Arithmetic Mean
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| Language | Haskell |
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| Owner | tj.takei |
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| Visibility | Public |
import Control.Applicative
import Control.Arrow
import Control.Monad
import Data.List
import Data.Maybe
main :: IO ()
main = print =<< mean . map read . words <$> getLine
mean :: Fractional a => [a] -> a
mean = sum &&& genericLength >>> uncurry (/)
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