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  1. listEven :: [a] -> Bool
  2. listEven [] = True
  3. listEven (_:xs) = listOdd xs
  4.  
  5. listOdd :: [a] -> Bool
  6. listOdd [] = False
  7. listOdd (_:xs) = listEven xs
  8.  
  9. main = do
  10.     putStrLn.show $ listEven [1,2,3]
  11.     putStrLn.show $ listOdd [1,2,3]
Success #stdin #stdout 0s 5676KB
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stdin
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Standard input is empty
stdout
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False
True
https://ideone.com/3AKuvK
language:
Haskell (ghc 8.4.4)
created:
12 years ago
visibility:
secret

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