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  1. a = [1..50]
  2. b = [1..]
  3.  
  4. each _ [] = []
  5. each n (x:xs) = x: (each n $ drop (n - 1) xs)
  6.  
  7. main = do 
  8.         print $ each 4 a
  9.         print $ take 10 $ each 4 b
Success #stdin #stdout 0.02s 3592KB
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Standard input is empty
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[1,5,9,13,17,21,25,29,33,37,41,45,49]
[1,5,9,13,17,21,25,29,33,37]
https://ideone.com/R9KFE1
language:
Haskell (ghc 8.4.4)
created:
13 years ago
visibility:
public

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