If substring is a contiguous non-empty sequence of characters in the original, then a string of length 9 can have only 45 substrings. The defn that is apparently used in this puzzle would say that "foo" is a substring of "follow". That is a new one for me.
On Thu, Jan 10, 2013 at 11:05 AM, David Ward Lambert <[email protected] > wrote: > 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 <[email protected]> > >To: Programming forum <[email protected]> > >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 <[email protected]> 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 > > <[email protected]>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 <[email protected]> > > Message-ID: > > <CADHLgnnw2bMB5dQTQunPz2mA7v-**wV5uuVdRtb > > > > [email protected]> > > > > 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 > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
