I hadn't read part 2
All it needs is a slight modification:
>./ , | +/\hxv {~ dbd i. <;._1 ',', dbi
1424
On Mon, Dec 11, 2017 at 3:54 PM, Jimmy Gauvin <[email protected]>
wrote:
> Hi,
>
> I used axial coordinates from https://www.redblobgames.com/grids/hexagons/
> to get thru part 1.
> Will do part 2 tonite.
>
> >./ | +/hxv {~ dbd i. <;._1 ',', dbi
> 675
>
> where :
>
> dbi=: }: fread 'C:\Downloads\day11inp'
> dbd=: ;:'n s ne nw se sw'
> hxv =: 6 2 $ 0 _1 0 1 1 _1 _1 0 1 0 _1 1
> dbd,.<"1 hxv
> ┌──┬────┐
> │n │0 _1│
> ├──┼────┤
> │s │0 1 │
> ├──┼────┤
> │ne│1 _1│
> ├──┼────┤
> │nw│_1 0│
> ├──┼────┤
> │se│1 0 │
> ├──┼────┤
> │sw│_1 1│
> └──┴────┘
>
>
> \ n /
> nw +--+ ne
> / \
> -+ +-
> \ /
> sw +--+ se
> / s \
>
>
> On Mon, Dec 11, 2017 at 12:43 PM, Raul Miller <[email protected]>
> wrote:
>
>> I've been struggling with AoC day 11 - either AoC's implementation is
>> wrong, or mine is.
>>
>> Here's my implementation:
>>
>> nms=: ;:'n ne se s sw nw'
>> dir=: ^j.2p1*(%~ i.)#nms
>>
>> delta=: dir {~ nms i. ]
>>
>> location=: +/@delta
>> furthest=: [: ({~ (i. >./)@:|) +/\@delta
>> path=:3 :0
>> nms {~(|: i."_1 <./)|dir -/ 2-/\(- dir&([ {~ [: (i. >./) +/
>> .*&.+.))^:(0.5 <|)^:a: y
>> )
>> showpath=:3 :0
>> p=. path y
>> echo 'steps: ',":#p
>> echo (":,.#/.~p),.' ',.>~.p
>> )
>>
>> And here's a translation to python along with a request for help:
>>
>> https://www.reddit.com/r/adventofcode/comments/7izym2/2017_
>> day_11_solutions/dr36ujj/
>>
>> I suppose I might retranslate the python implementation of path back
>> into J, but they both give the same answer, so I'm convinced that
>> that's not the issue.
>>
>> So far, it's only been a few hours, but I've not gotten any real
>> feedback from reddit, and I've gone over this enough times that I'm
>> convinced that if I screwed up I've got such a big blind spot that I'm
>> not going to see through the problem today.
>>
>> Anyways... if anyone else has some insight here (and/or a better
>> implementation), I'd love to see it.
>>
>> Thanks,
>>
>> --
>> Raul
>> ----------------------------------------------------------------------
>> For information about J forums see http://www.jsoftware.com/forums.htm
>
>
>
----------------------------------------------------------------------
For information about J forums see http://www.jsoftware.com/forums.htm
