Interesting.

Not sure how elegant this is, but it's easy if you compute the elements of your sets of numbers from last to first: 

for my $i (2..3) {
    local $/=",";
    for my $line (0..4**$i - 1) { # you were missing -1
        print "line $line - ";
        my $num=$line;
        my @tuple;
        for my $j (0..$i-1) {
            unshift @tuple, $num%4;
            $num/=4;
        }
        print "@tuple\n";
    }
}

[download]

Mike

In reply to Re: Incremental indexing exponential by RMGir
in thread Incremental indexing exponential by FFRANK

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