Hrm.. sounds a bit like homework, but I will give you a start. (If I am wrong and not homework, I apologize), but anyhow the first thing that comes to mind is:

my @initial_array = ("A","B","C");

[download]
and a couple foreach loops. Though TMTOWTDI is sure to come into play.

Good Luck

enlil

In reply to Re: Combinations of a set of elements by Enlil
in thread Combinations of a set of elements by Anonymous Monk

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