math is hard (to remember)
cabney
cabney at cyberpass.net
Thu Jul 12 23:00:07 CDT 2001
~sdpm~
On 12 Jul 2001, Randal L. Schwartz wrote:
> Here's one way that involves more recursion than iteration. I've come
> up with ways that involve more iteration than recursion too. :)
>
> my @list = qw(red orange yellow green blue);
> combo([], @list);
> sub combo {
> my $base = shift;
> if (@_) {
> my $first = shift;
> combo($base, @_);
> combo([@$base, $first], @_);
> } else {
> print "@$base\n" if @$base; # skip null set
> }
> }
Oh I like it... you don't have to look in the base if you are chewing
away at the list...
Thanks! :)
CA
--
There was a time
A wind that blew so young
For this could be the biggest sky
And I could have the faintest idea
~sdpm~
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