This definition of substring also conflicts with either the python implementation or the python documentation (the referenced activestate page is, after all, a "python recipe"):
from http://docs.python.org/release/2.7.3/library/string.html -- string.count(s, sub[, start[, end]])ΒΆ Return the number of (non-overlapping) occurrences of substring sub in string s[start:end]. And, trying an example in python: $ python >>> 'follow'.count('foo') 0 And it also conflicts with the results from the 'substring' operation in various languages which include a definition for one (basic, javascript, perl, ...) -- Raul On Thu, Jan 10, 2013 at 2:10 PM, Roger Hui <rogerhui.can...@gmail.com> wrote: > 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 <b49p23t...@stny.rr.com >> 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 <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 >> > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
