i changed a bit you code to : 
my $places = 6;
for my $left (1..$places-1) {
    for my $right (0 .. $left -1) {
        printf "%0$places"."b\n", (1 << $left) | (1 << $right);
    }
}

[download]
and saw it works only with 2 ones...

and what if i have 6 ones and 14 zeroes ? do i have to do 6 for() loops ???

In reply to Re^2: One Zero variants_without_repetition by thenetfreaker
in thread One Zero variants_without_repetition by thenetfreaker

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