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  1. import Data.List
  2.  
  3. fibs = 1 : scanl' (+) 1 fibs
  4.  
  5. main = print . length . show $ fibs !! 1000000
Success #stdin #stdout 5.54s 8204KB
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stdin 
Standard input is empty
stdout 
208988
https://ideone.com/rhbrfr
language:
Haskell (ghc 8.4.4)
created:
4 years ago
visibility:
public

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