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  1. module Main where
  2.  
  3. findMe x list = findMeP list 1
  4.   where
  5.     findMeP [] _ = 0
  6.     findMeP (y:ys) n
  7.       | x == y    = n
  8.       | otherwise = findMeP ys (n + 1)
  9.  
  10. main :: IO ()
  11. main = do
  12.   print $ findMe 5 []
  13.   print $ findMe 5 [1..10]
  14.   print $ findMe 11 [1..10]
  15.  
Success #stdin #stdout 0s 4496KB
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https://ideone.com/qDJRPm
language:
Haskell (ghc 8.4.4)
created:
6 years ago
visibility:
public

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