The Nineteenth Byte

user

3:07 PM

Yeah

@hyper-neutrino That's a nightmare

hyper-neutrino

it somehow made sense for the use case though i do not remember that either

user

Dream stuff always makes sense within the dream, but not outside

I had a dream where I found a way to factor quartic equations using triangles and then I woke up, wrote it down, and realized it was utter bogus

Redwolf Programs

I once had a dream that my alarm clock didn't show the right time.

Sounds fine, until I woke up at 2:30 AM and forgot I had dreamed that

So I thought I was late and got dressed and ran downstairs

hyper-neutrino

i vaguely remembering there being some thing about an attack-defense-environment-someotherstuff... cycle so this might have been for video game stuff or smth??? ¯\_(ツ)_/¯

user

I remember having a dream where I thought to myself, "Is this a dream? Nah, too realistic" and it involved a flood where I double jumped my way out of the water

Dude coinheringaahing

3:11 PM

I've had dreams where I've dreamed that I've overslept and woke myself up from the panic :/

user

I always get dreams where I think I'm falling from somewhere and I wake up, still thinking I'm moving even though I'm right there

hyper-neutrino

my absolute favorite is when i have some stressful event the next day and then enact it in my dream so i wake up and realize "damn i haven't even actually done this yet" so my brain just gives me free stress

Dude coinheringaahing

@user About half of my dreams involve me realising its a dream halfway through :P

Redwolf Programs

I'll almost always start making minor corrections to my own dreams, deciding the plot's too boring and revising them, etc.

user

@Dudecoinheringaahing I am not that aware lol, I've only realized that a few times

@RedwolfPrograms Hey, me too!

Dude coinheringaahing

3:13 PM

@hyper-neutrino I dreamt I was sitting my math exam the day before I actually sat it (standard stuff) but managed to basically guess what one of the questions was in the dream on the actual exam :P

hyper-neutrino

o.O

Dude coinheringaahing

The exact numbers were off, but the problem was the same :P

user

That's amazing, dude

Dude coinheringaahing

Real shock of deja vu when I was sitting the exam :P

hyper-neutrino

i don't actually even dream all that often (well, ik you always have dreams, i just don't recall them) and i rarely manage to realize it's a dream during it

Dude coinheringaahing

3:14 PM

I can lucid dream by choice once I realise I'm dreaming. It's quite cool tbh

user

Noice

hyper-neutrino

if i could lucid dream i would write a program that works correctly first-try because that's an experience i'll never get

user

I've had dreams where, toward the end, I'm half aware it's a dream, and I start drawing it out by turning it scary and stuff (like if I'm at a picnic, everyone turns into zombies and stuff like that)

Dude coinheringaahing

in Jelly Hypertraining, Jul 1 at 22:40, by caird coinheringaahing

The nightmares are when you start dreaming of ways to golf your Jelly answers :P

user

@hyper-neutrino Not even Hello World?

Dude coinheringaahing

3:16 PM

I actually dreamt a golf to my Enigma machine, then woke up and it (basically) worked :P

user

Imagine having useful dreams

Dude coinheringaahing

Dreams are a really interesting thing to me :P

@user I mean, I've had a handful of interesting/useful dreams in my entire life, so they aren't that common :P

user

One of my dreams was an idea to make a robot whose wheels were like a ferris wheel, so they'd pick up balls as they turned. It was a JS idea

Dude coinheringaahing

@user That could be useful for driving ranges

hyper-neutrino

my dreams frequently end up having a suspiciously high amount of video-game related things incorporated into it which is a reflection of the fact that i have no life and play video games way too much

Dude coinheringaahing

3:19 PM

I think I remember dreaming about Dennis coming back and doing a "TIO update crunch" and just adding all the new languages/updates all at once

user

@Dudecoinheringaahing Well, the ball containers would hit the ground at some point, making it harder to turn. It might work slightly better on a soft golf course than on the thin carpets used for robotics competitions, but it's still a lot worse than having a ball picker-upper at the front or something that spins balls inwards, uses a conveyor belt, or vacuums them up

@hyper-neutrino That sounds almost like the title of an r/shittymoviedetails post for some reason

Dude coinheringaahing

@user Well, if you had the wheels deposit the balls into a separate storage place at the "top" of their revolution so that they're empty at the group

user

Then the robot would have to go backwards or smth

Dude coinheringaahing

@user "In HN's dreams, you can see a lot of video game references. This is a suble nod to the fact that HN has no life and plays video games too much" :P

Q: Take a square integer matrix A. Will the maximum absolute element of A^2 always be greater than or equal to the maximum absolute element of A?

user

@user Here's an image to confuse you further

Redwolf Programs

3:26 PM

What if you had some sort of gear thing to make one wheel between the front ones spin backward and be slightly smaller

hyper-neutrino

@Dudecoinheringaahing the square of [1 -1 ; 1 -1] is the zero matrix

a different question is, for any sq int matrix A such that there exists some sq int matrix B for which B^2=A, will there always exist one such sq int matrix whose maximum absolute element is <= A's max abs element

since the zero matrix also has [0 0 ; 0 0] as a square root

user

And the other way

@RedwolfPrograms Hmm, how would that work?

Redwolf Programs

@user What if you made it so the scoop was sort of "spring loaded" so it'd move into the wheel, deposit the ball into some mechanism inside, and pop back out?

That'd be a ton of work though

Dude coinheringaahing

@hyper-neutrino Hmm, that's interesting. I'm trying to verify my brute force answer to this, which generates all nxn matrices with elements chosen from -absmax(A) to absmax(A) (where absmax is the largest absolute element), and it still works for [0 0; 0 0] because it is its own square root

user

@RedwolfPrograms Yeah lol

We only have 6 weeks to make our robot, it's too hard

hyper-neutrino

3:30 PM

it isn't too hard to make the scoop deposit the ball at the top of the wheel

Redwolf Programs

Just put a machine gun on it and play to win

user

Wait, the scoop could actually be on the side of the wheel and not protrude beyond the wheel

@RedwolfPrograms I'm afraid we're only allowed to shoot balls and ~~bunnies~~, not bullets

Dude coinheringaahing

Yeah, I'm confused about why you're making this so complicated? There kind of wheel scoopers already exist :P

user

I guess my dream just made a worse version of them then :P

hyper-neutrino

just have the scoop run between a track made of two rods at the top, so the scoop passes through and the ball gets pushed onto the track

Redwolf Programs

3:32 PM

Have a giant spike and impale the balls

hyper-neutrino

just attach a vacuum to your robot ez

Dude coinheringaahing

Make the balls magnetic and have a giant electromagnet hovering above the range :P

user

@RedwolfPrograms Like this? :P

Redwolf Programs

Yes, exactly

Maybe an EMP could work too

Or a giant spring loaded hammer

user

That would kill the robot too

Crab-style

hyper-neutrino

3:35 PM

borrowing dude's idea, just get a really strong electromagnet and just make your robot have minimal metallic parts and use it to yeet the other robots

Dude coinheringaahing

Plastic robots are the way of the future :P

Redwolf Programs

When in doubt, yeet them out

hyper-neutrino

or just attach a bunch of blenders to the side of your bot and do the mega speed

Dude coinheringaahing

@hyper-neutrino Why would you want to do a bunch of rendering?

Redwolf Programs

Have it drive up alongside the others and steal their balls, so they're basically working for you

Have it disassmeble the competition and build one really big robot that grabs all the balls and delivers them to you

user

3:37 PM

Crab, but as a mad robot

Redwolf Programs

Have a really long telescoping arm on it, then make it move to the center of the arena and spin really fast

Dude coinheringaahing

We're overcomplicated it, just send a person out onto the range with body armour and a bucket to collect the balls :P

Redwolf Programs

Put blades on the edge of the arm

user

@Dudecoinheringaahing Mechanical Turk style!

The best way to defeat the snake is to cut off its head :P

@RedwolfPrograms I'd disassmeble the competition, but idk what that is

Redwolf Programs

Use GPT-3 to learn what components the competition uses, how to disassemble them, and how to use them to make a really cool robot thing

Like a master builder from the lego movie

user

3:43 PM

@RedwolfPrograms Pretty sure all their code is usually open source

And we mostly use the same basic motors

Okay, I promise this is my last drawing

pxeger

5:35 PM

tfw when you are about to file a bug report only to discover someone else filed and fixed it 2 days ago

user

Anyone know where to ask a question about software licenses?

Redwolf Programs

FOSS.SE probably

or whatever it's called

the open source one

user

(specifically, I want to ask about the difference between not having a license and using the WTFPL license)

Redwolf Programs

Not having a license means proprietary

So nobody can do anything at all with it

user

@RedwolfPrograms Thanks, found it (Open Source.SE)

Aaron Miller

5:38 PM

The difference is that one is objectively better.

user

@RedwolfPrograms Oh, didn't know that

pxeger

@user I wouldn't recommend using WTFPL unless it's for a totally throwaway project

user

I have lots of those :P

Redwolf Programs

Is there any problem with just using MIT?

pxeger

IIRC it can cause trademark/patent issues

user

5:39 PM

@RedwolfPrograms Nah, I was asking mostly out of academic curiousity

pxeger

and its wording is not very legal so it might cause all manner of other ones

@RedwolfPrograms yes: BSD is better

hyper-neutrino

oh btw @pxeger i've added a license to vyxal bot

forgot cuz I created an empty repo to commit local code initially

made it MIT as you suggested to match vyxal (also I usually use MIT anyway)

Newly Featured Posts

6:07 PM

17

Q: Output 2015 as QR code

Mission is simple. Just output number 2015 as QR code and write it to file named newyear.png in PNG format. Code must be valid any day, so maybe you shall not use current year. QR code as text looks like this: # # # # # # # # # # # # # # # # # # # # # # # #...

pxeger

6:51 PM

@hyper-neutrino haha np, the BSD comment was in jest anyway

user

7:08 PM

GPL IS BETTER!

Redwolf Programs

Too restrictive for small simple projects

Dude coinheringaahing

I prefer to use the "Do whatever you want with this code, so long as you credit me as the original creator" license :P

Redwolf Programs

Isn't that basically MIT? :p

Dude coinheringaahing

¯\_(ツ)_/¯

user

I prefer to use the "Do whatever you want with this code, so long as you credit me as the original creator, waive all rights to your code, give me any money you earn from it, and name your firstborn after me" :P

@RedwolfPrograms Original creator?

Redwolf Programs

7:11 PM

MIT does require a notice in the code, right?

I don't remember off the top of my head but it seems like that was part of it

user

Whoops *goes off to check code*

Dude coinheringaahing

Personally, I don't really care about money that people might make from my code. Programming is a hobby of mine, and I'm not interested in monetising my hobbies

user

No Jelly company then? :/

Redwolf Programs

I'd like to make money off my hobbies, but anyone who can find a way to make money off an interpreter for some garbage esolang I wrote three years ago fully deserves it :p

Dude coinheringaahing

@user In all seriousness, no :P

user

7:13 PM

I'd like ~~to make~~ money ~~off my hobbies, but anyone who can find a way to make money off an interpreter for some garbage esolang I wrote three years ago fully deserves it :p~~

pxeger

@RedwolfPrograms brb, gonna put invasive advertising on ATO

Dude coinheringaahing

I've found that monetising my hobbies is the easiest way to stop them from being my hobbies

user

@pxeger Joke's on you, I'll just use block them with uBlock

pxeger

@Dudecoinheringaahing words of wisdom

user

@Dudecoinheringaahing Imagine being able to monetize anything

Dude coinheringaahing

7:15 PM

@Dudecoinheringaahing That said, I would rather work doing something I enjoy rather than something I dislike. It's a fine line between a hobby and something I'd enjoy doing for work

user

19

Q: If a question is answered by a collective's article then what action should be taken?

None of the choices that jump to mind seem great: You could close the question as a duplicate (I suspect this may be the correct action but it is unintuitive to me) You could post a link to the article (though this would become a link-only answer) You could copy/paste the article content into an...

discussion collectives

Articles are so weird

pxeger

7:33 PM

Interesting hack to modify builtin types in Python

hyper-neutrino

wait you can do that?

oh, unfortunately that doesn't let you overwrite how operators work on built-in types :c

pxeger

~~no, even changing operator methods on user classes doesn't work after class creation because they're cached somewhere~~

huh, I stand corrected

@hyper-neutrino oh I think it's because operators on builtin types are not class members; they're slots in a C struct somewhere

You could probably use ctypes to overwrite the pointer to the add operator's real C implementation, but that would be awful

dzaima

@dzaima and another 30% speedup for gcc and 10% for clang by using computed gotos instead of a switch

Sandbox Posts

8:04 PM

0

A: Sandbox for Proposed Challenges

Pinpoint the typo! Task Write a program that finds the location of an error in its own code! The program itself must output either nothing or an empty string (or an appropriate equivalent in your language). Let n be the length of the program in bytes, which must be at least 2. For an integer k w...

user

Tags?

Dude coinheringaahing

self-referential

radiation-hardening

Dude coinheringaahing

8:26 PM

in CGCC Blog Chat, 1 min ago, by Dude coinheringaahing

First draft of "The history of PPCG and CGCC", only about halfway done

If anyone has any feedback on it so far, I welcome it :)

user

8:36 PM

Very interesting so far, can't wait to hear the rest

One minor typo: You said Goflscript instead of Golfscript

Dude coinheringaahing

Did you not know that we weren't originally a Code Golf site - we were supposed to be for Code Gofl, but people kept misspelling it as "Golf" so we switched :P

user

except muh pr plz

Dude coinheringaahing

status-completed :P

Although that's reminded me that I should be better with my linking formatting :P

user

Yeah, the numbers are a bit confusing

Dude coinheringaahing

Plus they make it more difficult to add links into the middle

I'm replacing them with [text][link-thing] and [link-thing]: url now

user

8:44 PM

I'm working on it rn, gimme a few minutes :)

Oh ok

Wait, why are there two Chris Jester-Young accounts?

Dude coinheringaahing

SO and CGCC

user

Ah

Dude coinheringaahing

I find it crazy that user 3 on most SE sites is an SE employee (typically balpha or David) except for here, where it's CJY :P

Seriously, go to any SE site's home page and add /u/3 to the end of the link. How many aren't SE employees/former employees? :P

user

I guess because CGCC was smaller and not that important

Dude coinheringaahing

No, u/2, u/4 and u/5 are all employees, CJY was just that quick

u/1 is deleted tho

user

8:52 PM

lol

hyper-neutrino

CJY is a former employee

Dude coinheringaahing

IIRC he got hired after CGCC launched

He wouldn't have been appointed mod if he was employed at SE

ಠ_ಠ I can't type this evening

user

What's so special about this evening?

hyper-neutrino

good point

guess he is just very fast then :p

Dude coinheringaahing

@user Worst weather we've had all year here :P

user

9:00 PM

That's saying something, considering the fact that you're in the UK :P

Dude coinheringaahing

Yeah, it's that bad :P

Although I do like heavy rain when I'm inside and warm

hyper-neutrino

yeah CJY was employed from march 2015 to december 2015 (source)

user

That was...short

Dude coinheringaahing

@hyper-neutrino ..how did you get that source? :P

hyper-neutrino

magic

Dude coinheringaahing

9:02 PM

@user Why he left SE

user

Mod powers or just I-have-no-life powers? :P

@Dudecoinheringaahing Oh nice

hyper-neutrino

someone linked it in TL lol.

now how they found it? ¯\_(ツ)_/¯

Dude coinheringaahing

> I decided not to run in the election

Hmm

hyper-neutrino

@user the first is a subset of the latter

if you search "chris jester young" you can find his linkedin, SO CV, etc

Dude coinheringaahing

@Dudecoinheringaahing I know for a fact that CJY nominated himself in the 2016 mod election

Wait actually, hang on

I can't remember if the deleted nominations were actually deleted after the nominees changed their mind or if they were saved and abandoned drafts

hyper-neutrino

9:06 PM

oh are drafts public even if never posted?

i mean, i suppose there is a reason SO warns me that content may become public even if never post, before i ask questions to SO itself

Dude coinheringaahing

Cause there were 11 candidates shown (including Mego's now removed one and 3 withdrawn nominations), but 19 posts in the SE database that are PostTypeId = 6 (mod nominations) from 2016

@hyper-neutrino I can't remember if there was a reported bug about that or not

Underslash

What does it mean for a string to partially match a regex vs fully match?

user

It means that it only matches a substring, and not the entire string iirc

Underslash

ohh, so if i wanted to check if a string fully matched another string, i could do "^" + regex + "$"?

user

Ye

Actually no

You would have to do ^(regex)$ because of |

Underslash

9:20 PM

ah

thanks

user

9:35 PM

Here's a poem about me:
https://tio.run/##TVTNbtU6EN77KYZuTiulPAAbBEVQBAskihBLJ57EbhzPwXZOlKfv/cY5ukWqKuXM2PP9jUu0xXN5eXnynJkkDUybLWRpLZzNby/HZ18krpXjTkkqqlG0/MhURWZ6@PLwQP1OpUpeOtNntnNIE9m4SKnEF856MC/GPAkNHLnPtuKw55DpnGXjUigk@jnYaM2n4EhQyw1EQRs6MLQPE03a8FMWYI3u/w6nJ9ZMOCNUvAyz@cPAGaPO2GmQNTpyB5kSKvV2mLUEzjY58mGhRU@ZJy/r5Nu17dYxoFx9KNSzt5cgmTbJORRAUP7aA0k86HZoUdag7joaJU/h0n7WCc8rhDhHC5IWbK@nB0k1pJUdQIfUml0oNYd@rXrVFoqTxTxA0PatOGRLNEkcdx00adk0tH/XMMwwKMMaWs/NlFOhbNNczCcGkfBqYHCYCcf0wkFi5KEGSSQjgLQDjyiMKMAa6NvbMuMAwOuBKUreza8EinVNVm/tqElQII4qXQSXTXBgQudbVZUpslXDMMK3u7lck7Yx92BaPaBRDCPT7ZO24K@…

rak1507

@Dudecoinheringaahing considering the domain no longer works I'm assuming it didn't go to plan :(

Redwolf Programs

@user That hurts my head...it's just close enough to rhyming (and having a consistent rhyme scheme) and/or having a good meter that it throws you off

Dude coinheringaahing

@rak1507 From his CV, looks like it only lasted 5 months

user

> just close enough to rhyming

> And to make this poem rhyme, I called up some guy named Lloyd

Dude coinheringaahing

> Definitely not aided by his collection of shanks

I think @user has a collection of shanks guys :P

user

9:38 PM

Shhhh! :P

CMC: Write a limerick involving code golf in some way

Codidact Posts

New Posts - Challenges - Code Golf: 99 Shortened Bottles of Beer

posted on August 05, 2021 by Mark Giraffe

This is a test release of the challenge onto the main category. If this doesn't feel like enough, we could always talk in the s...

Underslash

9:53 PM

i am disgusted in myself

i just wrote a 60 byte vyxal bruteforce

aaaaaaaaaaaa

rak1507

what challenge

Underslash

2

Q: Give the minimum Levenshtein distance to a string that matches the regex

Your task, at the moment that you choose to accept it, is to write a program that, when given a string and a PCRE-regex, calculates the minimum Levenshtein distance to another string that matches the regex (fully). All strings, as well as the regexes, should be in the Latin-1 character set. This ...

code-golf string regular-expression

i can def golf it by a lot

it just is awful the way i solved it

Dude coinheringaahing

Vyxal has PCRE regex?

Underslash

good question

does it make that much of a difference?

Redwolf Programs

The question specifies PCRE

Underslash

9:57 PM

well, then i just wont post the answer anyways

why specify the regex tho :(

Redwolf Programs

What makes it 60 bytes? Does Vyxal not have levenshtein distance?

Dude coinheringaahing

@Underslash Because either you specify an existing regex flavour, or you list the exact regex operations that need to be handled

Underslash

i mean, basically everything except lookaheads and lookbehinds are supported in every flavor right?

Dude coinheringaahing

The original version didn't limit it to PCRE, and got closed as lacking details

Underslash

:/

@RedwolfPrograms it does, but basically you have to have some manner of increasing the "difference" until you find a working thing, and the way I did it made that a pain

Redwolf Programs

10:01 PM

I can think of a way that would do it without too much work (or bytes), but it's a horrible double nested brute force that would almost certainly never finish for inputs higher than like three characters :p

Although I don't know that much Vyxal so it might be longer than I'd imagine

Dude coinheringaahing

Are Brendan and Emma's flairs right aligned for anyone else here (scroll down to the list of members in the PubPlat team)?

And are they the only right-aligned ones, if so?

Redwolf Programs

Nope, all left aligned here

Dude coinheringaahing

wtf, the profile just changed:

Redwolf Programs

Are you talking about the badge thing from yesterday?

Oh wait, the stuff under the name

Dude coinheringaahing

Yeah, it all got moved about

Redwolf Programs

10:04 PM

It's hard to tell what there's from the gradscript lol

I don't think I like it tbh

Dude coinheringaahing

I think only the green banner is there from the gradscript

Announcement on MSE just got posted - Profile Page Redesign

user

It's different for me too, it's not just the gradscript: i.stack.imgur.com/g4h62.png

Dude coinheringaahing

> We got rid of the “Apparently, this user prefers to keep an air of mystery about them”, instead showing no biography. If it’s your profile and you don’t have a biography, we have show a call to action to add one.

Redwolf Programs

> We got rid of the “Apparently, this user prefers to keep an air of mystery about them”

Dude coinheringaahing

Oh, that looks weirdly blank now

Redwolf Programs

10:09 PM

ninja'd

user

@Dudecoinheringaahing So many users' profiles' jokes are messed up now :/

Redwolf Programs

#s 6 and 7 I kind of disagree with

I liked the profile views and consecutive days things

user

@Dudecoinheringaahing Yeah, I wish they added something or at least moved up the badges

@RedwolfPrograms Moi aussi, I don't like this

Redwolf Programs

@user Does that translate to "my australian"?

Dude coinheringaahing

They kept "People Reached" - a metric that essentially means nothing - but removed "Profile Views"? ಠ_ಠ

user

10:11 PM

Non, ca c'est "mon Aussie" :P

@Dudecoinheringaahing You should ask them to remove that and add Profile Views back in then

@RedwolfPrograms (it means me too)

Redwolf Programs

^^

Dude coinheringaahing

@user ¯\_(ツ)_/¯ Feel free to. Apparently, a lot of people think it's a useful metric

Dude coinheringaahing

10:32 PM

If someone hasn't filled in their profile information, it just looks blank. Would it be feasible to move other information up instead? — user 18 mins ago

@user Post as an answer and get some free MSE rep :P

Redwolf Programs

10:44 PM

Wait...they removed last seen and account age?

Those are both very important and useful things to have on the profile page imo

Downvote time I think

exedraj

@RedwolfPrograms if it does, then frick.

Because that means I haven't been using it correctly lol

Redwolf Programs

I doubt anyone who chooses the MIT license is going to care either way on that though :p

exedraj

Well we sure haven't

Dang i need to go update Vyxal's license - it has the wrong year and my old username

Oh and yes: "
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software." (taken from the actual text)

Dude coinheringaahing

@Dudecoinheringaahing +7/-10 rip

Redwolf Programs

That's a 4:1 views:downvotes ratio lol

Dude coinheringaahing

10:51 PM

If they hadn't removed/made private some of the stats that were on the right, I'd have no real issues with it, as UI always changes. But I disagree with their reasoning for removing certain things and keeping others

Redwolf Programs

I dislike the appearance of the new one, but yeah the main thing I dislike is definitely the removal of some of those stats

Dude coinheringaahing

I usually have the opinion that UI changes will always piss established users off, until they get used to it. Then the next change will piss them off, until they get used to that. And so on, ad infinitum

Removing/hiding useful stats tho, that's something that is actually something that I can see a justified argument against