in reply to
in thread lisperl
I guess you are using Perl 5.005 and not Perl 5.6...
This (poor) obfuscation makes use of the 0b form
which allows you (in Perl 5.6) to use binary numbers
as you use octal or hexadecimal ones.
I voted it --, because... well, I didn't have to run it
(I don't have Perl 5.6 installed here, anyway) to
clearly understand what it did.
Here is some Perl/Lisp, done by stefp, in the course
(setq A (if (boundp 'A) (+ 1 A) 1) ) ; $A++;
Not a tough nut to crack, but hey...