You should swap the first two numbers of your solution, since 2 is not adjacent
to 4.
It's more or less what I came up with, be it explicit.
;{.(3 :('''x y''=.y'; '(y-.t{y);~ x,({:x)-.~y{~t=.1 i.~ y e.~"1
{:x'))^:(#@>@{:) ({.;}.) edges
1 2 4 5 6 7 8 9 10 11 12 13 24 25 26 23 16 15 14 22 21 20 19 18 17 3 1
R.E. Boss
> -----Original Message-----
> From: Programming [mailto:programming-boun...@forums.jsoftware.com]
> On Behalf Of Raul Miller
> Sent: donderdag 25 augustus 2016 15:36
> To: Programming forum <programm...@jsoftware.com>
> Subject: Re: [Jprogramming] determine the cycle
>
> Oops, I represented the vertices incorrectly ({."1 would only be valid if the
> edges were directed).
>
> Here's a fix:
>
> ~., ((] , -. {~ {.@I.@(-. +./"1@e. {:@]))^:(<:@#@[) ,:@{.) edges
> 1 2 3 17 18 19 20 21 22 14 15 16 23 26 25 24 13 12 11 10 9 8 7 6 5 4
>
> This is the same core implementation, but this should show the actual
> vertices being traversed in the order they are encountered.
>
> Thanks,
>
> --
> Raul
>
>
> On Thu, Aug 25, 2016 at 8:36 AM, 'Jon Hough' via Programming
> <programm...@jsoftware.com> wrote:
> > Raul,
> >
> > your solution seems to miss out some vertices and duplicates others.
> >
> >
> > --------------------------------------------
> > On Thu, 8/25/16, Raul Miller <rauldmil...@gmail.com> wrote:
> >
> > Subject: Re: [Jprogramming] determine the cycle
> > To: "Programming forum" <programm...@jsoftware.com>
> > Date: Thursday, August 25, 2016, 9:07 PM
> >
> > Best I can come up with
> > is
> >
> > {."1
> > ((] , -. {~ {.@I.@(-. +./"1@e. {:@]))^:(<:@#@[) ,:@{.)
> > edges
> > 1 3 17 18 18 20 20 21 22 14 15 16 23
> > 26 25 13 12 11 11 10 9 7 6 5 4 2
> >
> > Change {.@I. to {:@I. if you want things
> > in the other order.
> >
> > --
> > Raul
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