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  1. fib = [1, 1] ++ (zipWith (+) fib (tail fib))
  2.  
  3. fibBoundEven = [x | x <- takeWhile (<= 4000000) fib, (mod x 2 == 0)]
  4.  
  5. main = do print (sum fibBoundEven)
Success #stdin #stdout 0.01s 3592KB
comments (?)
stdin 
Standard input is empty
stdout 
4613732
https://ideone.com/mOZDg
language:
Haskell (ghc 8.4.4)
created:
14 years ago
visibility:
public

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