NB. The palindromes needn't be unique # (#~(-:|.)&>) 'abccdadba'<@:#"1~ }. #: i.2^9 50
NB. I think the number of substrings is this: 1 2 3 4 5 6 7 8 9 mp 9 8 7 6 5 4 3 2 1 165 (mp |.)@:>:i.9 165 >Date: Thu, 10 Jan 2013 10:39:39 -0800 >From: Roger Hui <rogerhui.can...@gmail.com> >To: Programming forum <programm...@jsoftware.com> >Subject: Re: [Jprogramming] Contests & Hackatons >Message-ID: ><camz_i_a_by01mnogsnbdffqgze+2hmcxtxlctz5q3wg3hhr...@mail.gmail.com> >Content-Type: text/plain; charset=UTF-8 > > $ ~. (#~(-:|.)&>) 'abccdadba'<@:#"1~ }. #: i.2^9 >29 > >The description says there are 50 palindromes in the example so something >isn't right. > > > >On Thu, Jan 10, 2013 at 10:17 AM, Aai <agroeneveld...@gmail.com> wrote: > > Here's a BF solution > > ~. (#~(-:|.)&>) 'abccdadba'<@:#"1~ }. #: i.2^9 > > > On 10-01-13 18:53, Roger Hui wrote: > > http://code.activestate.com/**recipes/577010-palindrome-**count/<http://code.activestate.com/recipes/577010-palindrome-count/>says: > > 'abccdadba' contains 50 palindromes, not all unique. Examples are: 'a' at > positions 0,-4, and -1. 'aa' at (0,4),(5,-1), and (5,-1) The longest is > 'abdadba' This code counts the palindromes in the data variable. > > Since the string has 9 the number of substrings is only 45 (+/\1+i.9). > Therefore, I don't understand what the description means by "palindrome" > or "in the data variable". > > On Thu, Jan 10, 2013 at 9:38 AM, David Ward Lambert > <b49p23t...@stny.rr.com>wrote: > > The Kurukshetra contest is fun and soon. The university sponsors > several contests, this one fits me best. > > http://kurukshetra.org.in/#!/**events/athena<http://kurukshetra.org.in/#!/events/athena> > > Of course the winners finish just about all the problems before I even > start, but they did ask me to publish one of my solutions. It's in > python, my j skills were insufficient then: > > http://code.activestate.com/**recipes/577010-palindrome-**count/<http://code.activestate.com/recipes/577010-palindrome-count/> > > Athena! > > > We are back again with Athena ? the ultimate math-coding contest of > Kurukshetra'13 which tests your prowess at solving mathematical problems > using your coding skills. Are you a programmer who is fine with math > conceptually, but just don't like doing calculations by hand? But are > you skilled to tell a computer what the math problem is and make it do > the calculations for you? The event will be a spectacle with amateurs > locking horns with geniuses and getting all those guns blazing to make > one final stand against a looming cloud of impossibility! Gear up for > this ultimate battle of your computational and programming skills. > > Event Starts on 26th January 2013. > Date: Wed, 9 Jan 2013 13:22:50 +0000 > From: Y-01 <darling.ki...@gmail.com> > Message-ID: > <CADHLgnnw2bMB5dQTQunPz2mA7v-**wV5uuVdRtb > > +oauy=s8hz...@mail.gmail.com> > > Who knows another sites where you can learn J in practice of solving > problems? Mb serious problems, mb parts of work in J. Anything but in > > J. > Met vriendelijke groet, > @@i = Arie Groeneveld ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
