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  1. open System
  2.  
  3. let folder state x =
  4.   match state with
  5.   | (zeros, others) ->
  6.     match x with
  7.     | 0 -> (0::zeros, others)
  8.     | n -> (zeros, n::others)
  9.  
  10. let zerosFirst xs =
  11.   match List.fold folder ([], []) xs with
  12.   | (zeros, others) -> List.append zeros others
  13.  
  14. let xs = [ 5; 0; 0; -4; 5; 0; 3; 3; 5; 0; -2; 0; 0 ]
  15. zerosFirst xs |> printfn "%A"
Success #stdin #stdout 0.19s 12872KB
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Standard input is empty
stdout
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[0; 0; 0; 0; 0; 0; -2; 5; 3; 3; 5; -4; 5]
https://ideone.com/r9UEvh
language:
F# (mono 4.1)
created:
9 years ago
visibility:
public

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