Thank you both.
Unfortunately neither of your ways work for me.
ev =: (9 3$'A XA YA ZB XB YB ZC XC YC Z')&(4 8 3 1 5 9 7 2 6 { ~ i.)
|spelling error
| ev =: (9 3$'A XA YA ZB XB YB ZC XC YC Z')&(4 8 3 1 5 9 7 2 6 { ~ i.)
| ^
No idea how to solve it. I tried the different & related verbs to no avail.
parse=: ('ABC',:'XYZ') i."1 |:-.&' ';._2 input
|length error
| parse=:('ABC',:'XYZ') i."1|:-.&' ';._2 input
I'm trying to use different input, but all give me the same error message.
I tried reading it from the file, unboxing, making it 'A YB XC Z' ...
without success.
On a different note, I'm writing down all this, breaking down the sentences
so I can understand them in the future too, making it in a literate
programming style. I will add this to my solutions. You can see a work in
progress here:
https://github.com/JaumeGreen/adventofcode/blob/master/2022/day02/log.ijs
Do you prefer if I cite you by name, nick, not at all?
Thanks.
Missatge de Raul Miller <rauldmil...@gmail.com> del dia dv., 2 de des. 2022
a les 20:39:
> Here's a cleaned up version of how I approached that (here 'input'
> held the raw text of input.txt provided by the aoc website).
>
> parsed=: ('ABC',:'XYZ') i."1 |:-.&' ';._2 input
> part1=: {{ +/1+y+3*3|(1+y)-x }}/
> part2=: {{ +/(3*y)+4|&.<:x+y }}/
>
> Note that my original implementations were a bit different. For
> example, for part 1, I had
>
> scor=: {{
> 'op me'=. y
> (1+me)+ 3*op {{ (x |. 2 0 1)i.y}}"0 me
> }}
>
> and used
> +/scor parsed
>
> I hope this makes sense,
>
> --
> Raul
>
> On Fri, Dec 2, 2022 at 12:40 PM Jaume <greenni...@gmail.com> wrote:
> >
> > Hello again
> > I managed to solve it, but I don't like it much, so feel free to educate
> me.
> >
> > Reading the file, and evaluating the result is something that looked
> nice:
> >
> > p =. 1!:1<'day02.input'
> >
> > +/>ev each cutopen p
> >
> > xxxx
> >
> > +/>ev2 each cutopen p
> >
> > xxxx
> >
> > Now are the evaluating functions. I really don't like how they are done.
> > I'd even prefer to create a table and search in it, but I don't know how.
> > So a select. is used.
> >
> >
> > ev=: 3 : 0
> >
> > select. y
> >
> > case. 'A X' do.
> >
> > 4
> >
> > case. 'A Y' do.
> >
> > 8
> >
> > case. 'A Z' do.
> >
> > 3
> >
> > case. 'B X' do.
> >
> > 1
> >
> > case. 'B Y' do.
> >
> > 5
> >
> > case. 'B Z' do.
> >
> > 9
> >
> > case. 'C X' do.
> >
> > 7
> >
> > case. 'C Y' do.
> >
> > 2
> >
> > case. 'C Z' do.
> >
> > 6
> >
> > end.
> >
> > )
> >
> >
> > And the same with different numbers for ev2.
> >
> > Would this be an appropriate way to approach the problem? Is there a
> > "better" way?
> >
> >
> > 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
>
--
The fact that an opinion has been widely held is no evidence whatever that
it is not utterly absurd. -- Bertrand Russell
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