I golfed a bit. :)
sequence <=< filterM (const [False ..])
On Thu, Oct 25, 2012 at 6:11 PM, dokondr <[email protected]> wrote:
>
> On Fri, Oct 26, 2012 Alex Stangl wrote:
>
>>
>> combos [] = [[]]
>> combos ([]:ls) = combos ls
>> combos ((h:t):ls) = map (h:) (combos ls) ++ combos (t:ls)
>>
>
> Excellent, thanks!
>
>
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