The Nineteenth Byte

6:41 AM

Bunda-Gerth parser for abstract APL-family language code-golf parsing apl Background APL has four kinds of tokens: arrays, functions, monadic operators (mops) and dyadic operators (dops).1) Let's denote them A (arrays), F (functions), M (mops), and D (dops) respectively. Usually when programmin...

Jono 2906

7:14 AM

@WheatWizard oh wow

Q: Function that change one global variable

Probabilistically fair prize splitting for two-player coin toss code-golf probability-theory Introduction Adam (A) and Bubbler (B) are playing coin toss, where the one who wins 5 times first would win the prize of $32. If the game is aborted when the scores are A:B = 4:3, how should they dis...

2 hours later…

New Meta Posts

9:20 AM

I write the example for APL but it should be for every language: in APL code as r←f w ⎕ct←0⋄a←r←1x →0×⍳0=w∣r⋄a←a-⍨r+←a⋄→2 a function like this that changes a variable that could be external, or changes a system or language variable possibly used by other functions: it should not be allowed (ev...

discussion

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Q: Remove Duplicates From One List

10:56 AM

-4

Task: Remove all duplicates from one list. A list is simply a sequence of connected values that allows the same values to be stored at different positions in this sequence. If an item was found to be the same value as another item in this list, keep the first occurence of the item and remove th...

code-golf

A nice challenge, the only problem is that it is terribly specified. Can you find any flaws in my edit? (If this is a duplicate of an earlier challenge I can do nothing to it.)

@A̲̲ What types of elements can the list contain? Do floats that are close enough match? How about the int 1 and the float 1?

Checking the existing solutions for more spec...

@A̲̲ Will the list be homogenous of type? Some languages, like J and Haskell, can't handle mixed types.

@A̲̲ The last bullet is misplaced. It isn't a rule, just a comment.

Making sure that the list can only contain integers solves everything. However Quintec needs to agree with me.

You can just ask. Quintec is around.

@A̲̲ Suggested tags: array-manipulation and counting.

11:07 AM

@Quintec For your challenge is it okay to limit the list spec down to only allowing integers inside the list? (There are a lot of potential problems that are avoided when this spec is used.)

Jo King

11:31 AM

@A̲̲ I think it would much much better to just post a new question instead of editing a 4 year old closed one with a score of negative 4

@JoKing I think it would be easier to re-use the old question instead of posting a duplicate.

@A̲̲ Maybe ask for guidance on meta?

11:53 AM

@JoKing I can't risk posting a question, because I am terrible at explaining stuff.

@A̲̲ That's what the sandbox is for. By editing the old challenge, you're circumventing review.

New Meta Posts

12:05 PM

Q: Reopen or repost?

Which choice is better: re-posting a closed challenge with 4 downvotes, or reopen the closed challenge? The only problem seen in this challenge (at least by me) is that the spec is too unclear. If this challenge is not a duplicate, it is a valid challenge on CGCC. However, reposting the same ch...

discussion

1 hour later…

1:31 PM

Only one commit. That's the final language.

1 hour later…

2:36 PM

Lists of Crisps The Challenge A crisp company has plenty of one-letter flavours of crisp, but they want to separate them into pick'n'mix bags, and for some reason have an infinite volume of packaging. Thus, your task is to make sure every crisp in a bag is unique - the company doesn't care how ...

1 hour later…

3:53 PM

@A̲̲ Why auto-prepend quotes, rather than auto-append?

For instance, what strings is abc"def"ghi"jkl pushing?

dzaima

@cairdcoinheringaahing How often are you going to want to end the program with a string? From what I understand, auto-appending would be only usable for hardcoded KC (and even there it isn't any better)

@dzaima Not criticising, just interested as the vast majority of languages have auto-append

I use Jelly's auto-append feature a fair number of times, and I've always found SOGL's auto-prepend to be a bit confusing - notice that it starts with a string half way through decoding what the program does :/

dzaima

@cairdcoinheringaahing Jelly isn't left-to-right though

Fair point

dzaima

while auto-prepend might be a bit weird, auto-append in a LTR stack-based lang feels completely pointless to me

4:04 PM

Clearly the program should treat it all as a string, then execute the program on that string

The only compromise :P

Quintec

4:20 PM

@A̲̲ Oh yikes, that's embarrassing. I had completely forgotten I had that question around, lol, as you can see I was not very good at using the site properly

@DJMcMayhem Can you give chat.stackexchange.com/users/440100/user670427 write access to chat.stackexchange.com/rooms/52405/the-apl-orchard?

Quintec

I'm not exactly sure what you are trying to do: I agree with the others that creating a new question is easiest. In any case, this type of challenge is not received that well on the site nowadays - too simple and most languages have a built-in.

El'endia Starman

4:41 PM

@Adám Done. :)

@El'endiaStarman Thanks!

3 hours later…

8:06 PM

Decorate the Christmas Tree Tags: code-golfascii-art Intro It's a week before Christmas and the your family just bought a Christmas tree. Your little sister has a box of ornaments which she wants you to decorate the tree with. The tree is the following structure of ascii characters where n sp...

9:05 PM

eng.getwisdom.io/hacking-github-with-unicode-dotless-i

9:30 PM

and a nice game you might enjoy (remember 2048?) gridentio.com

frank

10:00 PM

got 640

id be surprised if I could beat that

10:20 PM

hm just got 1100, slowly things start to click:)

frank

this rng feels cruel

I can now understand how you could get a gambling addiction

842 this time

Wheat Wizard

10:37 PM

@JoKing Hey, I was wondering if you had any ideas for scoring 0 in the newest radiation challenge.

Jono 2906

Hey so if a cat program takes text from STDIN and prints it to STDOUT, does that mean a dog program takes any pre-existing output in STDOUT and places it in STDIN?