I'd meant to post this yesterday evening! Happy Christmas...
I eventually went back to day 19 yesterday, 23rd, and solved part 1
after finally seeing why
all my predicted valid strings were only 15 or 16 chars long, when the
shortest messages
were 24 chars! Very verbose code compared to that of the K
aficionados. I still don't see
how to tackle part 2
I haven't get around to trying days 20 and onwards, but might have a
look at 21 23 & 24
in view of your (David's) remarks, come the weekend.
So only 37 Gold Stars, here!
Cheers,
Mike
On 24/12/2020 23:06, David Lambert wrote:
--- Day 19: Monster Messages ---
Part b: unsolved
--- Day 21: Allergen Assessment ---
No solutions.
--- Day 23: Crab Cups ---
Part b: implemented my brutish j model in c, which ran 5 hours on a
mainframe. Didn't bother to seek a pattern.
--- Day 24: Lobby Layout ---
Struggled with complex number comparisons until I thought to use integral
coordinates. Struggled with memory overfill and slow performance until I
had the insight that only the black tiles are required for the next day's
tile pattern.
I did not save my codes.
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