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Re: Detecting transpositionsby Abigail-II (Bishop) |
| on Aug 08, 2003 at 09:32 UTC ( [id://282142]=note: print w/replies, xml ) | Need Help?? |
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Would it be possible for the product of $f ^ $s to contain a "1" and hence pollute your $_ string? Yes, but no. It could certainly be possible that the XORred string contains a character "1". But this is ok, the tr/\x00/1/c turns anything that is not "\x00" into a "1" anyway - after the tr, the string will only contain "\x00" and "1" characters. Abigail
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