>yep, I missed that part.
>
>On Apr 16, 2008, at 10:58 AM, Ian Skinner wrote:
>
>>
While digging around for some ruby articles, I came across this function:
def subn(n, list)
return [[]] if n == 0
return [] if list.empty?
remainder = list[1..-1]
subn(n-1, remainder).collect {|it| [list[0]] + it } + subn(n, remainder)
end
I was looking at that and thought.....I know this function from somewhere.
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