[Haskell-cafe] Efficiency question

Henning Thielemann lemming at henning-thielemann.de
Wed May 30 08:46:44 EDT 2007

On Sun, 27 May 2007, Evil Bro wrote:

> I'm pretty new to Haskell, so forgive me if my question is due to my
> non-functional way of thinking...
> I have the following code:

Counting can be done elegantly by 'filter' and 'length':

length $ filter (>1) $ Monad.liftM2 gcd [2..1000] [2..1000]

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