks!

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stackoverflow.com, of course :) - just reading the q and a on this site makes me think a different way.

Learning C# with exercises, questions and puzzles

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Although it's not specific to C#, Project Euler is a lot of fun.

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you can find a lot of solutions in c# to project Euler challenges. This is one resource: http://archive.msdn.microsoft.com/projecteuler

Also the benchmarks on The Computer Language Benchmarks Game have solutions in c# (mono). They encourage people to contribute faster solutions and by looking at them you can learn good performance-tuning tips.

Finally, if you're coming from another programming language and want to compare ways of solving common tasks, sites like Rosetta Code or langref are precious. They are also good to just learn how to do common things in a new language or as a reference (or indeed as preparation to common interview questions)

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A StackExchange site: Programming Puzzles & Code Golf