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  1. import Data.List
  2. import Control.Monad
  3.  
  4. liczby = do
  5.   t1 <- [1..9]
  6.   t2 <- [0..9]
  7.   t3 <- [0..9]
  8.   t4 <- [0..9]
  9.   t5 <- [0..9]
  10.   guard (length (nub [ t1, t2, t3, t4, t5 ]) == 3)
  11.   return 1
  12.  
  13.  
  14. main = print (length liczby)
Success #stdin #stdout 0.03s 6224KB
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https://ideone.com/v02Fj9
language:
Haskell (ghc 8.4.4)
created:
11 years ago
visibility:
secret

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