The Nineteenth Byte

Lyxal

4:00 PM

I recently moved to America to avoid being drafted into the war on emus

caird coinheringaahing

@Wasif How are you measuring chat activity?

Wasif

@cairdcoinheringaahing weekly stats

caird coinheringaahing

@Wasif This week Redwolf's posted 1.3k messages, I've posted 1.1k and Lyxal's posted 1k

Wasif

Hmm... Currently Lyxal dropped from 1.2k to 1k msg per week???

An hour ago Lyxal was 1.2k

Razetime

THAT IS INSANE

Lyxal

4:02 PM

@Wasif Stop digging, or else...

Lyxal

@Lyxal what no

i'm in australia

Lyxal

Australia can hold more than two people at once

caird coinheringaahing

@cairdcoinheringaahing My mistake, user (currently Lyxal) has posted 1k, Lyxal (currently user) has posted 779

Lyxal

I need to shut up

Wasif

I am waiting when user will come back from Australia

hyper-neutrino

4:10 PM

okay this is causing too much clutter in chat and too much confusion; i'm going to revert everyone back to who they actually are

Lyxal

:(

Redwolf Programs

I kind of agree, the pfps were funny but this is just confusing

hyper-neutrino

@Lyxal Since I can't upload pictures when editing your profile, I've reverted you to your own identicon; in case you need it, I have a link to your old PFP here.

caird coinheringaahing

@hyper-neutrino mod abuse!! eleven!! :P

hyper-neutrino

brb changing pfp to an 11

caird coinheringaahing

4:12 PM

(Seriously tho, thanks, it was getting a bit out of hand)

Redwolf Programs

Okay from now on we pretend this whole thing never happened got it :P

hyper-neutrino

what whole thing?

2

user

Yeah

Redwolf Programs

Not sure, I have this faint recollection we were talking about something

user

Yes, the brain tends to block out painful memories

caird coinheringaahing

4:13 PM

So, the system doesn't remove synonym tags, even if they're on 0 questions

Redwolf Programs

That's half the point of synonyms right?

caird coinheringaahing

Instead, it allows them to clog up the last page of tags when sorting by popular

user

How do you delete them, then?

caird coinheringaahing

You can delete them by getting a mod to merge them

hyper-neutrino

you merge them without synonym and wait until 3AM UTC

i don't know if i can unsynonymize tags

Wasif

4:14 PM

To completely remove memories delete TNB hell chat room
Now don't ask what TNB hell chat room is

caird coinheringaahing

@RedwolfPrograms For commonly used ones, yeah, but how often do you think someone's going to tag a king-of-the-hill with koth

Redwolf Programs

True

caird coinheringaahing

I might write up a merge request at some point with some of the tags that there's no point keeping as synonyms

user

Anyone know how to decompress a sparse matrix?

hyper-neutrino

@user wouldn't the compressed form be [[5, 8, 3, 6], [1, 1, 2, 3], [0, 1, 2, 1]]?

user

4:18 PM

idk

IA starts with a 0 I think

Redwolf Programs

Ugh I do not feel like working on Ash right now

But I've barely written anything in the last three weeks

user

This is me doing homework

hyper-neutrino

i have demonstrated stupidity

i cannot read

user

HN's editing my messages stop the mod abse!111!

hyper-neutrino

status-norepro

user

4:23 PM

:P

hyper-neutrino

it's impossible to decompress the compressed form you gave into the matrix in your example without having the intended size of the end result as input

at least, you need the number of columns

user

Oh right

caird coinheringaahing

Anyone got a link to the Code of Conduct? I can't find any links in the site footer

Wasif

codegolf.stackexchange.com/help/conduct

caird coinheringaahing

@Wasif Thanks!

Wasif

4:34 PM

welcome

hyper-neutrino

4:46 PM

any suggestions for a name for a tree-based esolang? (not a golfing lang, but not as tarpit-y as BF or flak)

caird coinheringaahing

Branch?

rak1507

easy treesy

user

Monkey business

TREE (Tree related easy esolang)

rak1507

treesolang

Redwolf Programs

Epiphyte

hyper-neutrino

4:47 PM

treesolang is taken

user

What else is unique about it?

hyper-neutrino

i like the recursive acronym :P

the data manipulation is inspired by AVL trees' self-balancing mechanism so you can rotate the data around nodes

rak1507

it's not recursive because 'tree' in the name isn't TREE

hyper-neutrino

oh true

user

Yeah, I wasn't thinking about a recursive acronym, but you can make it one

Upside-down trees?

Wasif

4:49 PM

Please give a name suggestion for a stack based esolang

hyper-neutrino

i think i'll go with branch. thanks everyone :D

caird coinheringaahing

Stack

Wasif

I cannot think any good name

caird coinheringaahing

@hyper-neutrino \o/

user

@Wasif Stacks

Wezl

4:50 PM

@Wasif Stack Exchange, but it's already taken

user

@Wezl :)

Wasif

@cairdcoinheringaahing What? There is no language named Stack lol

@user Stax would be cooler, but it is taken

user

Stackdogs

caird coinheringaahing

I do quite like why Stack Cats is called that :P

hyper-neutrino

stackcats is a really cool idea lol, i have no idea how to do anything in it though

user

4:52 PM

It doesn't even have to do with cats

caird coinheringaahing

But it;s palindromic

user

Yeah

caird coinheringaahing

stackcats

Wasif

Then why it is related with cats

user

stackrelateddetalerkcats

caird coinheringaahing

4:53 PM

The language is based around programs being palindromic, and stack based, so stackcats. Add in a space and some capitalisation to give it a better name

Wasif

How about Stack [fill_name_of_animal_here]

user

Stack humans, because humans are my favorite animal (also my least favorite)

Wasif

Stack Homo sapiens

Wezl

@Wasif because cats reversed is stac

Wasif

Didn't knew it.....

Then the name should be "stac cats" instead

user

4:56 PM

But it has to include "stack", so it's stackcats

stack kcats

.-.

.- -.

Here's my personal name generator in python: print(list(map(lambda x:''.join(x)[:-1]+'x',list(permutations('stack')))))

Say which is the coolest

hyper-neutrino

@Wasif I am removing this answer as per our policy for handling invalid submissions, since permutations is not defined in standard Python and you must include the bytes for importing that function from the itertools module. Feel free to edit to a valid solution and flag for undeletion.

(/s)

also BTW you don't need to list() the permutations result because map accepts any iterable

Wasif

5:08 PM

@hyper-neutrino which answer

hyper-neutrino

@Wasif your code (in your chat message) (it was just a joke since you didn't have import itertools/permutations in your message)

Wasif

I can no longer edit the message

hyper-neutrino

don't worry about it i simply made a joke, you didn't do anything wrong

user

5:41 PM

@Wasif The "/s" indicates HN was joking

caird coinheringaahing

5:57 PM

@Wasif Stack Cats is actually a really interesting language, and the language name works of the central premise. Essentially every program is an odd number of characters, where the second half is a visual reflection of the first half (e.g Wv\<*>/vW). The commands in the second half deliberately undo what was done in the first half, so the program boils down to finding a central character which changes the behaviour of the program

Essentially all the commands that are visually palindromic (e.g. *, ^, +) are self-inverse, and all "reflected" characters ([], \/ etc.) are inverses of each other

Programming in it is highly non-trivial, and most submissions in it use brute-force, or the (...)*(...) construct which only executes the contents of the second bracket. There's a +1100 deadlinesless bounty for figuring out how to code non-trivial programs in it, that don't use the above construct

hyper-neutrino

this strongly reminds me of matrix conjugates in linalg

Wezl

7:13 PM

Apr 12 at 17:52, by Wezl

What's a good high-performance fungeoid I should use in my next project?

anyone wanna make a high-performance fungeoid?

Redwolf Programs

I've probably spent half an hour on google streetview following a power line in rural colorado and I still haven't managed to find a substation

rak1507

...why?

pxeger

fishing for chat stars, probably

2

user

@Wezl Sure

Redwolf Programs

I've always wanted to find a power station by following a normal low voltage one power line and following it all the way to the source

Wezl

7:18 PM

not exactly sure how to start, though

user

Learn C, maybe

hyper-neutrino

i'm implementing rotations (the same ones AVL trees use for rebalancing) in my esolang; what should a left rotation do if the node is its parent's left child or right rotation as a right child?

Wezl

well I guess designing it

rak1507

@RedwolfPrograms bit of a weird thing to have always wanted to do, but you do you

Wezl

@user that was the first language I learned. Unfortunately, I don't have that much experience though.

user

7:20 PM

Oh cool

hyper-neutrino

i know a bit of C (using it for an esolang right now, and wrote some things for CS146 in it) so i might be able to help but idk if i know more than you lol

user

I sometimes wish I'd learned a language like C++ first to get a knowledge of low-level stuff

Wezl

If anyone's interested in collaboration, I can make a chat room

Redwolf Programs

I know a little bit of C

Wezl

@RedwolfPrograms should I take that as a "yes, I wanna learn too"?

Redwolf Programs

7:22 PM

No, just a "I also know a little bit of C but I forgot the context for somebody saying they knew it"

Unrelated String

i feel like c is way better to start with than c++ even if c++ is more generally useful because c++ is also c++

user

Fair enough

C is a lot "simpler"

pxeger

I think C++ is better to learn because, if you restrict yourself to only the modern good parts, then it's modern and good

Whereas literally none of C is modern or good

rak1507

@pxeger what modern and good parts

Manish Kundu

hey, can I get some feedback on this challenge codegolf.meta.stackexchange.com/a/22110/77516 ; i literally cant tell if the challenge is even interesting :<

rak1507

7:24 PM

seems decent

Wezl

Is it possible to change a room name later after creation?

pxeger

do bounties count against the rep cap?

user

Yeah

caird coinheringaahing

Yes

user

@pxeger No

caird coinheringaahing

7:24 PM

@pxeger No

rak1507

you should probably clarify if you can replace the leftmost digit with a 0 @ManishKundu

so can 123 become 23

Unrelated String

might want to clarify whether or not you can replace a leading digit with 0

...yeah

user

@pxeger If they did, 500 rep bounties would be useless

caird coinheringaahing

Full of ninja's :P

rak1507

full of extra apostrophe's too :P

user

7:25 PM

2 days ago, by Wezl

wow all these ninjas

pxeger

@cairdcoinheringaahing then why do they count towards the Mortarboard, Epic, and Legendary badges?

Manish Kundu

oh right i'll mention that then, I just kept a case like that in the examples before

caird coinheringaahing

@pxeger The max rep you can get in a day (not counting repeated events cause then it's infinite) is +717

Wezl

@user please note that message was ninja'd by user

caird coinheringaahing

> Earn 200 daily reputation 50 times

user

7:26 PM

@Wezl :)

caird coinheringaahing

It doesn't say "Hit the reputation cap 50 times"

pxeger

@cairdcoinheringaahing it says "Earn at least 200 reputation (the daily maximum) in a single day"

user

I also ninja'd a couple other people

@cairdcoinheringaahing Wait I got over 1200 once

From Bubbler's bounties

caird coinheringaahing

@pxeger Even more interestingly: I awarded a +500 bounty (so a gross loss of 500), then got +200 from upvotes (net loss of -300) and it counted towards Epic

@user "not counting repeated events cause then it's infinite"

Wezl

@Wezl created, even though the dialog said it might be a duplicate of ash :)

pxeger

7:27 PM

@cairdcoinheringaahing where's the 17 come from?

caird coinheringaahing

Assuming you hit +200 repcap (say 20 upvotes on different posts), +500 bounty awarded, accept an answer and get an answer accepted

user

@cairdcoinheringaahing Oh

caird coinheringaahing

@pxeger Yeah, Mortarboard's a weird one in phrasing

@pxeger +15 from having an accepted answer, +2 from accepting an answer

Although, if you also count edits, then you can get 719

pxeger

so they don't count towards the rep cap either?

caird coinheringaahing

@pxeger Nope

Rep earned from upvotes and edits only is subject to the cap

pxeger

7:29 PM

So the rep cap should just be called the upvote cap

caird coinheringaahing

@pxeger But that could get confused with the 30/40 votes per day cap

pxeger

oh ok fair enough

caird coinheringaahing

@user IIRC Jon Skeet once hit +5000 in a day or something crazy

user

lol

Then, again it's Jon Skeet

pxeger

The most rep Jon Skeet has ever earnt in a day is the last 4 digits of pi

user

7:32 PM

Jon Skeet could probably reverse the digits of pi using a GOL program

caird coinheringaahing

I stand corrected. The most Jon Skeet's ever gotten in a day is +871 on Mar 9 2012

user

Ha, I beat Jon Skeet at something :P

hyper-neutrino

@cairdcoinheringaahing wow, and he didn't even get a +500 bounty o.O

caird coinheringaahing

This dude made +1230 in a day once

Didn't even repcap

Unrelated String

wow

user

7:36 PM

That user had a huge spike in 3 months

caird coinheringaahing

The last time Jon Skeet didn't hit the repcap was Feb 14th (only got +160)

Manish Kundu

meanwhile me who never even hit the daily cap ;-;

caird coinheringaahing

O.o On his first day on SO, all the way back on Sep 26th 2008, Jon Skeet repcapped

Manish Kundu

guy is a legend

caird coinheringaahing

In fact, as far as I can tell, he went a solid 5 years hitting the repcap every single day from 2011 to 2016

user

7:40 PM

o.O

Unrelated String

wow

caird coinheringaahing

If Legendary was changed to "repcap 150 days in a row", he'd have it at least 12 times before 2017

rak1507

@user ∘.○

user

@rak1507 ⍤

caird coinheringaahing

Jon Skeet has more Great Answer badges than you have badges

Jon Skeet has more Nice Answer badges than a lot of you have reputation (anyone with <8.2k)

Jon Skeet has more badges than you have reputation (anyone with <18.4k)

somebody

7:44 PM

don't you hate when your cgcc account just doesn't exist

@cairdcoinheringaahing 2 +500 bounties (and one +50) in one day...

hyper-neutrino

@somebody ?

somebody

reparenting to cgcc user just

doesn't work properly

hyper-neutrino

wack

somebody

either that or my cache is broken

hyper-neutrino

i've refreshed your profile again, it now looks right on my end lol

caird coinheringaahing

7:47 PM

You know how exactly 3 users have gotten the Steward badge here (complete 1000 reviews in a single queue)? How in the hell did this dude hit 100k?

user

The author of that is the legendary voter gnat

New Main Posts

9:24 PM

0

Q: How hyperperfect am I?

A \$k\$-hyperperfect number is a natural number \$n \ge 1\$ such that $$n = 1 + k(\sigma(n) − n − 1)$$ where \$\sigma(n)\$ is the sum of the divisors of \$n\$. Note that \$\sigma(n) - n\$ is the proper divisor sum of \$n\$. The sequence of \$k\$-hyperperfect numbers begins $$6, 21, 28, 301, 325, ...

rak1507

@cairdcoinheringaahing idk if my answer is valid please can you do jelly magic to check all the inputs

I have no idea how to do that I just threw together things until it worked

caird coinheringaahing

Yeah, looks valid to me

rak1507

yay

caird coinheringaahing

Can't believe I forgot about division :/

rak1507

lmfao

there's probably a shorter solution

I just don't know how jelly worked and wanted to FGITW :P

Wezl

9:29 PM

I so hope someone makes brownie points redeemable for brownies

5

rak1507

it should be something like Æṣ÷⍥’ where ⍥ is over in APL

or not quite

caird coinheringaahing

@rak1507 Test suite for all test cases

rak1507

I'm sure there's a 5

:Æṣ’$ seems to give the right results for the test cases but not sure if it's provably correct

It is!

caird coinheringaahing

So long as n doesn't equal 1, floor(x / n) = (x - 1) / n (if x-1 is divisible by n), and n = Æṣ’ equals 1 if Æṣ equals 2, which it can never do as it's always 1 + something where something != 1

So yes, it's valid

Fun fact, Æṣ has only been used in 10 answers (no counting any posted after the 11th)

rak1507

9:46 PM

can :Æṣ’$ be done without the $ somehow?

I don't really understand jelly

caird coinheringaahing

@rak1507 Æṣ’:@ works, but it still 5 bytes

rak1507

yeah, I had that one

oh well

feels like :@ and ÷@ would be good one byters

caird coinheringaahing

Between them, they're only used 22 times in Jelly answers

rak1507

that can't measure how many times they could save a byte though

caird coinheringaahing

No, but it gives a good indicator

rak1507

9:49 PM

fair enough

Redwolf Programs

10:07 PM

I thought I was near the end of a homework assignment and I'm still less than halfway finished :/

rak1507

oof

Lyxal

@hyper-neutrino [Bernie sanders standing on the street during the fund-raising period] I am once again asking for a profile refresh

Wezl

Hi real lyxal

Redwolf Programs

> I am once again asking for your moderation support

Lyxal

@Wezl yes.

Redwolf Programs

10:10 PM

I actually kind of like your identicon

Wezl

are you interested in the future of funges?

Redwolf Programs

It's too spiky though, which is a pretty consistent issue with the SE ones

Is there a way to simplify ln(x / 2)?

I honestly can't remember

It'd be ln(x) - 2, right?

No wait

Lyxal

@RedwolfPrograms ln(x) - ln(2) iirc

Redwolf Programs

Oh turns out the issue was I didn't put parentheses after ln :|

Lyxal

Aww se chat bio isn't long enough to fit the entirety of this week's meme

So I'll finish it here

call up Sean Hannity, it's a bold strategy, inside our galaxy. We're snapping back to reality, oh there goes gravity, mom's spaghetti

@hyper-neutrino but seriously tho may I have a pfp hard refresh?

Redwolf Programs

10:22 PM

I don't know why SE identicons are spiky (other than extra entropy)

They also tend to be ugly colors

Lyxal

Yes

I would much prefer the funny word than the identicon I used back when I had little rep

Redwolf Programs

no idea why a horizontally symmetrical 7×7 or 9×9 grid with a preselected saturation and lightness and a random hue wouldn't work, and those look good

Wezl

@Lyxal here use mine :)

Lyxal

There's no use if the chat doesn't actually update the pictures

Redwolf Programs

10:35 PM

Finally finished my math homework. Time to learn me a haskell (for great good).

rak1507

:O nice

hyper-neutrino

I have once again hard refreshed a user profile.

enjoy your funny words, magic man

Lyxal

Heck yeah

hyper-neutrino

"heck"? who are you and what did you do with lyxal

Lyxal

Wait hang on

Frick yeah

@hyper-neutrino that's when I have to follow scratch tos

hyper-neutrino

10:37 PM

ah

Redwolf Programs

I don't like bountying challenges like hello world because I get notified of new answers, and for a brief second I'm unsure if I'm still redwolf or if I'm actually an experiment by a super high rep long time user and the entire life I thought I knew was simulated in GoL for fun

Lyxal

You're not any of those things

You're redwolf

Get it right or don't bother asserting identities

@RedwolfPrograms it's time to update your chat bio

Redwolf Programs

But I like my compressed rickroll :p

ASCII-only

@RedwolfPrograms hmm

Lyxal

sad

user