python coding contest
Claudio Grondi
claudio.grondi at freenet.de
Fri Dec 30 13:55:58 EST 2005
roberto.alsina at gmail.com wrote:
> Thomas Heller wrote:
>
>>X=' _ _ _ | _| _ |_|_ '
>>Y=0x23018F406A3530EC273F008
>>j="".join
>>seven_seg=lambda n:j(j(c)+"\n"for c in zip(*[X[Y>>m+int(d)*9&7::8]for d in n for m in(6,3,0)]))
>
>
> Interesting bit:
>
> Although there are more 3-char combinations when you read vertically,
> they compact better.
>
> If A=" ", B="_" and C="|", this 12 char string contains al possible
> combinations:
>
> BBBABAAACACC
>
> which is 2 chars shorter than the best for horizontal combinations:
>
> ABAAACBABCBCAC
>
> Still, I don't think this vertical idea can go below 123 or 124, but
> it's good :-)
>
> Now I wonder what the 119 solution is!
>
I suppose the known 120 solution twisted to work with a one byte shorter
string as you already found it out providing one example of it above,
right? :-)
Claudio
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