Here's my uber-inelegant serialized approach... If you don't care about the order that every combination is created: (btw, I renamed @array to be @arrays)...
my ($carry, @tallykeeper) = map 0, @arrays, 0; #gets rid of warnings..
+. w/strictures
while (!$carry) {
$carry = 1;
for my $dx (0 .. $#arrays ) {
print $arrays[$dx]->[$tallykeeper[$dx]];
$tallykeeper[$dx] += $carry;
if ($tallykeeper[$dx] < @{$arrays[$dx]}) {
$carry = 0;
}else{
$tallykeeper[$dx] = 0;
}
}
print "\n";
}
OR if you MUST have it in that order you could reverse the order of your array lists, or with my solution use this solution:
my ($carry, @tallykeeper) = map 0, @arrays, 0; #gets rid of warnings..
+.
while (!$carry) {
$carry = 1;
my $combostr = "";
for my $dx (reverse 0 .. $#arrays ) {
$combostr .= $arrays[$dx]->[$tallykeeper[$dx]];
$tallykeeper[$dx] += $carry;
if ($tallykeeper[$dx] < @{$arrays[$dx]}) {
$carry = 0;
}else{
$tallykeeper[$dx] = 0;
}
}
$combostr = reverse $combostr;
print "$combostr\n";
}
Okay mine are ultra lame... but it was fun to try to make a generic solution that worked for everything possible array of arrays...
--Ray
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