(<'1234')([: *./ 1 = [: +/"1 =/)"1 &> '1234';'4321';'34213';'4132';'123' 1 1 0 1 0
On Fri, Sep 23, 2011 at 11:15 AM, Ian Clark <[email protected]> wrote: > I cheated... > > (-:/sort@":each) f. > -:/ /:~ :/:@":&.> > > > On Fri, Sep 23, 2011 at 1:37 PM, Johann Hibschman > <[email protected]> wrote: > > Why did you use (/:~ : /:) rather than just (/:~)? I'd forgotten about > > the monad/dyad use of (:), so it took me a little while to parse that. > > > > Ian Clark <[email protected]> writes: > > > >> Off-the-cuff... > >> > >> a=: 10123 > >> b=: 32110 > >> c=: 32100 > >> -:/ /:~ :/:@":&.> a,b > >> 1 > >> -:/ /:~ :/:@":&.> a,c > >> 0 > >> > >> > >> On Thu, Sep 22, 2011 at 10:41 PM, David Vaughan > >> <[email protected]> wrote: > >>> Hi, what is the best (fastest) way to check whether a number is a > permutation of another number? > >>> I've tried listing all permutations of one number and checking whether > the other number is in the list of permutations. This seems pretty slow, so > I was hoping for a faster method. > >>> > >>> Thanks. > >>> ---------------------------------------------------------------------- > >>> 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 > > > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > -- Devon McCormick, CFA ^me^ at acm. org is my preferred e-mail ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
