Apparently. :-)

Golf: (just the most obvious things)

perl -pe's!(\d)(\d)(\d)/!chr(64+$1*16+$2*4+$3)!ge' codedata

Know thine commandline switches.

Update: Doh, tilly was a few minutes faster.

Update 2: Slightly longer but I like this better:

perl -pe's!(\d..)/!$x=1;($x*=4)+=$_ for split//,$1;chr$x!ge' codedata

Update 3: Thanks to tadman:

perl -pe's!(\d..)/!$x=1;($x*=4)+=$_ for$1=~/./g;chr$x!ge' codedata

Makeshifts last the longest.

In reply to Re: Canadian Cryptography Contest by Aristotle
in thread Canadian Cryptography Contest by jryan

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