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  1. import Data.List
  2. main = print.map head.group $ [1,1,2,2,3,3,3,1]
Success #stdin #stdout 0s 8388607KB
comments (?)
stdin 
Standard input is empty
stdout 
[1,2,3,1]
https://ideone.com/JxtHSz
language:
Haskell (ghc 8.4.4)
created:
6 years ago
visibility:
public

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