The Nineteenth Byte

Matthew Daniels

12:03 AM

how do you feel today?

I'm -> :)

lmao

hyper-neutrino

@cairdcoinheringaahing yeah, that was........ pain

caird coinheringaahing

Everytime lmao has been said in TNB

2

Matthew Daniels

@caird lmao

hyper-neutrino

8% Matthew

please stop monologuing here

→ 9 messages moved to Indonesian Gambling Spam

Matthew Daniels

okay, bye.

hyper-neutrino

12:09 AM

@cairdcoinheringaahing i wonder how many times i answered within the last, say, 24 hours or so right before the challenge would die :P

ngn

cmc: parity of a 3permutation, i.e. given a list consisting of 0,1,2 in any order, detect if it's in [[0,1,2],[1,2,0],[2,0,1]] or in [[2,1,0],[1,0,2],[0,2,1]]

(or the same with 1indexing)

Bubbler

J: C.!.2

hyper-neutrino

Jelly: =ṢE

if you sort the first set, either all or no elements are equal. if you sort the second set, exactly one element will be in the right spot

so this just checks equality (vectorized, pairwise) with itself sorted and determines if all elements are equal

Bubbler

That's clever

user

@ngn Scala: 0.to(5).map(_%3).sliding(3).toSet (true if in first set). 0 to 5 map(_%3)sliding 3 toSet if you're running an old version of Scala or if you're dumb and you have postfix operators enabled.

hyper-neutrino

12:24 AM

anyway, still need to implement equality, sorting, and all-eq in my language. so, can't really solve this right now (:

ngn

@hyper-neutrino is that what you meant yesterday for my cmc?

hyper-neutrino

@ngn no it isn't. my solution yesterday was wrong lol

i was checking invariance under sort

i didn't realize this trick until just now

caird coinheringaahing

@hyper-neutrino Pretty sure at one point you actually missed the deadline by a couple of hours but ¯\_(ツ)_/¯

ngn

ah ok :)

hyper-neutrino

@cairdcoinheringaahing oops. well shhhhhhhhhhhhhh :p

ngn

12:28 AM

@Bubbler interesting. this is mentioned in C.'s doc but not in !.'s

Bubbler

Huh. didn't notice that

New Sandboxed Posts

0

A: Sandbox for Proposed Challenges

1D monochrome Link-a-Pix solvability code-golf array-manipulation puzzle-solver decision-problem Background Link-a-Pix is a puzzle on a rectangular grid, where the objective is to reveal the hidden pixel art by the following rules: Connect two cells with number N with a line spanning N cells. Th...

Bubbler

It's also possible to solve by taking the difference of the first two mod 3 (or any two positions)

Or evaluate in base 2 and check if it is a perfect power (the first three give 4, 8, 9 while the others give 10, 6, 5)

hyper-neutrino

lol that's interesting

ngn

@Bubbler nice

Bubbler

12:39 AM

Equivalently, factorial base mod 3

Matthew Daniels

I'm bored. what to do?

Wasif

Sup

Good morning

Matthew Daniels

@Wasif good morning.

I was awake since 11 PM in my area.

Wasif

@MatthewDaniels what's the time there now

Matthew Daniels

8 am.

Jo King

12:43 AM

@MatthewDaniels do you mean like numeric input/output?

Matthew Daniels

what do you mean?

Wasif

I see you always post the questions you post to stack exchange sites to your own chatroom. You can use a chat bot to do this easier, it will be a fun exercise and remove your boredom

Matthew Daniels

my sandboxed challenge?

I don't know how to code in something with Stack Exchange API.

Jo King

the mathematical brainfuck in the comment i'm replying to

Wasif

@MatthewDaniels then go learn it

caird coinheringaahing

12:45 AM

@JoKing That was okie's idea (see a bit further up)

Matthew Daniels

@Wasif lmao

Jo King

oops

Matthew Daniels

@Jo I was doing some joke. lmao

@Wasif where can I?

hyper-neutrino

@MatthewDaniels api docs: api.stackexchange.com/docs

Matthew Daniels

ok.

rak1507

12:47 AM

Morning

Wasif

@rak1507 hi

Bubbler

When I think of "mathematical brainfuck", it sounds like BF but instead of two commands +-, you have a weird set of mathematical functions

Wasif

@MatthewDaniels also you need to learn just basic concepts, and rest do copy paste from the docs, hn has already given you the link

rak1507

what if brainfuck but APL :O

Matthew Daniels

where is the bit for chat?

Wasif

12:49 AM

Wdym by the "bit for chat"

Matthew Daniels

how I can get my bot to send the links to my room.

Wasif

@MatthewDaniels for that you instead of using API use things like Selenium instead

With python, Java or JS

Oh or C#

But C# is a pain

Matthew Daniels

yeah, this is hurting me too much.

caird coinheringaahing

@MatthewDaniels Use the SE API to track when you post a question. Then use a chatbot system to post that link into your room

Matthew Daniels

I'm just a basic programmer.

caird coinheringaahing

12:52 AM

chatbot.py here is a decent framework for bots written in Python

Wasif

Fetching answers/questions from API isn't that hard

Matthew Daniels

cries in the corner

Wasif

You can evaluate the json returned from the query and filter each key by ['owner']["display_name"]

Matthew Daniels

leaves because I'm tired of this

rak1507

might be a bit harder than what you've done before but it's worth doing to improve

no harm in trying anyway

caird coinheringaahing

12:57 AM

Idk even basic chatbots can be pretty fucking irritating, isn't that right @OldSandboxPosts?

I should've waited 3 minutes, to send that. OSP posts at the hour :P

rak1507

OSP's code is great

def ignore_msgs(*arguments):
        return None

lol

Jo King

don't functions return None by default?

rak1507

yes

caird coinheringaahing

Yeah, I just made an explicit ignore_msgs function that does nothing :P

rak1507

so there's no way to get a list of posts using the API? you have to manually scrape? oof

caird coinheringaahing

1:00 AM

I think there is, but the API documentation is so bad that I figured that HTML scraping works

OldSandboxPosts

Sandbox posts last active a week ago: Generate a UK number plate [code-golf] [string] [date] [random], Count up to 21, Solve the halting problem for \c^/\[^/\\\]*/\[^/\\\]*/\[^/\\\]*$c [code-golf] [halting-problem]

rak1507

@cairdcoinheringaahing lol

fairs

caird coinheringaahing

The API is really good at specific things, and not great at everything else

rak1507

hmmmm if I put something that matches the regexes (regices?) in a sandbox post in a comment/code/whatever will OSP match it?

and then screw up

caird coinheringaahing

Please, try to screw up it's regex parsing, it'll give me an excuse to improve it :P

hyper-neutrino

1:03 AM

how hard is it to prove that my BF sol is irreduceable lol

rak1507

as everyone knows, you can't parse html with regex ;)

that irreducible challenge seems like a dupe of irreducible hello world ngl

caird coinheringaahing

My recent challenge?

rak1507

yeah

caird coinheringaahing

The only thing they have in common is "irreducible"

rak1507

oh wait lmao no, it's lowest score wins not highest

nvm ignore me

hyper-neutrino

1:06 AM

anyway, decided against bf :p

rak1507

lol, 0 score

caird coinheringaahing

I would fid it very funny if it turns out that removing characters from the compressed string results in the same thing :p

hyper-neutrino

maybe i'll get a new username from trying to reduce it

rak1507

doesn't that mean HN's won already?

caird coinheringaahing

Only if HN doesn't post another answer

Besides challenges aren't exactly over after someone "wins"

hyper-neutrino

1:09 AM

what if i post another with 0 score

caird coinheringaahing

Then you'd have a score of 0

hyper-neutrino

wait, 0 + 0 = 0? :o

caird coinheringaahing

NMP is slow today

New Main Posts

1

Q: CGCC sings a song together

This is a code-shuffleboard answer-chaining challenge, where the answers will aim to, together, output the lyrics to this beloved 80s song. This is the full lyrics of the song, line by line. The first answer will contain a program that will output the first line of the song (We're no strangers t...

caird coinheringaahing

Well ok then

Jo King

1:12 AM

@hyper-neutrino i don't think it would be that hard, since all the .s are necessary so you'd have to check that manipulating the loops couldn't get you something similar that had possible differences

unfortunately your code isn't that golfed, so the search space is pretty big

hyper-neutrino

mhm, true. in any case, decided against it anyway

decided to actually compete

lol

although who knows, maybe removing the quotes magically produces a jelly program that happens to output this exact string. proving irreducability here is gonna be annoying :p

rak1507

so glad I don't have any exams today lol, nice to have a break

hyper-neutrino

wait, so some of the answers slots cannot possibly have 0 score?

caird coinheringaahing

Yes, unless you can have a floating point byte length

Jo King

clearly the right language for the question is PHP

Bubbler

1:15 AM

@hyper-neutrino Response to the comment: You know it is non-serious when you see this :P

hyper-neutrino

wh-

brainflak?

Bubbler

yes

hyper-neutrino

time to pull up flurry again

Jo King

well, at least it's irreducible

Bubbler

Provably irreducible, yes

rak1507

1:16 AM

two scores of 0 already lol

hyper-neutrino

who'll sacrifice their 0 score for the 5th line :P

Makonede

@hyper-neutrino about that edit you just made to the post, technically removing just the plus signs would work because in Python "foo""bar" evaluates to "foobar"

hyper-neutrino

wtf

caird coinheringaahing

There are lots of edits to that example that work :P

rak1507

maybe someone could get away with saying they have fractional bytes if they used sledgehammer or something like that

hyper-neutrino

1:17 AM

my bad. TIL ¯\_(ツ)_/¯

Makonede

yeah, it's funny

Jo King

@Makonede that always weirds me out

hyper-neutrino

i do not like this

caird coinheringaahing

It's useful for having a string across multiple lines

Makonede

i was thinking that too

i use it for the same purpose

hyper-neutrino

1:18 AM

i'd still rather just use +

Bubbler

But fractional bytes won't cut it because bits are 1/8 bytes but the score is at 1/10 units

rak1507

oh, good point

caird coinheringaahing

Also, we don't allow bit counts

Makonede

@cairdcoinheringaahing a benefit of that is that if the string isn't at the top level, escaping the newlines normally would keep the leading spaces on each line

hyper-neutrino

does "a" "b" + "c" "d" eval as "ab" + "cd" or "a" "bc" "d"

caird coinheringaahing

1:19 AM

Does it matter?

Makonede

@hyper-neutrino "ab" + "cd"

caird coinheringaahing

It'll be compiled to "abcd" anyway

Makonede

yeah

caird coinheringaahing

Meta discussion

hyper-neutrino

well yeah but

Makonede

1:19 AM

@cairdcoinheringaahing *evaluated

caird coinheringaahing

@Makonede No, compiled

The compiler will recognise that as a constant string and optimise it away as just "abcd"

Makonede

really?

hyper-neutrino

does python compile though

Makonede

interesting

caird coinheringaahing

At least, assuming the Python compiler is half-decent

hyper-neutrino

1:20 AM

i think "a" "b" would just become "ab" internally

Makonede

hyper's got a point

caird coinheringaahing

@hyper-neutrino Yes, you can get `.pyc1 files

Makonede

python doesn't really compile

well

sure

hyper-neutrino

then again python does have bytecode...

that's how the goto module works

Makonede

you can get python bytecode

yes

i guess it is compiled then

and than interpreted by c++

caird coinheringaahing

1:21 AM

> For the most part, Python is an interpreted language and not a compiled one, although compilation is a step

3

Compiles to bytecode, then interpreted

rak1507

@Makonede c not c++

ngn

c(++) doesn't interpret anything

Jo King

wait, it's not done by the mini-elves in my computer?

caird coinheringaahing

Yep, 'a' 'b' + 'c' 'd' is compiled to 'abcd'

Makonede

@rak1507 yeah

ngn

1:23 AM

@JoKing x86 is interpreted :)

Makonede

@ngn no, c interprets python, doesn't it?

caird coinheringaahing

@JoKing Pretty sure it's the fairies, not the elves

rak1507

weird, 2**64 gets constant optimised, 2**65+ doesn't

caird coinheringaahing

The elves are what makes the screen show colors

ngn

@Makonede c produces executable code directly, it doesn't have its own bytecode

rak1507

1:24 AM

@ngn the code that evaluates python bytecode is written in c

Makonede

huh

anyway gonna go now bye

rak1507

cya

caird coinheringaahing

@Makonede I'm not having a language index in the question, I've rolled back your edit

ngn

@rak1507 i know. but binaries produced by c are not interpreted by c. they run directly on the metal.

rak1507

@ngn yeah, that's not what Makonede was saying

caird coinheringaahing

1:27 AM

If someone wants to write a stack snippet similar to here, I'd be fine with that. But every time it gets edited, I get a notification, and I don't need twice the total notifications. Plus, you can (with a little effort) find out if your language has been used by looking at the answers

Makonede

alright sorry

my bad

caird coinheringaahing

No worries, just explaining :)

ngn

@rak1507 i was responding to this

rak1507

I know, but he was saying that python bytecode is interpreted, not that c itself is

Makonede

although IMO "123 score" doesn't makes that much sense, "score 123" or "123 points" is a bit more grammatically correct

@rak1507 yes

caird coinheringaahing

1:29 AM

@Makonede ¯\_(ツ)_/¯ I don't mind about that

Makonede

just sayin

caird coinheringaahing

If you want to edit it, I'd do it now, while there's only 3 answers :P

ngn

@rak1507 the mistakes was not in what is being interpreted but in who does the interpreting

Makonede

@cairdcoinheringaahing sure

lyxal

2:32 AM

oh hey okie is here

okie

@cairdcoinheringaahing Brainfuck, but with a bit more operator and use int(or float) instead of chr, still use cells, and one pointer only

@lyxal I am here :D

hyper-neutrino

2:49 AM

line 6 actually takes some brain cells

since the optimal code length is significantly longer than the line itself

wait nvm this isn't that hard i can just use a normal language with boilerplate

i guess i can save yuno to pull off some funny bs later on

lyxal

mmm I love it when metasmoke is down and the userscripts just show errors

hyper-neutrino

is line 6 even possible to do in optimal score

i mean you need an irreducable program

that outputs nothing

sounds like a job for java

lyxal

actually python

becuase you've been ninjad

hyper-neutrino

have i?

lyxal

2

A: CGCC sings a song together

6. Python 3, score 0 exit("Gotta make you understand") Try it online! exit("...") # trimmed program exit( ) # output... "..." # literal... exit( ) # to STDERR and exit with code 1

hyper-neutrino

2:53 AM

i meant line 7 then

lyxal

oh

hyper-neutrino

line 6 isn't nothing. i'm not smart

lyxal

correct

hyper-neutrino

line 13 is the next line that can be done with 0 score :/

lyxal

question: can I name parameters in a function call in Java like I can in python?

hyper-neutrino

2:55 AM

wdym by that

lyxal

e.g functionName(p1=value, p2=somethingElse)

hyper-neutrino

like kwargs?

don't believe so

lyxal

sad.

here's what I'm trying to do:

    String caio= getValidOption(choices=name,
    prompt="string",
    errorMessage="string");

hyper-neutrino

don't think that's possible

lyxal

sad.

hyper-neutrino

2:56 AM

you just need to use positional ¯\_(ツ)_/¯ rip

lyxal

ah well, I was trying for a neat bit of readability

hyper-neutrino

readability? with java? /s

lyxal

wanna see some really cursed java?

(String[])Arrays.asList(doctors).stream().map(doc -> doc.getName()).toArray()

hyper-neutrino

why bother using arrays in that case then lol

Matthew Daniels

hi.

lyxal

3:12 AM

Python has gotten me so used to calling it bool that I keep forgetting it's actually boolean in Java

Matthew Daniels

@lyxal C got me to that.

hyper-neutrino

i don't use bool often in python tho

but yeah it's annoying

Redwolf Programs

Oh nice, first time using my Ubuntu laptop since the font switchover and it turns out I already overrode the default font with Roboto :p

I was wondering why Ubuntu suddenly didn't suck and then I realized...of course it does!

Matthew Daniels

hey, who wants to talk with me in my room? kinda bored there. :P
I don't want to make any rambles here.

lyxal

@hyper-neutrino I was originally considering passing a lambda but decided it would be easier to just map a lambda instead

hyper-neutrino

3:17 AM

no i mean like if you keep it as a list

can'y you just do doctors.stream().map(Doctor::getName).collect(Collectors.toList());?

lyxal

no

private Doctor[] doctors

can't exactly call .stream() on an array now can I?

but I will steal that Doctor::getName part

that's good

        // -5 bytes thanks to [hyper-neutrino](chat.stackexchange.com/transcript/message/57961945#57961945)

hyper-neutrino

oh. well do you have to store it as an array?

lmao yes golf your assignment code

lyxal

@hyper-neutrino yeah, it has to be stored as an array. I'm just quickly converting it to a stream for the mapping

hyper-neutrino

rip

Redwolf Programs

4:06 AM

Honey bees are incredibly smart...it's almost like they were designed to compete in some sort of KotH

Maybe natural selection is just a controller, and we should be good bots and exterminate all of the other species

hyper-neutrino

4:35 AM

i don't like where this is going

Newly Featured Questions

20

Q: Print this Multiplication Table

Write shortest code to print the following Multiplication Table: 1×1=1 1×2=2 2×2=4 1×3=3 2×3=6 3×3=9 1×4=4 2×4=8 3×4=12 4×4=16 1×5=5 2×5=10 3×5=15 4×5=20 5×5=25 1×6=6 2×6=12 3×6=18 4×6=24 5×6=30 6×6=36 1×7=7 2×7=14 3×7=21 4×7=28 5×7=35 6×7=42 7×7=49 1×8=8 2×8=16 3×8=24 4×8=32 5×8=40 6×8...

code-golf kolmogorov-complexity

25

Q: Adding up the digits and the digits reversed

Given a number > 0, output the sum with all digits (1 .. n) concatenated and reversed and add them up. For example, with n = 6: The numbers 1 to 6 concatenated: 123456 Reversed: 654321 Adding them up together will result in: 777777. Another example is n = 11: 1 2 3 4 5 6 7 8 9 10 11 > 123...

code-golf math number sequence

lyxal

yes NFQ, well done for managing to completely mess up the order of the bountied questions

hyper-neutrino

lol. impressive

lyxal

it's completely missed razetime's bounties

hyper-neutrino

@NewlyFeaturedQuestions is this one not razetime's?

lyxal

4:46 AM

oh wait it is

Redwolf Programs

NFQ isn't like NMP; it knows it's going to be replaced, but instead of trying harder it just doesn't care anymore

lyxal

that's how screwed up the order is

hyper-neutrino

kekw

lyxal

@hyper-neutrino that makes us even now

I'm on 2 kekws and you're on 2 kekws

hyper-neutrino

well, if you don't count the message i sent about the chat search. or the message you just sent. only counting kekw in its real usage, and not meta-kekws

lyxal

4:47 AM

that's what i meant

Redwolf Programs

hehe that was a meta-meta-kekw

lyxal

wow SE/SE-related sites seem to have a habit of being unsecure today

first metasmoke, now cg is saying it's insecure

Redwolf Programs

Does CGCC feel insecure because it's different?

lyxal

no I think it might be because of the userscripts I got