All I could get is to use permutations and concatMap. But it looks really ugly.
On Fri, Mar 12, 2010 at 2:09 PM, Casey Hawthorne <cas...@istar.ca> wrote: > This sounds like homework. > > Think in abstract terms what you want to accomplish. > > Start with the simplest case first, usually the base case. > > > On Fri, 12 Mar 2010 14:02:02 +0800, you wrote: > >>Hi, >> For example, I have this: >>list1 = [a, b, c] >>list2 = [d, e, f] >>list3 = [g, h, i] >> Now I want: >>[ [(a, d, g), (b, e, h), (c, f, i)] >>, ... ] -- a list that contains all the combinations. >> How to do it pretty? Thanks. > -- > Regards, > Casey > _______________________________________________ > Haskell-Cafe mailing list > Haskell-Cafe@haskell.org > http://www.haskell.org/mailman/listinfo/haskell-cafe > -- 竹密岂妨流水过 山高哪阻野云飞 _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
