The Nineteenth Byte

You must create a program that when given a user ID for SE, will output their rep on their strongest site (the one they have the most rep on). However, your program must work in two languages. In the first language, it must output their highest rep and in the second it must output their second h...

Phoenix

6:06 AM

@HyperNeutrino PST

It's not that late, but I have to get up at 5:30 tomorrow for school.

user165474

Ah. rip

user165474

I'm in EDT rip

user165474

Also what's with the sudden influx of api challenges?

Phoenix

Challenge-writers are inspired by other challenges?

user165474

Probably

Kenny Lau

6:16 AM

So, should I post the "does it contain a square" version or "count the number of squares" version?

and, sure, it's hard, until the 2D languages come over...

some day I'll post an n-dimensional challenge

user165474

D:

Phoenix

I think you might as well go for counting

user165474

I'd say go with count as well

Phoenix

It's hard enough that anyone working on it will need to put in significant effort, might as well go all the way.

Kenny Lau

CMC: is n a perfect square? (input: non-negative integer n)

user165474

6:19 AM

@KennyLau Jelly, 2 bytes: Æ²

Kenny Lau

@HyperNeutrino boring

user165474

lel

Jan Dvorak

->n{0==n**0.5%1}

user165474

Jelly, 4 bytes: ½=Æ½

user165474

Slightly less boring?

Kenny Lau

6:20 AM

alright

xnor

@HyperNeutrino I can say it here. If a triangle has area A, then all the points must be contained in the area 4A triangle obtained by drawing a parallel line to each of its edges that passes through the opposite vertex. This is because, for each edge, points on the other side of that parallel line form a triangle with it whose area is greater than A.

ASCII-only

@KennyLau Seems like Charcoal would actually be not bad at this

Kenny Lau

@ASCII-only we'll see.

python 3 doesn't have backticks :o

@ASCII-only Mathematica >_>

Adám

6:40 AM

@HyperNeutrino Dyalog just released a set of 10 APL challenges. So I'm posting some of them here (in adapted form).

@Phoenix Not really. Just the same people posting on two sites.

feersum

API, not APL.

Kenny Lau

@Arjun ?

Arjun

@LeakyNun One of my answers on your Transcendental question outputs the result as a String. Is that acceptable?

Leaky Nun

alright

Dennis

@HyperNeutrino Unlike Æ², that has floating point issues though.

Arjun

6:49 AM

Should I accept an answer on Does the start equal the end? challenge now? If not, then when?

feersum

No, don't accept.

Dennis

tio.run/nexus/jelly#@39or@3htkN7dYDEpv///xsaoAJDAA

Arjun

@feersum When should I, then?

feersum

What do you mean "when"? Don't accept at all.

Arjun

Never?

feersum

6:51 AM

Correct.

Leaky Nun

@Arjun It is your choice, really.

Dennis

@Arjun That is entirely up to you; some people never accepts answers. I usually wait 7 days.

Arjun

Okay.

feersum

There is no best answer because scores in different languages are incomparable.

Arjun

Is there a meta post on this topic?

ATaco

6:53 AM

I'm working on an Emoji Picker.

feersum

Please no

user165474

D:

Leaky Nun

Well, my username is back again.

user165474

@xnor Yup, that's the proof I had. :thumbs-up: What about the red/blue points one?

xnor

@HyperNeutrino I've already seen it proven so it wouldn't be fair for me to answer.

user165474

6:55 AM

True. Alright.

xnor

When I've told the problem to people, they usually came up with ugly but functional divide-and-conquer proofs

user165474

Yes. The extremal method proof is quite nice though.

Arjun

Is there any meta post concerned about having a separate threads for mainstream languages and golfing Langs (and Recreational Languages, if necessary)?

xnor

@HyperNeutrino You might like Kelly's proof of the Sylvester–Gallai theorem

user165474

Hm. Interesting theorem. I'll see if I can get a decently succinct proof first, then I'll read the proof.

Leaky Nun

6:58 AM

@HyperNeutrino are you studying maths in university?

user165474

... I'm in Grade 9 :)

Leaky Nun

oh, lol

user165474

But I did look over the year 1 linear algebra course in a small group and I'm learning year 3 group theory right now

Leaky Nun

that's nice

prove the cayley-hamilton theorem :p

user165474

So, technically, yes? I mean I go to my city's university to do it but I'm not a university student (though someone once thought I was)

user165474

7:00 AM

Okay i'll look at it and see if I can prove/understand it :P

New Main Posts

1

Q: Tell me, how many squares are there?

Given a non-empty 2D array consisting of 0 and 1, find the number of squares whose 4 corners are all 1. The squares do not need to be "upright". All the rows are guaranteed to have the same length. Reasonable input/output methods are allowed. Testcases: 0001000 1000000 0000000 0000100 0100000 ...

code-golf ascii-art

user165474

Eh nope I don't know stuff about rings :P

user165474

And I'm going to go to sleep now so I can actually wake up tomorrow morning :P Bye! o/

Leaky Nun

bye

Arjun

@HyperNeutrino Good night!

ASCII-only

7:37 AM

@LeakyNun ?

@HyperNeutrino :O what

@Downgoat Wait what does = UTF8View do

Destructible Lemon

7:54 AM

why did my message about being blue get stars

CMC: answer a main site question in Turtlèd

that isn't trivial (e.g. "Hello, world!, which btw I already did)

ASCII-only

@DestructibleLemon 0/10 how is that a CMC

Jan Dvorak

Chat: no. Mini: no. Challenge: no - more like a plea.

Destructible Lemon

8:09 AM

;_; you saw through my ruse

Qwerp-Derp

8:48 AM

Does anyone here know how to export every function in a file in JavaScript?

Using ES6?

Destructible Lemon

wtf I think I found a bug in the interpreter?

;_;

ASCII-only

@Qwerp-Derp you can't

Qwerp-Derp

@ASCII-only ?

ASCII-only

@Qwerp-Derp well not automatically

@Qwerp-Derp just write export before every function

Destructible Lemon

ARGH HOW COULD THIS HAPPEN?

Qwerp-Derp

8:51 AM

I just need to know how to use export statements in JS

@ASCII-only Are you serious?

ASCII-only

@Qwerp-Derp well only babel supports ES6 export atm though

Leaky Nun

@feersum I'm completely not getting you. Could you explain it to me?

ASCII-only

@Qwerp-Derp Or you can do export default {function1, function2, otherFunction}

Qwerp-Derp

@ASCII-only Would it be better if I just wrapped everything around a class?

But I have a bunch of prototype functions (which operate on arrays) in one file

ASCII-only

@Qwerp-Derp as in Array.prototype?

Qwerp-Derp

8:54 AM

@ASCII-only Yup

feersum

@LeakyNun So I'm saying you have 4 points on the perimeter of an axis-aligned square

ASCII-only

@Qwerp-Derp then no need to export at all

Destructible Lemon

ok this is a really weird bug

Qwerp-Derp

Technically I'm writing in CoffeeScript, but it should work still

@ASCII-only But it's in a separate file

feersum

And each distance along the perimeter from one to the next is equal.

Qwerp-Derp

8:54 AM

How do I get the prototype functions from another file?

ASCII-only

@Qwerp-Derp just import the other file?

Destructible Lemon

halp why is this happening

ASCII-only

@DestructibleLemon ... we can't help unless you tell us what's wrong

Destructible Lemon

ok so

I'll just get some links

Qwerp-Derp

Wait does import basically just get turned to require?

Destructible Lemon

8:56 AM

observe this

Try it online!

ASCII-only

@Qwerp-Derp yeah

flawr

@xnor Yes all of them=)

Leaky Nun

@feersum alright

Destructible Lemon

and put a '8 or something at the end to show where the turtle is

we can see the Turtle ends up on the one there, right?

Qwerp-Derp

So I changed it to require

And it still doesn't work for some reason

ASCII-only

8:57 AM

@Qwerp-Derp pls cloud9 tyvm

Qwerp-Derp

I'll post a Gist

Destructible Lemon

however, despite the fact that at the end it ends on a one, this loops forever

Try it online!

all that has been added is a {* } loop around the end code

and the insaner thing is is that when you add a '1 at the end, so it writes a 1 on a 1, it works properly

wtf

@ASCII-only is that enough explanation?

Qwerp-Derp

@ASCII-only Here's a gist

Destructible Lemon

wait a minute

ok it just got weirder

Qwerp-Derp

Eww also Github uses 8 spaces by default on a tab

Destructible Lemon

9:01 AM

apparently it works fine if there is a space just before the close curly bracket

ASCII-only

@Qwerp-Derp btw why not use Array::includes instead of contains

Destructible Lemon

how could this happen?

did someone curse me?

Leaky Nun

@feersum let's clear up our comments.

Destructible Lemon

ok so where in the interpreter does this happen

Qwerp-Derp

@ASCII-only Fixed

But the error still stands

I don't know why

feersum

9:03 AM

All righty

ASCII-only

@Qwerp-Derp as in the builtin prototype function Array::includes?

Destructible Lemon

ok this is just the weirdest thing ever

Qwerp-Derp

@ASCII-only Oh wait what

Destructible Lemon

I somehow made it that whitespace is significant

Qwerp-Derp

But JS messes up with arrays

It says [0, 1] !== [0, 1]

Destructible Lemon

9:04 AM

oh I see now

Qwerp-Derp

When I want it to say it's equal

Destructible Lemon

I made the classic off by one error

goddamnit

ASCII-only

@Qwerp-Derp oh yeah nvm

Destructible Lemon

    elif command=="}":
        command_counter-=1
        skipping=1
        while skipping:
            command_counter-=1
            if program[command_counter]== "}":
                skipping+=1
            elif program[command_counter][0]== "{":
                skipping-=1
        command_counter-=1

argh how could I have done this

brb fixing on github

ASCII-only

@Qwerp-Derp you're not testing in a REPL right?

Qwerp-Derp

9:07 AM

Nope

Destructible Lemon

huh. just found something in my code I don't get

oh wait I get it now

ASCII-only

@Qwerp-Derp can you gist transpiled coffeescript?

Destructible Lemon

@Dennis I fixed a bug in my Turtlèd interpreter please put this on tio?

ASCII-only

@DestructibleLemon 0/10 this is not how to parse anything

Destructible Lemon

yeah thanks pal

but what do you expect from a first lang anyway

ASCII-only

9:09 AM

@DestructibleLemon well Charcoal was my first lang

kinda

Destructible Lemon

first lang while still mostly sucking at programming and not doing any reading on parsing

yeah I don't know why I didn't think this was the reason the time complexity sucks

yeah I could fix it... but that would take effort

ASCII-only

@DestructibleLemon 0/10 if you don't like putting effort in, then why are you even at ppcg

Destructible Lemon

;_; y u do dis

;_; at least I made a lang don't I get points for that

Mayube

@DestructibleLemon yet you downvote me for not putting effort in ;-;

Destructible Lemon

;_; I already put effort in

good news! my fizz buzz program is nearly done!

and it isn't bugging anymore!

the userscript for ppcg has a kinda dumb link colour. how can I change it?

flawr

9:29 AM

@xnor Why did you think functions are acceptable als polynomials? We did not allow that anywhere

Destructible Lemon

Ok I just finished my fizz buzz program. if anyone wants me to link to it I will

> If anyone wants to abuse this by creating a language where the empty program prints Hello, World!, then congrats, they just paved the way for a very boring answer.

flawr

@xnor I now think you interpreted the upvote on this that you can use functions as representatiosn for polynomial. I thought since you started your title with beware that with that answer you wanted to exclude functions. Please clarify in that answer what you mean.

Destructible Lemon

\> someone does that

\> gets >300 upvotes

Qwerp-Derp

@ASCII-only DW, fixed now

Destructible Lemon

@ASCII-only think about what you just asked

also consider the previous description of this room

ASCII-only

9:46 AM

@Qwerp-Derp how did you fix it

@DestructibleLemon ?

@DestructibleLemon previous description?

Qwerp-Derp

@ASCII-only Turns out you have to do ./file.coffee instead of file.coffee for require

ASCII-only

@Qwerp-Derp oh yeah didn't see that lol

Destructible Lemon

@ASCII-only abandon all work ye who enter here

ASCII-only

@Qwerp-Derp import doesn't work?

Qwerp-Derp

Don't think so

ASCII-only

9:48 AM

@DestructibleLemon well only because this is PPCG and doing PPCG stiff isn't work

Qwerp-Derp

Nup, doesn't work

Alright everything works now yay

I'm making a Fraction class in CoffeeScript

Which is going successfully enough

ASCII-only

@Qwerp-Derp oh yeah because coffeescript doesn't have import at all

Qwerp-Derp

@ASCII-only CS is adding ES6 support though, so all of the statements should work soon enough

Christopher

10:07 AM

@SIGSEGV nope. I just like the comics

Christopher

10:28 AM

Why does the internet go to my sister? I mean I am trying to watch a 360p video and she is watching a 480p video and mine won't load yet I started first

TuxCopter

I have the same problem haha

Christopher

Internet bandwidth is biased to females confirmed

Jan Dvorak

You need a better routing table

Christopher

@JanDvorak But if we swap computers she will still win

Tried and true.

I always like to look back at my old messages and realize that I was a moron.

mınxomaτ

"Basic" telemetry...

feersum

10:46 AM

Well how is Microsoft supposed to improve their products if they don't know each byte you have written to RAM.

New Main Posts

11:12 AM

0

Q: Further golfing this C# code from Scramble words while preserving their outlines

I'll start off by saying I checked and checked again that this question should be on topic. I will also clearly state that this is a tips question about further golfing a certain set of code not a challenge. I recently answered the following challenge: Scramble words while preserving their...

code-golf tips

New Meta Posts

-2

Q: quality on questions

Quality on Question and Answer the quality of questions of this place codegolf not meet the standard because in each question is not seen when the function fail what to do. the result that almost all the answers are all incomplete toys

discussion challenge-quality

0

Q: Can I ask about improving golfing on some code

I have answered a challenge and the code ended up being longer than expected. I'm also pretty sure there is still room for golfing the code but I can't see it at the moment. Is it okay to ask a question asking for tips on how I can golf it here? Is that covered by this site or is there somewhere...

discussion support asking-questions

totallyhuman

^ huh

New Sandboxed Posts

0

A: Sandbox for Proposed Challenges

GottaFix for WannaCrypt Introduction I like to think programmers are inherently good people, even if some aren't so nice, so lets help people make sure they are protected with the MS17-010 patch. Challenge Your challenge is to write a full program or function that returns a truthy or falsey v...

Kritixi Lithos

@Fatalize In all honesty, I don't know how to prove transcendence

Fatalize

@KritixiLithos Well in that case I don't think your answer is valid as the challenge requires a provably transcendental number

We should ask @LeakyNun

Kritixi Lithos

11:19 AM

I will delete my answer until then

Fatalize

(btw you have "until it reaches" twice in your answer)

Kritixi Lithos

My number seems to follow the same-ish pattern as the "pick the first digit" answer

Fatalize

Maybe you can use the same arguments, I don't know

Kritixi Lithos

11:42 AM

Apparently setting the precision to 1000000 in dc and then calculating the square root of 2 breaks dc

or maybe it's in a long loop

Leaky Nun

@KritixiLithos look, I don't require you to prove that it is transcendental

just give a reference

Kritixi Lithos

I was searching for something on Mathematics when I saw that somebody said that If n is transcendental, n*n is too

Leaky Nun

@KritixiLithos you can ask me if you are not sure

that is true.

Kritixi Lithos

So, I tried taking the square root of my number, but dc borked

Leaky Nun

what is your number?

Kritixi Lithos

11:47 AM

The output of this program is my number: Try it online!

and add a decimal point at the beginning

Leaky Nun

@KritixiLithos how is it generated?

I see.

[[9, '1'], [90, '2'], [900, '3'], [9000, '4'], [1, '5']]

Kritixi Lithos

9|⍴ => length of the stringified number modded with 9

Leaky Nun

why 9?

Kritixi Lithos

it's golfier than 10

feersum

This Python import thing just keeps getting worse.

I thought I had found a solution, but it turns out it's importing the same file multiple times.

Leaky Nun

11:50 AM

@KritixiLithos let me think about it for a while.

Kritixi Lithos

maybe 2|⍴ could be a more familiar number

Leaky Nun

indeed.

@KritixiLithos the 2 version is transcendental.

Kritixi Lithos

proof?

Leaky Nun

you can express it as an alternating series of 2^-n with the n growing very fast

the growth rate is O(10^n) approximately

so it is a Liouville number

Kritixi Lithos

So it would be okay if I just state that it is a Liouville number?

Leaky Nun

11:59 AM

actually you need to multiply by 9 before using my proof

state "it multiplied by 9 gives a Liouville number"

then it's ok

user165474

@ASCII-only Heh were you surprised that I'm only in grade 9?

Beta Decay

12:18 PM

Why does this have three close votes? I wouldn't say it's particularly unclear..

17

Q: Name the Hadrons

Challenge Given a quark composition of a particle as input, output the corresponding hadron's name. Quarks will be represented by a capital letter and antiquarks by a lowercase letter. The quarks may be in any order, not necessarily the order given below. Built-in functions the access data ab...

code-golf kolmogorov-complexity physics

user165474

Oh eh what? Seems perfectly clear...

user165474

I mean it's just a lookup table...

New Main Posts

0

Q: KOTH: Hit and Sunk

Introduction For my 5th KOTH, I present to you a challenge based on the well-known game Battleship with a few twists. You'll only command one ship, whose type you'll be able to select between the 5 "traditionnal" classes, but you'll be able to undertake multiple actions each turn, including movi...

king-of-the-hill

ASCII-only

12:46 PM

@LeakyNun ?

Leaky Nun

@ASCII-only nothing

ASCII-only

@HyperNeutrino no i was surprised at the maths you were doing

user165474

Ah I see.

user165474

Many people think I'm older than I actually am (I mean when they see me IRL) :P

ASCII-only

@HyperNeutrino oh btw is there a reason why your avatar is not a neutrino

user165474

12:49 PM

Eh not really

ASCII-only

@LeakyNun Mathematica doesn't have a builtin for everything

Leaky Nun

@ASCII-only that is blasphemy

user165474

I just like the benzene better

ASCII-only

I mean, there are a lot of cellular automaton builtins though because it's one of the fields Stephen Wolfram likes

New Main Posts

4

Q: Mow a Rectangular Lawn

A lawn is defined as a rectangular field with of one character surrounded by two layers of visible whitespace. This means two lines above and twos lines below, and a two space padding on the left (the right has visible whitespace, so you do not need to include it). ||||| ||||| ||||...

code-golf ascii-art kolmogorov-complexity animation

0

Q: specific arguments for geocoder in googlemaps

import geocoder g = geocoder.google([self.getLatitude(), self.getLongitude()], method = 'reverse') return g.street + " " + g.housenumber + ", " + g.postal + " " + g.city + ", " + g.country So I have this code and my problem is, that I can't find any arguments that specify my choosen languag...

python

Leaky Nun

1:04 PM

For the love of God, please will you people stop posting the same boring solution "first digit of input". — Leaky Nun just now

Erik the Outgolfer

@LeakyNun code-golf bro

Nathan Merrill

yep. You can't fight the economics of code-golf. Shortest always wins :)

Leaky Nun

I'm very disappointed at you people.

Kritixi Lithos

that reminds me, I undeleted my submission

Leaky Nun

@WheatWizard why did you delete your answer?

New Main Posts

1:10 PM

2

Q: Snowball Fight KoTH!

The Game This is a very simple KoTH game. It's a one-on-one snowball fight. You have a container that can hold up to k snowballs. You can duck up to j times. Each turn, both players are asked to simultaneously give a choice for what move to make. There are three moves: reload: gives you anothe...

king-of-the-hill

Erik the Outgolfer

@LeakyNun why? code-golf normally uses the shortest possible stuff to solve a challenge and that's what I and others have posted (note: your challenge isn't the only one to suffer from this problem)

Kritixi Lithos

In reality, I could have posted a 1 byte Dyalog submission following the Pyth answer

It would just be ⊃

Leaky Nun

@EriktheOutgolfer your choice.

Kritixi Lithos

@HyperNeutrino How do we test our bots?

Fatalize

@KritixiLithos Well that's a pretty neat proof

Kritixi Lithos

1:14 PM

Leaky helped me with it

ASCII-only

Charcoal, 24 bytes (non-hacky)

Kritixi Lithos

Ah, digits of pi

PhiNotPi

:/

(^was a joke) So I'm gonna work on some of these recent KOTHs, and I guess I'm gonna write my own controller to test my bots?

Leaky Nun

Learn Esperanto, and then translate it yourself into Esperanto, and then ask, in Esperanto, for an Esperantist whose native language is English to translate it into English. But again, maybe in some other forum, such as Esperanto Stack Exchange. — EsperantoSpeaker1 2 days ago

user165474

@KritixiLithos Ehhhh right I forgot that I need to write the executioner before posting... whoops... I should be able to finish by the end of this week at the latest.

user165474

1:27 PM

I mean it's not a difficult KoTH to implement, no fancy 2D grid stuff, so I might be able to finish in lik half an hour.

Nathan Merrill

@HyperNeutrino 20 minutes with KoTHComm :)

user165474

Ooo

Leaky Nun

@ASCII-only is ＵＧ a function?

Kritixi Lithos

Doesn't KoTHComm only take Java submissions?

user165474