nerd's blog

Regular expression
By nerd, 10 years ago, translation, In English

Hi there!

Is it necessary to know regular expressions in competitive programming? If yes, then is there any good tutorial?

Thanks

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10 years ago, # |
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No, you don't need to know them. If a problem is based on regular expressions, they'd have to be described in it in full detail.

You might only need them if you're doing IPSC.

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10 years ago, # |
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http://perldoc.perl.org/perlretut.html — it's short enough comparing with books. After reading this you will know where and how regexp will be useful. Anyway every programmer certainly should be familiar with regexps.

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10 years ago, # |
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Not necessarily but it can still be helpful. Once in a while there comes a problem that becomes a lot less tricky using regular expressions. Knowing it may not be required in order to solve a problem but it can make the solution less complicated.

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