push @x, pack "A*", qq[@$_] while $_=$i->next;
That would probably match if not beat join, if you weren't stringifying the array twice.
Ie. Use push @x, pack "(A*)*", @$_ while $_=$i->next;
Of course, if you want to put all the sequences as strings into an array, this is easier and probably quicker;
my @x = map join( '', @$_ ), variations_with_repetition( ["a".."z"], 4
print scalar @x;;
And if all you want to do is print the count, then:
[ 7:10:21.87] C:\test>perl -MAlgorithm::Combinatorics=:all -le"print s
+calar( () = variations_with_repetition( ["a".."z"], $ARGV ) )" 4
[ 7:10:27.12] C:\test>
BTW, that is one seriously quick machine you're running. What is it? (6x faster than my (admittedly ancient) box.
With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
In the absence of evidence, opinion is indistinguishable from prejudice.
Suck that fhit
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