LF2 ... new to me! I was a bit thrown by the parsing of the trivial example
being different from that for the data file; however that's likely a
by-product of copy&paste on the example versus downloading the file. Anyway, I
wasn't expecting LF,LF (or LF2); the usual
LF cut ...
missed the empty lines.
The parsing method I eventually used was far from elegant, so I won't share it!
Mike
Sent from my iPad
> On 2 Dec 2022, at 19:42, Raul Miller <rauldmil...@gmail.com> wrote:
>
> Here's the parsing routine I used for day 1:
>
> parse=: {{ +/@(__&".;._2);._2 (y,LF) rplc LF2;LF,'/'}}
>
> Its y argument would be the raw text of the input.txt provided for day 1.
>
> I hope this makes sense,
>
>
> --
> Raul
>
>> On Fri, Dec 2, 2022 at 11:36 AM Jaume <greenni...@gmail.com> wrote:
>>
>> Hello all
>>
>> I've been trying to dabble in J for quite some time, but I still haven't
>> got the hang of it, so I'm trying (not for the first time) to go in deep
>> trying to solve each day.
>>
>> Alas sometimes it feels like hitting my head against the wall, and so I
>> come to you with what I tried and what I lack to end the problem. Let's
>> start.
>>
>> On day 1 we have an heterogeneous array, and we have to get the elf who
>> carries the most calories.
>>
>> Using the example I can solve it for both parts of the day, using a boxed
>> array.
>>
>> in=: 1000 2000 3000;4000;5000 6000;7000 8000 9000;10000
>>
>> {. \:~>+/ each in
>>
>> 24000
>>
>> +/ 3 {. \:~>+/ each in
>>
>> 45000
>>
>> I can read the data from a file and I can also format it like in the
>> instruction above
>>
>> p =: 1!:1<'test.input'
>>
>> p rplc (LF,LF);';';LF;' '
>>
>> 1000 2000 3000;4000;5000 6000;7000 8000 9000;10000
>>
>> But how do I go from one representation to the other? Or if there's another
>> way to do this transformation I'm all eyes.
>>
>> I know that that is a string, and I know that numbers are different and I
>> know of ". to transform to numbers. I don't know how to partition the input
>> on something.
>>
>> Thanks.
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