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Thursday, June 4, 2015

Haskell 99 Problem 18


Please find the problem here.


Please see the solution as follow:

Fixed my laziness problem - now I output different error messages - in this case I sort of have to. This make me ponder one thing - is the parameter name of a function part of the signature that the caller can see? Does q < r some message that the user can make sense of?

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