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Re^2: The golf course looks great, my swing feels good, I like my chances (Part I)

by eyepopslikeamosquito (Chancellor)
on Jul 24, 2010 at 07:13 UTC ( #851128=note: print w/replies, xml ) Need Help??

in reply to Re: The golf course looks great, my swing feels good, I like my chances (Part I)
in thread The golf course looks great, my swing feels good, I like my chances (Part I)

I just noticed a very similar Roman numeral golf recently concluded at Adjusting ySas' winning Perl solution to that game for this one produces this 58 stroker:

which has a similar form to robin's early-lead 60 stroker above -- though it uses a different algorithm. Both these solutions are very beautiful, very Perlish, and quite astonishing (at least to me).

I especially enjoyed ySas' ingenious use of @- above. I've never seen @- used like that in golf before and am tempted to give it a name, "ySas' device". By way of explanation, note that adding parentheses around (M) above adds one more element to the @- array when the (parenthesized) M matches. That is, the number of items in @- is used to differentiate between a matching M (two items in @-) and a matching D (one item in @-); this fits like a glove here because one and two happen to be the required multipliers.

Update: By applying ideas from ySas' solution, we can reduce Robin's original 60-stroker:

y/DCLXVIM /4 DCLX9/,$\=s/( )?\d/9x($&+!$1)/egfor(<>)x4;print
to 58:

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[Tanktalus]: SwaJime: wouldn't status & status < 13 be true if status was 0?
[SwaJime]: I thought 0 was false, and false AND anything would be false ...
[SwaJime]: unless & is higher precedence than <
[SwaJime]: couldn't find bitwise in precedence list for sybase
[SwaJime]: I bet that is why ... and that makes it to be I think terribly written code :-|

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