http://www.perlmonks.org?node_id=75281


in reply to (Golf) Ordered Combinations

I know that I'm bending the rules a little, but this does get below 50.

sub c{my$n=pop;--$n?map{my$c=$_;map$c.$_,c(@_,$n)}@_:@_}

Example:

print join " ", c qw(a b c 2); print "\n"; print join " ", c qw(0 1 4); print "\n";