Alexander Kogan
Thanks! I did the following:
For extra credit, you can use a FiniteMap to store the words and counts. They have, as you probably know, log n access times, and should give you a substantial performance boost. :-) (I have a feeling FMs are slow when the keys are Strings - is it possible that a trie or other structure would be faster? Or using hashed keys, perhaps?)
But I wonder why the very useful function foldl' as I define it is not included into Prelude?
Me too - it's the main drawback going from Hugs to GHCi :-) I also wonder if there's any important uses for foldl where foldr or foldl' wouldn't be at least as good, but I'm sure somebody can come up with an example. -kzm -- If I haven't seen further, it is by standing in the footprints of giants