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May 2008

Why couldn't the problem use Perl-style regular expressions?
Those are so much better! laughing

What's up with character classes not working?
I guess I'll have to live with doing [0-9] instead of \d, but why must I do [A-Fa-f0-9] instead of [:xdigit:]? I thought POSIX regular expressions included this feature!

Sigh... Has anyone found a definitive documentation on allowed regex syntax for this problem? I hate using the online judge as a tester - 256 submissions might not be that many after all.

Never mind, angrydigit: works, accidentally made another change which I didn't notice confused

Still kind of annoying to have to guess the syntax though...