The Nineteenth Byte

Given any monotone list of n integers A, is it always possible to find an integer-coefficient polynomial f such that A = [f(1), f(2), f(3), ..., f(n)]?

DLosc

@emanresuA Update: Having more or less successfully introduced the exploit I was trying to introduce, I've just discovered a different, unintentional exploit. X^D

I'll probably leave them both in. Whenever a robber cracks the first one, I'll patch it and submit a second cop answer.

allxy

@DLosc Hm, cool

Wait, wrong account

emanresu A

It'll be nice to have something to actually crack

lyxal

@allxy Nerd.

allxy

1:50 AM

If I'm a Nerd., you're a d.Nre by rearrangement.

emanresu A

(Two of the three answers are mine, and one I know the answer and have agreed not to crack)

DLosc

Part of the challenge here has been holding off on adding more language features just for the sake of adding language features. It's a fun little language, if I do say so myself.

After the CnR, I plan to clean up the interpreter a bit and add it to my Esolangs repository.

ta Radvylf srik su shilani

@emanresuA Done

emanresu A

Thanks

#1 was just found while messing around, #2 was trying to create a dso wrapper.

ta Radvylf srik su shilani

YT needs to add a 1.1938 speed option

emanresu A

2:01 AM

CMQ: Should you use a sock to spam flag?

caird coinheringaahing

You shouldn't really

ta Radvylf srik su shilani

I'd say no

emanresu A

Okay

(Just asking, haven't done anything)

caird coinheringaahing

In short, there's one rule for using a sock: don't do anything you couldn't do with one account. So, upvoting a post is fine. Upvoting it with both accounts isn't. Flagging something as spam is fine. Raising 2 spam flags from one person (with a sock and a regular account) isn't

emanresu A

Okay.

ta Radvylf srik su shilani

2:03 AM

What if I have dissociative identity disorder?

caird coinheringaahing

So, if you happen to be logged into your sock, and you see some spam, yes, you can flag it. But, if you then log back into your main account, you cannot spam flag the post again

@taRadvylfsriksushilani Talk to your therapist

emanresu A

Btw, DSO is now accepting (JS-based only) languages now that I've figured out how to create wrappers. If you send me stuff now I can add it before the next push.

ta Radvylf srik su shilani

Do you have dotcomma or Risky?

emanresu A

Nope

caird coinheringaahing

@emanresuA That's a .surge.sh link, I don't trust it :P

emanresu A

2:05 AM

@cairdcoinheringaahing It's fine, I promise

(I've got a cool dynamic-loading thing so permanent interpreter file links are fine)

ta Radvylf srik su shilani

I accidentally left YT at 1.25 speed after listening to a non-speedycake Caramelldansen remix, and then I opened the original and it was playing way to fast lol

caird coinheringaahing

Listening to a song at different speeds is like listening to different songs tbh :P

ta Radvylf srik su shilani

Depends on the song I think

caird coinheringaahing

Call you Mine at 0.85 is one of my loop songs

(as in, I will just put it on loop and listen to that alone for a couple of hours)

Are Peter Taylor's badges not showing here for anyone else?

ta Radvylf srik su shilani

I can repro

emanresu A

2:16 AM

^

No one on MO either

ta Radvylf srik su shilani

They're visible until the mathjax loads

caird coinheringaahing

Gonna check a couple of other sites to see if it should be a bug on MO meta or MSE

ta Radvylf srik su shilani

How did I read "consistency strength" as "conspiracy theory" lol

caird coinheringaahing

I can see badges on this site, so I think it's just MO

Bug report posted

Interestingly, doesn't appear to be the case for MO Meta

emanresu A

2:41 AM

If you want to add this, I'm on Firefox 96 on MacOS 12.

ta Radvylf srik su shilani

I'm on Chrome 96 on Chrome OS

emanresu A

I can test Safari as well

Repro'd on Safari 15.1

ta Radvylf srik su shilani

Repro'd on Firefox on Chrome OS

New Posts

0

Q: Prime PEMDAS of N

Given an integer n, print or return integers a, b, and c that satisfy all of the following conditions, if such integers exist: a * b + c = N a, b, and c are all prime a > b > c If no valid combination of integers exist, you should return nothing, 0, None, or raise an error. If multiple valid co...

caird coinheringaahing

I think I've got enough repro's to show if a mod tries to status-norepro it :P

emanresu A

2:47 AM

@NewPosts To FGITW or VTC as unclear

ta Radvylf srik su shilani

Ooh Swedish seems really cool so far

It looks like the verbs don't have to have endings for who the subject is, which is a really nice break from spanish

E.g, jag äter (I am eating) and hon äter (she is eating)

emanresu A

Use esperanto

ta Radvylf srik su shilani

yuck

Unrelated String

all i know about swedish grammar is noun declension includes definiteness but i'm actually not sure if swedish does that i just know it's something that old norse and at least one modern scandinavian language do

meanwhile german and greek use articles that themselves decline

ta Radvylf srik su shilani

4:07 AM

Motivation is the derivative of work completed

emanresu A

Hmmm

ta Radvylf srik su shilani

Well, I guess I should say productivity.

Motivation is just one factor in the amount of work completed in a given time period.

Like, if I was really excited to work on a golfing language but someone was currently in the process of cutting both of my legs off I would probably have to wait

caird coinheringaahing

@taRadvylfsriksushilani Disagree. motivation and work form a system: the more work you do, the more motivated you are to do more work

ta Radvylf srik su shilani

Man I'd love to live in that universe

caird coinheringaahing

@taRadvylfsriksushilani The trick is to be me :P

Motivation is difficult to get started, but once it is, work implies more motivation implies more work

DLosc

4:15 AM

0

A: Inject arbitrary code into a compiler (cops)

Exceptionally Exceptionally is a toy language I invented for this challenge. It is inspired by, implemented in, and transpiled to Whython (pxeger's modified version of Python 3 with an added exception-handling operator). The language A program in Exceptionally contains of a series of lines, each ...

emanresu A

Correction: The more work you feel like you've done

DLosc

Crack away ^_^

ta Radvylf srik su shilani

DLosc

I gotta say, I really love challenges here that involve creating a programming language.

ta Radvylf srik su shilani

This is probably the most depressing graph I've ever made:

DLosc

4:19 AM

I don't know how well I'll do in the cops-and-robbers part of it, but inventing and implementing the language has been super fun.

att

@taRadvylfsriksushilani Looks about right

DLosc

@taRadvylfsriksushilani That's what most projects look like, TBH. The trick is learning to live in that long-tail space and keep the line far enough above zero that you keep making progress.

Razetime

the key is to have other people interested in helping with the project by the time you get burned out

DLosc

(The other trick is learning what projects you're willing to stick with, and ditching the other ones before you sink enough time into them that you feel bad about not continuing.)

emanresu A

@DLosc Creating my own verrsion of this and running a fluffer seems a bit cheaty and a lot difficult.

DLosc

4:22 AM

@Razetime That does require you to be willing to accept contributions from other people, who may not share your particular vision :P

Razetime

saddening

DLosc

@emanresuA What is a fluffer?

emanresu A

I feel like it's something like \"__name__"

ta Radvylf srik su shilani

@DLosc An especially cute dog

"This little fluffer is named Jimmy"

emanresu A

@DLosc generates random text and tests it

ta Radvylf srik su shilani

4:22 AM

Sounds like a Fuzzer

DLosc

@taRadvylfsriksushilani Hmm, running one of those doesn't sound particularly difficult ^_^

emanresu A

Oopss

DLosc

Having put off dinner to finish that, I'm now going to eat and go to bed.

o/

ta Radvylf srik su shilani

o/

emanresu A

o/

Unrelated String

4:27 AM

o/

ta Radvylf srik su shilani

Ooh, I have an idea for a mostly industrial-revolution-themed KotH

Name idea: Capture the Slag

(Since "slag" is metal impurities from smelting iron)

emanresu A

Hm

caird coinheringaahing

4:49 AM

26

Q: Viewing reputation and badges is now opt-in

This announcement is a little late (see the discussion here), but in response to discussions over many years, we (the moderators and board) have implemented a change to the site where by default, reputations and badges will not be displayed on questions or the front page. You can still view a us...

discussion user-interface reputation badges

Appears to be an MO only thing

ta Radvylf srik su shilani

CMQ: If you could have your consciousness preserved forever after your death, in some sort of computer or something, would you? Assume that it is maintained for the rest of humanity's existence.

caird coinheringaahing

@taRadvylfsriksushilani Can I learn after I die?

ta Radvylf srik su shilani

Yes

I suppose my choice would depend on if time would progress as usual, and if I could interact with things (like, could I have a simulated sheet of paper? a calculator? a laptop? an infinite desert with some rocks?)

caird coinheringaahing

In which case, I don't see this as "death", and, so long as I could interact with things in some way (likely through a computer interface), absolutely

If I was just a brain in a jar, probably, holding out hope that someone would try to allow me to interact with things

ta Radvylf srik su shilani

Hmm. now I'm wondering if I would want to do it if I were put in an xkcd 505-like place

caird coinheringaahing

4:55 AM

@taRadvylfsriksushilani Even more so

I've always seen 505 as something I'd do in a heartbeat if offered

The only problem is that I'm not sure I'd have to skill to simulate a universe through a cellular automaton

ta Radvylf srik su shilani

Skill? You have infinitely much time to learn the needed skills :p

caird coinheringaahing

Yeah, but I procrastinate; I'll learn about them tomorrow:P

Sandbox Posts

6:07 AM

0

A: Sandbox for Proposed Challenges

Tips for golfing in Seriously I am looking for tips to code in this golfing language Seriously, and was wondering what some of the best/subtle ways for golfing this language is. Thx in advance!

DialFrost

btw how do i code in the diff languages like 51AB0E, charcoal, retina, vxyal???

u cant really read them

hyper-neutrino

if you're really familiar with the language you can read them

i can read simpler jelly programs especially if i approximately know what they're meant to do

otherwise you just have to decode them with the codepage / element lookup table or hope the answerer adds an explanation

DialFrost

er i kinda mean how do understand when you urself code it cuz i hope to learn one of these

all i know rn is python

Unrelated String

wdym

DialFrost

6:25 AM

how do u code diff languages like vxyal when doing a challenge

ta Radvylf srik su shilani

You just get used to them

You can also type them in more readable formats, they usually allow whitepace and comments

But obv. you remove those when posting

Unrelated String

vyxal is an outlier for having comments

but yeah whitespace is a thing

not too useful once you can read what the digraph starters and any like funky literal syntax are, granted

but in something like jelly i guess you could space around grouping quicks if you're having a hard time parsing them visually

maybe even space around chain patterns

DialFrost

any vxyal/jelly/any other golf-lang person that is willing to teach me? :)

i've been looking at this for a while know lyxal.pythonanywhere.com cant make any sense of it

i was looking at the keyboard btw

Unrelated String

only thing i do to ungolf my in progress jelly is use multiple lines for something i know i'll need to group that i'm not sure how long it'll actually turn out

@DialFrost github.com/Vyxal/Vyxal/tree/main/documents/knowledge

DialFrost

?

Unrelated String

6:31 AM

the vyxal documentation

not sure if there's like a tutorial or something since despite being an ro i don't actually know vyxal

DialFrost

3347 lines holy crap

emanresu A

7:00 AM

@DialFrost vyxal.pythonanywhere.com

lyxal

7:17 AM

@UnrelatedString you're an ro because we use you as a sanity check for language ideas sometimes lol

Unrelated String

7:46 AM

oh yeah

pxeger

I think we know what the xkcd header is revealing now

Unrelated String

i see

emanresu A

@pxeger Lol

It's counting down to 4am my time

No way jose am I staying up until then

emanresu A

8:10 AM

I have a file called Untitled-1-18-27-10-6.js

@pxeger would you mind rerevirwing the discord link PR on Vyxal? (See comments)

lyxal

*re-reviewing

emanresu A

Shaddup I’m on mobile

CMQ: what should a print builtin do dyadically?

lyxal

Print both arguments

emanresu A

Okay

I hate how JSON.stringify causes pain with bigints

Unrelated String

@emanresuA treat one argument as a format string or something?

pxeger

8:29 AM

I need a fairly compressible string of a few kilobytes, ASCII with no whitespace (for a kolmogorov-complexity). Can you think of some interesting ones I could use?

lyxal

Bee movie script without spaces

Because, after all,

According to all known laws of aviation, there is no way that a bee should be able to fly. Its wings are too small to get its fat little body off the ground. The bee, of course, flies anyways. Because bees don't care what humans think is impossible.

Adám

8:57 AM

@DialFrost I can teach you APL, which, while not a golfing language, is fairly competitive. Btw, Jelly descends from APL.

Unrelated String

@emanresuA could also print one argument and return the other

Adám

@pxeger 99 bottles of beer?

emanresu A

10:00 AM

@pxeger The ATO root password repeated a few hundred times

@Adám … they’re tacit array languages and that’s pretty much the only similarity

Unrelated String

@emanresuA jelly is literally based on j which is based on apl (and i think there's some stuff directly from apl)

array based tacit languages in general are all apl derivatives

jelly's a weird case in the broader landscape because of the whole fixed adicity thing ofc

but yeah

Adám

Although Jelly's array model is taken from K… another APL derivative.

Unrelated String

that too

emanresu A

What I meant is, Jelly’s so optmised for code golf that it barely resembles traditional array languages

Adám

Most APL derivatives find the sum using +/ — Jelly included.

emanresu A

10:04 AM

For example, most array languages allow you to group expressions with parentheses- jelly doesn’t

Adám

+/ for sum indicates a very APL-characteristic thing: having functions and higher-order functions that modify them inline.

emanresu A

@Adám That’s true. Vyxal 3 will probably do the same as well :p

But jelly also has S which is golfier

Adám

Functions and Operators in APL. Verbs and Adverbs in J. Atoms and Quicks in Jelly.

emanresu A

Elements and modifiers in Vyxal

Adám

@emanresuA Sure, but that's because it is a golfing language. Its origins are clear.

emanresu A

10:06 AM

True

Adám

If yo feel it is appropriate, add Vyxal to APL Wiki.

emanresu A

It’s… sorta tacit, but only in its modifier structure

For example, ƒ is reduce and ƒ+ is the equivalent of +/

Adám

APL has always had +/ but didn't always support tacit programming (beyond that).

user

@emanresuA format one arg using the other

emanresu A

@user stringn’t

Vyxal isn’t an array language because it has string and string overloads as standalone types

Unrelated String

10:12 AM

last time i tried using vyxal i think i remember there being a few string builtins with missing array equivalents that i was looking for

emanresu A

Yeah

It’s sometimes annoying

Unrelated String

feel like having strings isn't itself un-array though

Adám

@emanresuA Can you not convert a string to a character list?

emanresu A

We do have infinite lists

Unrelated String

could have sworn i've seen some or another array language explode-dosomething-implode a string

lyxal

10:14 AM

@UnrelatedString would you be okay with putting such features into a list so I can know what to add for version 3?

emanresu A

@Adám are there any array languages with infinite list support?

Adám

@UnrelatedString K has both strings (symbols) and character lists.

@emanresuA KAP.

Unrelated String

that was probably it yeah

emanresu A

@Adám link?

Adám

apl.wiki/KAP (like everything else…)

Unrelated String

10:15 AM

@lyxal vaguely remember it had something to do with splitting or replacement? was a while ago

emanresu A

@lyxal could be worth making \/ scan/reduce? In v3

lyxal

@emanresuA that's already planned

@UnrelatedString those both work for lists and strings alike though

Adám

What's the difference between ƒ and /?

emanresu A

Sublists for example is a one-buyer for strings but needs a digraph for lists

@Adám aside from being prefix/postfix, nthing

gtg, o/

Adám

What does o/ do? ;-)

New Posts

10:33 AM

0

Q: Output two numbers (Cops' thread)

This is the cops' thread to a cops-and-robbers challenge. Click the link to find the [robbers' thread]. The challenge here is very simple. Create two programs of the same size, in the same language, which output two different numbers, \$x\$ and \$y\$. Submit both programs, both numbers and th...

number cops-and-robbers busy-beaver

Neil

Program that's a polyglot in the same language twice: dangermouse.net/esoteric/piet/helloworld-pietbig.gif

New Posts

0

Q: Output two numbers (Robbers' thread)

This is the cops' thread to a cops-and-robbers challenge. Click the link to find the cops' thread. In the cops' thread of this challenge answerers will be writing programs which output two numbers, \$x\$ and \$y\$. As robbers your goal will be to crack their submissions. To do this you find ...

number cops-and-robbers busy-beaver

Fatalize

1:05 PM

@NewPosts The more I think about it, the more I think that it’s not hard to output ridiculously huge ranges of numbers, which leads to robbers not being so much about finding the right code to break it, but more about computing whether the number is in the range or not

One strategy I have in mind is converting printable ascii to char codes, then computing factorials of them, then left-fold exponent/multiply/factorial etc.

it’s only a few bytes long, and sure you might find a way to get something in between in 1 less byte, but it’s really annoying to check if it will be in the range