I would start by splitting the problem up
tupleSum :: [Int]-> (Int, Int)
tupleSum xs = (neg, pos)
where neg = ... SOME EXPRESSION INVOLVING xs
...
pos = sum [ x | x <- xs , x > 0]
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
> Sent: 03 August 2000 16:21
> To: [EMAIL PROTECTED]
> Subject: Query
>
>
>
> Hi,
>
> Would mind asnswring the following :
>
> Write a Haskell function tupleSum of type
>
> tupleSum :: [Int]-- (Int, Int)
>
> that given a list of integers:
>
> @separetes all negatives from the list and then add -1 to
> each element of this sub-list;
>
> @sum all elements of the list of negatives and sum all
> elements of the list of positives and return these in a tuple
>
>
> Thanking you in advance for your assistance
>
>
>
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