Without looking at others solutions,

Here's the best i can come up with. It's got a hack or two, but it seems to test out correctly. *sigh*, i am learning from the TPR challenges that i am not very good at golf, but it's still fun :)

enjoy,
jynx

sub combinations {
#58+58=116
#23456789_123456789_123456789_123456789_123456789_123456789_
my@a;$;=@{$_[0]}**@_;while($a=pop){$==0;for$a((@$a)x($;>>(  
$b=@$a**@_)||1)){push@{$a[$=++]},$a for+1..$b}}@a[0..$;-1]
}

[download]
update: *sigh* back to the drawing board, the above version doesn't deal with multiple array lengths. The following does, but it's much longer...
sub attempt2 {
#66+65=131
#23456789_123456789_123456789_123456789_123456789_123456789_123456789_
my%a;$-=(@_=sort{@$b<=>@$a}@_);$;=1;map$;*=@$_,@_;while($a=pop){$=
=0;for$a((@$a)x($;/@$a)){push@{$a{$=++}},$a}}grep$-==@$_,values%a
}

[download]

In reply to Re: (GOLF) combine N arrays by jynx
in thread (GOLF) combine N arrays by suaveant

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