Submission #187315

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Source Code Expand

main = do
  n <- readLn
  print $ if n == 12 then "1" else n+1

Submission Info

Compile Error

Main.hs:3:19:
    No instance for (Num [Char])
      arising from the literal `12'
    Possible fix: add an instance declaration for (Num [Char])
    In the second argument of `(==)', namely `12'
    In the expression: n == 12
    In the second argument of `($)', namely
      `if n == 12 then "1" else n + 1'