Hey! Thats really elegant and instructive Abigail-II - but please forgive a stupid question... Would it be possible for the product of $f ^ $s to contain a "1" and hence pollute your $_ string?
"To be admired must be the constant aim of ambition."
- Johnson
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.