The Nineteenth Byte

mathcat

3:00 PM

I use vscode too

Seggan

that was posted before the edit

mathcat

but won't the backend and frontend files be in the same folder?

Seggan

ye but they can be in diff subfolders

mathcat

hmm yeah okay

Seggan

in fact, they have to be in diff subfolders for functions to recognize it as the backend

user

3:01 PM

@mathcat If you're working on two entirely different projects

@Seggan Normal sites would also put them in different subfolders

mathcat

okay yes

DLosc

@lyxal brb making 2048 in QBasic /hj

Seriously, tho, nice job

@emanresuA Techniques for taking an array in Pip: 1) use g if possible; 2) write a function instead of a full program; 3) use the -x flag, which evaluates all args.

thejonymyster

3:21 PM

lang dev question: how much work can you make the empty program do :P

Seggan

do everything that is implicitly done at the start (of a nonempty program) then do everything that is implicitly done at the end (of a nonempty program)

thejonymyster

respectable

Seggan

in vyxal, that means output the input

DLosc

@thejonymyster I think it's reasonable for the empty program to be a cat program (as in a number of golflangs). If you want to do something unreasonable, that's up to you.

thejonymyster

fair enough :P

Ginger

3:24 PM

empty programs print a link to the lang's github

3

thejonymyster

that kind of rules

my first thought was "if program is empty, evaluate the input as code"

sorry i replaced the replace with the word i wanted to word

6

Ginger

you seem to be on the starboard a lot

thejonymyster

i tell too many jokes

Ginger

are you a mushroom by any chance? because this chatroom seems to think you're a fun guy

5

thejonymyster

@thejonymyster the result of this would be usually to just cat input, but depending on the language's functionality, you might be able to get some interesting but still /reasonable/ results with fairly reasonable input :]

Ginger

3:29 PM

aw darn I just finished my regex that matches both fungi and fun guy: fun[g ][gi](uy)?

smarnav

@thejonymyster all of it

thejonymyster

like... would it be entirely unreasonable to say "take input as a string of numbers delimited by plus signs" and then submit the empty program :P

Radvylf Programs

@Ginger fun(gi| guy) is shorter :p

Seggan

@Ginger fun(gi)|( guy)

Ginger

but it's also less complex and I can't be having that

Radvylf Programs

3:30 PM

And yours also matches fungguy, fun i, fun iuy, and fun g

Seggan

oof beat me to it

Ginger

this is a Ginger Industries regex, obviously it must be overcomplicated and not work correctly

Radvylf Programs

@Seggan That doesn't actually work lol

Seggan

wait wat?

Radvylf Programs

You got the order of operations of | wrong

That's the same as fungi| guy

thejonymyster

3:31 PM

/fun ?gi?u?y?/

looks confused

Seggan

@RadvylfPrograms ah

Ginger

me: tries to delete a room
server: deletion failed: this room doesn't exist
me: *reload*
server: 404
me: ...well, yes

Radvylf Programs

[f]?[u]?[n]?[g ]?[ig]?[u]?[y]? for maximum compressability

thejonymyster

@Ginger did you put the room existence check before the deletion process :P

that is like putting the horse before the carriage :P

Ginger

no, I'm not stupid
(looks back at start of day)
nevermind

thejonymyster

3:34 PM

@thejonymyster im totally doing this btw (once the lang is complete)

DLosc

@RadvylfPrograms Attempt This Online!

Ginger

jesus christ why are there so many rooms

LYXAAAAAAAAAAAAAAAAAAAAAAAAAAAAAL

thejonymyster

@DLosc "heh... well, some people like to say im a... f iuy :P"

Seggan

@DLosc now i gotta use this in at least one challenge

thejonymyster

i just had an idea for one if it hasnt been done already

shortest program with infinite output: *

(just an asterisk)

DLosc

3:38 PM

Yep, that works (given the -a flag)

thejonymyster

oh yea i was just using the same flag

i havent checked if its been submitted

looks like it hasnt plus we allow dupes sooo gfdsg

just gonna submit that rq

Ginger

lyxal just got FLOODED with notifications

Seggan

how you know

did you just spam pings in another room

PyGamer0

@Ginger in lambda.chat?

Ginger

I deleted a bunch of garbage rooms

and every time a room is deleted the owner is notified

@PyGamer0 yup

thejonymyster

3:43 PM

did i format this answer correctly i havent posted an answer in another lang in so long im nervous HAHA

DLosc

Huh... there's some broken markdown on the how-to-search page. Is that something StackExchange has to fix?

@thejonymyster I'd put -a in the header instead of just a, but yeah, that looks good.

thejonymyster

ty :)

mathcat

The meta post has got 12 votes, what now?

Do I have to contact the OP?

Ginger

pongus

thejonymyster

3:59 PM

time to scour meta for posts about reposting

@mathcat relevant?

i dont recommend you sandbox it though, the 12 upvotes in meta should be enough feedback lol

or maybe do sandbox it

to make sure you phrase it well lol

mathcat

@thejonymyster depends on my challenge-writing skills :P

thejonymyster

so it doesnt end up at -45 again :P also yea i just off the bat assumed you were good

PyGamer0

cmm: when is LDW going to be a thing?

mathcat

@thejonymyster but I'm not good tho

thejonymyster

seems you're not well either <: |

:P

DLosc

4:05 PM

Do sandbox it. The meta post is not a challenge spec; writing the actual spec is likely to introduce some typos and/or make people think of clarification questions.

mathcat

kay

DLosc

@PyGamer0 Starting next week?

thejonymyster

i keep thinking it's going to be on wednesday cause of the acronym

Radvylf Programs

It is on Wednesdays, in the right timezone

thejonymyster

@lyxal why this

mathcat

4:09 PM

Is someone going to make it appear on the schedules tab?

Radvylf Programs

Not yet since we don't know when it is

(or do we?)

thejonymyster

i thought it was decided tuesday, same as lyal but offset by a week

or was it like

something

Radvylf Programs

LYAL's on Wednesdays too, right?

thejonymyster

uhh is it? jesus i dont know

Radvylf Programs

In the LYAL timezone(TM)

I'll go ahead and murder BMG though

thejonymyster

4:10 PM

oh are you shitposting? i genuinely cant remember

Feeds

Radvylf Programs has removed an event from this room's schedule.

mathcat

wow

thejonymyster

the beast is slain

mathcat

22 secs ago, by Radvylf Programs

I'll go ahead and murder BMG though

imagine someone reading this not knowing what/who BMG is

thejonymyster

he had it coming

Radvylf Programs

4:12 PM

Yeah, June 22 is a Wednesday

All LYALs are on Wednesdays

DLosc

LYAL starts on Tuesday night in the Western hemisphere and on Wednesday in the Eastern hemisphere

Radvylf Programs

It's just because of the timezone, most people will have it start during their Tuesday

thejonymyster

ahhhhhhh ok

Radvylf Programs

So have we decided on the name of the event?

thejonymyster

the issue was i genuinely didnt remember what day it was when i saw it start

LDW is kind of ideal, it just says what it is

nobody could be funny enough in time for it to be anything else

mathcat

4:13 PM

@RadvylfPrograms I'd say yes

Radvylf Programs

Well then

Feeds

Radvylf Programs has added an event to this room's schedule.

thejonymyster

i have registered :]

Radvylf Programs

Language Design Workshop is now a thing, starting at 12:00 UTC on June 15th (6-10 AM on Wednesday for North America). Register now!

11

DLosc

👍

thejonymyster

4:15 PM

speaking of,

mathcat

nice

DLosc

@RadvylfPrograms But that's not morning in North America, is it?

Seggan

@RadvylfPrograms yeah

thejonymyster

if i do have a lang where the empty program interprets input as a program, what should i do if input is empty as well? :P

DLosc

LYAL always starts the previous evening for me

Radvylf Programs

4:16 PM

@DLosc Should be...in my timezone it's 7:00 AM

It's offset 12 hours from LYAL

Seggan

@RadvylfPrograms you gonna do the announcement on meta or should i?

DLosc

Oh, I can't read :P

I see 12:00 and I immediately think midnight

Seggan

also, can we please rotate the times

i cant start it at 6 am

Radvylf Programs

No, we tried that for BMG and it was too annoying

user

Woohoo!

Who's going first?

DLosc

4:17 PM

@Seggan It's okay if you can't be there right at the start. I won't be either.

Seggan

@user nobody

Radvylf Programs

No "going", everybody just posts stuff

It's not like LYAL where a single language is the focus

user

Oh, guess I misinterpreted LDW

Seggan

1 min ago, by Seggan

@RadvylfPrograms you gonna do the announcement on meta or should i?

Radvylf Programs

@Seggan You can

thejonymyster

4:19 PM

just noticed my like... user thumbnail on the registration is big enough to show me self advertising, but not big enough to show the actual advert

Radvylf Programs

lol

DLosc

I'm probably not going to sign up for the event because I don't need an event reminder at 4 in the morning, but I plan to participate whenever I'm here.

user

It also sends you an email iirc which is kinda annoying

Radvylf Programs

It does? Not for me

user

idk I thought I got an email once

DLosc

4:21 PM

I have no idea b/c if it does, it goes to a Gmail tab that I rarely look at :P

user

Might've been something else

pxeger

I definitely get emails about it

DLosc

I think I get emails about SE notifications in general, so I wouldn't be surprised

user

I'm probably hallucinating then

Radvylf Programs

We should hire someone to be here during the event, and if anyone shows up who hasn't registered, they ping them with "you're not on the list" and kick-mute them

Ginger

4:22 PM

I can do that d:

tbh I could make a bot to do that

breaking: ginger screws up and kickmutes every user in tnb

user

Whoa whoa whoa, why are you kickmuting my kind?

DLosc

@RadvylfPrograms ಠ_ಠ

Seggan

everybody, this is the opposite of justice! let us rebel!

23TuringMachine

CMM: How does one write a good popcon?

Ginger

read that as popcorn

23TuringMachine

4:34 PM

That is what autocorrect thought!

Radvylf Programs

By writing a challenge that's really good without popcon, then adding the popcon tag

Usually you don't aim to write a popcon though, you just don't really have a better scoring criterion

23TuringMachine

Got it.

mathcat

in Vyxal, 17 secs ago, by Vyxal Bot

@mathcat I am doing a law degree so I can convict Radvylf on crimes against programming languages.

@RadvylfPrograms watch out

Ginger

@Seggan against what?

Seggan

17 mins ago, by user

Whoa whoa whoa, why are you kickmuting my kind?

Ginger

4:43 PM

me???

bad idea

thejonymyster

@mathcat careful, if you mess up bad enough, you may get convicted for crimes against law

user

Crimes against law? As opposed to crimes not against the law?

Seggan

👀

DLosc

@user Yes, such as word crimes

thejonymyster

@user Yes, such as those committed here :P

user

4:52 PM

That's hilarious

I'm sure you'd still need a really good lawyer to pull it off in reality

thejonymyster

not to be on topic but im kind of obsessed with the idea of a lang designed to cheese challenges with the empty program XD

Radvylf Programs

As in like, MetaGolfScript?

thejonymyster

i think the "empty program means the input is the program" can work for a few challenges but im trying to think of syntax which would be allowed as standard i/o (this message wont send?)

mathcat

Idea: Esolang, which only accepts correct grammar.

Radvylf Programs

@thejonymyster Even if standard I/O allows it, you could still be violating the loophole about taking input that contains additional information

pxeger

4:57 PM

@mathcat The grammar of English is practically undecidable

thejonymyster

@RadvylfPrograms ah right OTL

dream dead, back to work

mathcat

@pxeger Wat do u men?

^ correct grammar

pxeger

That's clearly incorrect grammar, and this sentence that I'm writing now is clearly correct grammar. However, it is probably possible to construct a sentence where it would require solving the halting problem to determine whether it's correct or not

Radvylf Programs

"correct"?

thejonymyster

i think me and someone else had that idea but for law

Radvylf Programs

5:00 PM

I thought we decided a long time ago there's no such thing

pxeger

that is also a concern

thejonymyster

can you present a case where you cant be guilty as itd solve the halting problem? :P

Radvylf Programs

"Wat do u men" is correct grammar because I understand it

mathcat

thanks

Seggan

@pxeger hmm

thejonymyster

5:00 PM

correct incorrect [x]
effective ineffective [:D]

4

pxeger

@thejonymyster the problem is that, while an esolang interpreter may not be able to solve the halting problem, a jury of twelve intelligent humans probably could

Radvylf Programs

Humans are just big computers, pretty easy to find a program where humans don't know how to decide if it halts

PyGamer0

@RadvylfPrograms yay

thejonymyster

@pxeger ah true

Seggan

@pxeger ~~AIs can solve the halting problem~~

thejonymyster

5:02 PM

my other thought; is legalese turing complete?

wait no, that's not how that works :\

PyGamer0

@pxeger it was also because no one was there to test the language which LDW should fix :P

pxeger

@RadvylfPrograms but you'd have to know that no human can know whether it halts in order for it to be a safe legal defence, which is clearly impossible

Radvylf Programs

E.g., n=0;while(1){if(disproves_collatz(n))break;}

thejonymyster

i was conflating programming languages with formal languages nvm

Radvylf Programs

Oh wait I didn't read thejonymyster's original message

thejonymyster

5:04 PM

i never send originam messages

Radvylf Programs

@pxeger I think they mean the halting problem in general, not for a specific program

pxeger

@thejonymyster that's probably an original message, actually

thejonymyster

@pxeger i dont know what youre (aincient power grenade) talking about

pxeger

probably, nobody has ever made the exact typo "originam" in that exact context before

Seggan

> At least one of these tags is required - 'bug feature-request discussion support'.

which one

pxeger

5:04 PM

discussion

Radvylf Programs

Discussion

New Posts

0

Q: Chat Event Announcment: Language Development Workshop

BMG has died. Nearly immediately I proposed the event that henceforth became known as MYAL. After a short discussion to flesh out the details, and the chat event Language Development Workshop was born. Here, we will get to show off our languages and their features, chat about them, get feedback, ...

pxeger

I guess we don't need to pin it, since your announcement message is already there @RadvylfPrograms

PyGamer0

oh dang @Rad pings Radvylf

cool lol

Radvylf Programs

@hyper-neutrino Could you 11 the link to that post into the first link in the pinned message, and make "Register now!" link to the schedule?

pxeger

5:06 PM

yeah, you only need the first 3 characters (if it's unambiguous) of the username

Radvylf Programs

It can be ambiguous too, right?

It'll just ping everyone with those letters

pxeger

I don't know

Radvylf Programs

@PyGamer0 Yeah I'm just really cool

6

mathcat

@mat

frick I'm not matpat

pxeger

I don't think you can ping yourself

Radvylf Programs

5:07 PM

Let's do this in the snadbox

pxeger

if you're going to keep testing this, go to the sandbox

I love that the sandbox's room ID is 1, because I can type its URL from memory :þ

hyper-neutrino

@RadvylfPrograms did I do it right

Radvylf Programs

Yep!

Thanks

Ginger

@pxeger "intelligent" that's a bold assumption d:

pxeger

q: is an underrated emoticon

user

5:11 PM

Meh, it's just :p or d: flipped

pxeger

:b is also underrated actually

Ginger

:b

nijand

user

:q is what I think is underrated

Ginger

tfw you're so sad you invert your tongue and lick your eyeballs

user

Y'all sticking your tongues out with no consequences. Some :q's are what you need

Seggan

5:13 PM

;)

@RadvylfPrograms i ~~love~~ dont like how you just decide to start LDW without asking anyone else

pxeger

I wasn't going to mention that, but now that you have, I'd like to say that I don't particularly love that

mathcat

;q

scary

pxeger

Answers to codegolf.meta.stackexchange.com/q/24835 were still being voted on, the most recent having only 3, 6, and 5 votes

Seggan

this ^

"love" was sarcastic

pxeger

1 hour ago, by Radvylf Programs

So have we decided on the name of the event?

It wasn't entirely "without asking anyone else", but the time certainly wasn't consulted on

smarnav

5:22 PM

how is my challenge now. virtually nothing is unchanged from last night, except not requiring crlf, but I didn't get a lot of response. codegolf.meta.stackexchange.com/a/24852/104373

Seggan

much better than last time

smarnav

also, is reopening rooms after being archived for inactivity possible

des54321

pretty sure you just need to get a mod/RO of that room to do it

Seggan

Java 19 looks like its getting a lot of features

a few from earlier releases

the new ones include virtual threads, structured concurrency, and record pattern matching/deconstruction

Wezl 'l o - o l'

@des54321 AFAICT ROs can't unfreeze rooms. I'm sure mods can though

Seggan

5:30 PM

static void printColorOfUpperLeftPoint(Rectangle r) {
    if (r instanceof Rectangle(ColoredPoint(Point p, Color c),
                               ColoredPoint lr)) {
        System.out.println(c);
    }
}

that from the JEP looks awesome ^

mathcat

5:44 PM

Feedback for the KOTH / controller script?

Radvylf Programs

@Seggan What? I asked about all the details and confirmed we were starting it before I did anything

2 hours ago, by Radvylf Programs

Not yet since we don't know when it is

2 hours ago, by Radvylf Programs

So have we decided on the name of the event?

2 hours ago, by mathcat

@RadvylfPrograms I'd say yes

pxeger

only one opinion was offered:

2 hours ago, by thejonymyster

i thought it was decided tuesday, same as lyal but offset by a week

not much of an agreement

but it's not exactly the end of the world, we can just change it in the future

Radvylf Programs

It had been discussed other times too IIRC

And since it was specifically to replace BMG, why would it be any other time?

pxeger

because it's 24 times longer (or 36 times longer, or whatever, depending on what we would have agreed on)

Radvylf Programs

LYAL's also 24 hours

So we have precedent for dealing with that

pxeger

5:53 PM

well I'm mainly thinking of my suggestion which hasn't been discussed yet and has only had 4 gross votes

Radvylf Programs

Tbh I didn't really intend on "starting" anything, I removed BMG from the schedule since we were already sure we were going to do the event, then since at least at the time I thought the name and time were pretty uncontested (and I made sure to confirm both, but I guess I didn't wait long enough), I figured we could go ahead and add it to the schedule since that's the only two things it depends on.

And I thought we'd decided after BMG not to do rotating start times, since we've already had to do big scheduling changes in the past when we switched from three to two start times for BMG

And it's even less important with a 24-hour event

→ 1 message moved to Off-Topic TNB

I just got choose-a-room-to-move-to jumpscared again and almost moved that to Sci-Fi's main room :|

smarnav

lol

Radvylf Programs

"The guy who keeps invading other sites' main rooms" is a title I'd rather not award myself lol

thejonymyster

CMC: take a list of n (where n is odd) integers and reverse it but only for every other item. e.g. [1,2,3,4,5,6,7,8,9]=>[1,8,3,6,5,4,7,2,9]; [11,42,33,24,55]=>[11,24,33,42,55]

Radvylf Programs

6:10 PM

f=x=>x+x?[x[0],...f(x.slice(1).reverse())]:x

Hey wait that only works for even-n lists :|

thejonymyster

wow i dont understand that

Radvylf Programs

It's cool, it reverses every suffix of the list

E.g., start by flipping every item except the first one, then every item except the first two, and so on

But with odd lists it apparently doesn't work

thejonymyster

lol trolled :P

obviously that was intentional, definitely

des54321

I think ive got the start of something fun in pip, gimme a sec

pxeger

@thejonymyster Ugly Python, 42 bytes: lambda a:sum(zip(a[-2::-2],a[2::2]),a[:1])

thejonymyster

6:19 PM

ooh i like it

des54321

@thejonymyster not optimally golfed i think: Pip, 16 bytes: (UWg0)WVRV(UWg1)

mathcat

I think only game 2 of the money series will work as a KOTH :/

Radvylf Programs

Which is that?

If it's the smallest unique number one, we already have that

And it's possibly my favorite dupe target on the site

mathcat

@RadvylfPrograms oh okay

I think game 3 might work too

Wezl 'l o - o l'

@RadvylfPrograms *makes a room called "other sites' main rooms"*

mathcat

6:30 PM

@mathcat the one with the hundred dollars in the box and stuff

Yeah I think it could work

It doesn't have any randomness + with many bots it'll probably be intresting

thejonymyster

do we have a challenge where you do what this challenge's title says you have to do :\

i.e. that but actually a decision problem

des54321

@des54321 if i change which "every other item" it flips i can get 15 bytes: R(UWg0)WV(UWg1)

hyper-neutrino

@thejonymyster Jelly, 3 bytes: UÐe (Try It Online!)

the way Jelly's "apply at indices" quick works, which is normally a bit weird at times, is actually perfect here lol

thejonymyster

6:46 PM

nice!

@des54321 interesting :0c

hyper-neutrino

@hyper-neutrino this solution actually only works for odd n lol

des54321

@thejonymyster I save a byte there because I can use the 1-byter for reverse (R) instead of the two-byter RV, if i tried to use R in the 16-byte version the central bit would get parsed as W VR instead

thejonymyster

@hyper-neutrino tbf, the problem wouldnt really make sense for even n

mathcat

@thejonymyster Vyxal, 3 bytes: yṘY (Try it Online!)

hyper-neutrino

@thejonymyster it does, 1 2 3 4 5 6 → 1 6 3 4 5 2

thejonymyster

6:49 PM

why didnt you move 4?

@mathcat more like yṘY it online lol

mathcat

yeah I forgot to remove the R

thejonymyster

oh i was just making a joke about hte name being similar to the code

@hyper-neutrino this doesnt fit the definition of the problem, it's close though

though i kind of glossed over definitions :P

att

apl 10 bytes: ⌽@(~2|⍳∘≢) Try it online!

thejonymyster

glorious glorious underspecified cmc

also nice i was hoping id see apl

hyper-neutrino

@thejonymyster because when you reverse an odd-length list the middle element doesn't move lol

thejonymyster

6:55 PM

@hyper-neutrino 1 2 3 4 5 6 is an even length list :P

hyper-neutrino

yes but the sublist 2 4 6 isn't :P

thejonymyster

aha

i did not consider this interpretation :o i am learning

des54321

knew my pip solution wasnt optimal, heres 12 bytes: {aWVRVb}VUWg

thejonymyster

nice!

des54321

and 11 byter where the other sublist is flipped: {RaWVb}VUWg

DLosc

7:09 PM

@des54321 Oh, very nice! I had 13: R:(UW:g1);WVg

Adám

@att 7: ⌽@(=\=) Try it online!

DLosc

@des54321 This one can also be 11 bytes by using a lambda expression and flipping the operands of V: UWgV_WVRV B

smarnav

what is the jelly atom for split x at occurrence of y

des54321

@DLosc oh thats smart! I confess i still dont fully understand the whole lambda thing in pip but i think i understand it better with this now

23TuringMachine

ato.pxeger.com/…

73 bytes of haskell.

Very new to haskell golf.

des54321

7:23 PM

69 bytes (nice) just by removing some whitespace: [`b(x:z)y=x:b y z
b _ _=[]
f l=b(filter odd l)(reverse (filter even l))`](https://ato.pxeger.com/run?1=m708I7E4OzUnZ8GCpaUlaboWN12TNCqsqjQrbSuskhQqFaq4khTiFeJto2O50hRybJM00jJzSlKLFPJTUhRyNDWKUstSi4pTFWDCQG4eUFwTaphKbmJmnoKtQkFRZl4JUJFCtKGOkY6xjomOqY6ZjrmOhY5lLFQtzAEA)

ooooh code formatting is happy there

DLosc

@des54321 One nice thing about modern Pip is you can just output a lambda expression, which may help you get a feel for how they correspond to full function syntax.

des54321

@DLosc oh thats very neat

smarnav

sudo what is the jelly atom for split x at occurrence of y

DLosc

"Okay. Here's what I found on the web."

mathcat

You found atoms?

pxeger

7:27 PM

@des54321 a few further minor improvements: redefining b as a binary infix operator %, and exploiting the fact that (x:z) fails to match only if it's [], which saves a byte:

des54321

@23TuringMachine also problem with this is it separates odd and even integers, not every other value of the list

pxeger

Haskell, 59 bytes: (x:z)%y=x:y%z;o%_=o;f l=filter odd l%reverse(filter even l)

des54321

im just trying to get a grasp on haskell myself, im gonna take my own crack at coming up with a solution for this in haskell

Sandbox Posts

0

A: Sandbox for Proposed Challenges

The Magic Money Machine This KOTH is based on a game of Tom Scott's series Money, so make sure to check out his video Challenge There are three rounds per game. Each bot will get 100$. They'll have to decide how much money they'll keep for themselves, and how much they're going to put in the Mag...

mathcat

^ this time I'll wait for feedback first before coding the controller

pxeger

7:29 PM

didn't you already post that?

mathcat

It's another one

I deleted the old one

DLosc

I don't think there's an "apply at indices" in BQN, which is making this hard

14 bytes: 2⊸|⊸⋈¨∘↕∘≠⊑≍⟜⌽

mathcat

@DLosc not even interleave/uninterleave?

DLosc

Don't think so? But I'm still learning.

att

7:49 PM

@Adám so monadic = zeroes an array?

Adám

@att No, it compares to 0, which would then fail if there are any zeros. However, you could use monadic ⍷ instead, which is the same as {⎕ML←0 ⋄ ∊⍵} i.e. type, and while all elements are numbers, you get all zeros.

@DLosc The corresponding thing is under select.

DLosc

Ooh, I've never used under before :D

des54321

fiddling around with haskell to try to learn it/figure out a solution to this, why is this not outputting [[1,3,5,7],[2,4,6,8]]

att

I see

des54321

@des54321 and this outputs what it should, why does putting the transpose inside the function change things?

DLosc

7:58 PM

@des54321 Presumably because you don't actually want to transpose each intermediate result, you just need to transpose once at the end

thejonymyster

would "takes input as a roman numeral" be reasonable input format on a challenge not about roman numerals

des54321

@DLosc oooooh of course, because transpose is happening in the recursive calls facepalm

DLosc

@thejonymyster I'd say only if you're using a language that normally takes input as Roman numerals (maybe Intercal?)

thejonymyster

fair!

des54321

im more interested in what possible situation you are in where taking input as roman numerals would help

Transcript for