for $j ( 0 .. $#bits ) {
        $bits[$j] =~ s/1/x/;
        $bits[$j] =~ s/0/1/;
        $bits[$j] =~ s/x/0/;
    }

[download]

Or simply: 

    tr/01/10/ for @bits;

[download]

In reply to Re: An Useless Cipher by jwkrahn
in thread An Useless Cipher by Oromis92

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