Presuming you don't care about the order, the following may be what you are after:

use strict;
use warnings;

for my $left (1 .. 4) {
    for my $right (0 .. $left -1) {
        printf "%05b\n", (1 << $left) | (1 << $right);
    }
}

[download]

Prints:

00011
00101
00110
01001
01010
01100
10001
10010
10100
11000

[download]
DWIM is Perl's answer to Gödel

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

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