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From:
Alistair.McGlinchy
Date:
December 13, 2001 17:40
Subject:
Sorted Code
Message ID:
74EB97D91561D311A67D0001FA7E847704D2C35B@GBHEXCHGPRI0001
Hi All,
Using only ASCII chars " " to "~" excluding the "#" ie
@chars= map {chr} (32..34,36..126)
what is the longest piece of perl code $c which is "perl -c" correct with
the requirement that each character in $c is ord-less than the next one. ie
@sub_set= split//,$c;
@seen{@sub_set} = (1)x@sub_set;
$c eq join"",sort keys %seen;
A hand-generated example is
&'()-.0123456789>ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz{}
I'm off on holiday for the next week so I thought I'd leave my computer busy
while I was gone. I've written some horridly inefficent code to work this
out by brute force. However doubtless some of you will be able to beat my
computer's exhaustive search with some deeper insight into syntactically
correct code.
A second piece of fun:
What's the most useful piece of code you can write with this restriction?
[For very loose definitions of the work "useful"]
Cheers,
Alistair
> ----------------------------------------------------------------------
> Alistair McGlinchy, alistair.mcglinchy@marks-and-spencer.com
> Sizing and Performance, Central IT, ext. 5012, ph +44 20 7268-5012
> Marks and Spencer, 3 Longwalk Rd, Stockley Park, Uxbridge UB11 1AW, UK
>
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