I recently posed a similar question (see [0]),
> This trident can be used to operate on raw noun arguments. One can
define first a noun boxing adverb,
>
>box=. ((<,'<') ; ])hg
> assert (<1 2 3) -: 1 2 3 box
>
> (Incidentally, I realize I am using a shotgun to kill a fly, I know I can
eas
Sure, but that hard part doesn’t use anything
we wouldn’t need in the solving routine.
(using the approach to both problems I sketched)
Am 14.10.21 um 20:17 schrieb Devon McCormick:
So, you're saying that converting a solved Sudoku into a real Sudoku puzzle
is the hard part, i.e. may require mor
Hi all,
I found a use for tacit trains today: making circle verbs with a sensible
obverse:
oi =: (& :. ({{-m}} & ].)) o.
1 oi
1&o. :.(_1&o.)
Nice, but I have a question:
How does one make the {{-m}} part tacit? Or more general, how to make verbs
operate on nouns and use their results in a
So, you're saying that converting a solved Sudoku into a real Sudoku puzzle
is the hard part, i.e. may require more than 3 lines of J?
On Thu, Oct 14, 2021 at 12:20 PM Hauke Rehr wrote:
> Depends on the norm :)
>
> You need to do just as difficult to perform steps:
> trying to derive the next nu
Depends on the norm :)
You need to do just as difficult to perform steps:
trying to derive the next number; but you already
know where that next number is, so it requires
much less brute forcing (and backtracking).
It won’t take as many /steps/, as much /time/,
as solving.
So I shouldn’t have st
Unless you're suggesting this:
https://code.jsoftware.com/wiki/NYCJUG/2012-11-13#Simple_.E2.80.9CSudoku_N.E2.80.9D_Generation
?
On Thu, Oct 14, 2021 at 10:21 AM Devon McCormick wrote:
> Easier said than done.
>
> On Thu, Oct 14, 2021 at 6:56 AM Hauke Rehr wrote:
>
>> No, generation is easier.
>
Easier said than done.
On Thu, Oct 14, 2021 at 6:56 AM Hauke Rehr wrote:
> No, generation is easier.
> Take a random permutation along both axes of
> |."0 1~ >:i.9
> and then erase numbers as long as they’re derivable
> by what remains.
>
> Am 14.10.21 um 04:19 schrieb Devon McCormick:
> > I jus
No, generation is easier.
Take a random permutation along both axes of
|."0 1~ >:i.9
and then erase numbers as long as they’re derivable
by what remains.
Am 14.10.21 um 04:19 schrieb Devon McCormick:
I just put up this page from a past NYCJUG meeting where we talked about
sudoku - https://code.j
Also, there’s been correspondence in this forum over the years since Sudokus
emerged around ‘05. Many solutions were discussed. Roger Hui presented
elegant compact solvers; John Scholes produced a nice one using “direct
definition” in Dyalog APL, I forget where it’s published. My own is ty
