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author | HackBot |
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date | Sat, 01 Jun 2013 19:30:46 +0000 |
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import Data.List (sort, stripPrefix) main = mapM_ putStrLn . map (\s -> head s ++ " occurs->" ++ show (length s)) . group . sort . catMaybes . map (stripPrefix "username:" . (!!2) . words) . lines =<< getContents