[Haskell-cafe] A small puzzle: inTwain as function of foldr
ganesh.sittampalam at credit-suisse.com
Thu Jun 4 10:32:45 EDT 2009
Martijn van Steenbergen wrote:
> Consider the function inTwain that splits a list of even length
> evenly into two sublists:
> > inTwain "Hello world!"
> ("Hello ","world!")
> Is it possible to implement inTwain such that the recursion is done
> by one of the standard list folds?
Does this help? http://www.brics.dk/RS/02/12/BRICS-RS-02-12.pdf
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