The Nineteenth Byte

zyabin101

2:00 PM

@Geobits Okay, so I don't post the challenge. ;_;

Geobits

Post it if you like. I don't know which way it will be voted.

zyabin101

Okay. So I do post it :D

Geobits

But if you want feedback, it's good practice to at least acknowledge the feedback you've already gotten.

zyabin101

Okay, so I don't. ;_;

DJMcMayhem

I think it's fine. Make up your mind, do one or the other

Geobits

2:01 PM

I'm not telling you whether to post or not o_O

DJMcMayhem

That's somehow relevant

Leaky Nun

@Adnan Why do I feel like you're calculating every number in the sequence up to n even if they are not used

Adnan

@LeakyNun You have to when you're using something like a(n - 1).

Leaky Nun

@Adnan but i don't always need a(n-1)

lazy eval please

Adnan

@LeakyNun It doesn't calculate the same thing up to n in that case

Leaky Nun

2:09 PM

@Adnan for example?

DJMcMayhem

If you really want my opinion, I think as far as "print this text" challenges go, it's pretty interesting and there's enough repetition to allow for some good compression. Usually similar challenges are restricted-source, but I don't think that's a huge deal. I don't think it's an incredibly interesting challenge, but it definitely wouldn't be closed or downvoted. I would probably +1 it

@TùxCräftîñg

seshoumara

if there's another solution in a language and mine is less than half in size, would it be impolite to leave a comment saying sth like: "You can cut the nr of ops bla bla, see my answer" with link?

TùxCräftîñg

?

Adnan

@LeakyNun oasis.tryitonline.net/…

It's done with the code here: if len(elements) != 0 and n > len(elements) + 100:

Leaky Nun

@Adnan I saw this code

pretty arbitrary if you ask me

DJMcMayhem

2:11 PM

@seshoumara Hmm, it depends on how you do it. "You can save three bytes here" vs "My answer is way shorter"

zyabin101

:O Oasis is a new lang?

Adnan

@LeakyNun It's to prevent memory and stack errors

DJMcMayhem

If you're offering useful feedback, I'd say it's fine

zyabin101

Who created it? :3

DJMcMayhem

Adnan

2:12 PM

@zyabin101 me :)

Leaky Nun

@Adnan now what's the problem with lazy eval?

Ninja :P

Yay :D

Hello

I like it from first look :)

Adnan

2:12 PM

Hi

@LeakyNun Example?

Leaky Nun

@Adnan that means you don't calculate every item

βετѧ Λєҫαγ

In Brainfuck, do you fall of the tape if you go too far left?

Leaky Nun

@βετѧΛєҫαγ depends on the flavor

DJMcMayhem

@Downgoat hi dwongat!

βετѧ Λєҫαγ

@LeakyNun Oh, okay, that makes stuff easier

Business Cat

2:14 PM

Most interpreters go arbitrarily far left and right

TùxCräftîñg

1 hour ago, by TùxCräftîñg

»  echo '“H i”¦… „…a' | ./ru c
Hai

Business Cat

@Downgoat Hi

Adnan

@LeakyNun Ohh, is that also called tail call optimization?

I have no idea how to implement that

Leaky Nun

@Adnan I don't think so

TùxCräftîñg

@Adnan it's called lazy evaluation

Adnan

2:15 PM

either way, I have no idea how to do that

@TùxCräftîñg Oh it's a term?

TùxCräftîñg

yes

DJMcMayhem

@Downgoat I think I'm going to do my next programming project in JS

TùxCräftîñg

Lazy evaluation

In programming language theory, lazy evaluation, or call-by-need is an evaluation strategy which delays the evaluation of an expression until its value is needed (non-strict evaluation) and which also avoids repeated evaluations (sharing). The sharing can reduce the running time of certain functions by an exponential factor over other non-strict evaluation strategies, such as call-by-name. The benefits of lazy evaluation include: The ability to define control flow (structures) as abstractions instead of primitives. The ability to define potentially infinite data structures. This allows for more...

Adnan

thanks :)

Leaky Nun

@Adnan What does " do?

Adnan

2:17 PM

@LeakyNun It pushes a string, but that the dumbest thing Oasis has now.

I got to go btw

bai

bai

@Adnan farewell

@Adnan “B i”¦… „…a

So you are using the borked vertical bar

TùxCräftîñg

yes

to split strings

brbainsominutes

Leaky Nun

2:27 PM

0

A: The Squiggly Sequence

Bash, 29 bytes yes $[92-$1%2*45]P|sed $1q|dc

Isn't this bash+coreutils?

Business Cat

Think so, it uses sed

And dc

DJMcMayhem

I have 11,666 rep right now.

Leaky Nun

@DJMcMayhem I have 16,281 rep right now

3^5 * 67

DJMcMayhem

cool

TùxCräftîñg

back

Leaky Nun

2:32 PM

CMC: do this in oasis:

27

Q: Fibonacci-orial

Definition Fibonacci sequence F(n), on the positive integers, are defined as such: 1. F(1) = 1 2. F(2) = 1 3. F(n) = F(n-1) + F(n-2), where n is an integer and n > 2 The Fibonacci-orial of a positive integer is the product of [F(1), F(2), ..., F(n)]. Task Given positive integer n, find the ...

DJMcMayhem

There's like 2 people who know oasis.

Leaky Nun

@DJMcMayhem you can be the third

Downgoat

@DJMcMayhem :O :D +1

Leaky Nun

it's really simple

DJMcMayhem

Okay, I guess I'll try it.

Leaky Nun

2:33 PM

halp google cache is faster than oeis

TùxCräftîñg

Ahh yes, I do like ÐÈ sè× — BenM 2 hours ago

seshoumara

@LeakyNun @BusinessCat yes, strictly speaking my solution was in bash + coreutils. But hasn't bash become already like a synonim for both?

TùxCräftîñg

._.

DJMcMayhem

Right now, I'm trying to fix a BF answer of mine, but I'll try it afterwards

Conor O'Brien

   hello =: 'ello'
   say =: ]
   I =: ;~ ' ' ,~ ]
   and =: ,&.>
   goodbye =: 'Hh'
   you =: ;

   you say goodbye and I say hello
Hello hello

(in J)

DJMcMayhem

2:33 PM

I love that song

Leaky Nun

@seshoumara nope

seshoumara

Ok, I will change the title accordingly. I also ask since I've seen many people post Bash and Pure bash or sth like this

Martin Ender

@LeakyNun I tried beating your GolfScript solution to Fractal Plus on anarchy. I ended up at the same byte count, but looking at the stats our solution must be different. Do you still have the code somewhere? Maybe we can beat 36 by combining our solutions?

(that said, I don't know GolfScript very well, so I feel like mine is probably a bit golfable anyway)

Leaky Nun

@MartinEnder I don't have it stored but I can try to recreate

Martin Ender

I had a nice explicit form, but unfortunately both base conversion and 2-dimensional maps are super expensive in GolfScript :(

Leaky Nun

2:37 PM

that's true

@MartinEnder Sorry, I have completely forgotten my solution. Have fun golfing in golfscript.

seshoumara

@LeakyNun updated my entry

Eᴀsᴛᴇʀʟʏ Iʀᴋ

@ConorO'Brien lol hai

Leaky Nun

@seshoumara seen

quartata

This is the annoying part about anarchy

Martin Ender

@LeakyNun does this ring any bells: ['+']{.{.,' '*\1$++}%\{3*}%1$++}4*n*

Leaky Nun

2:42 PM

@MartinEnder probably something similar

@MartinEnder You could easily change the stats by doing something like this: ['+']{.{.,' '*.@+\+}%\{3*}%1$++}4*n*

@DJMcMayhem How's it?

DJMcMayhem

Hello, Goodbye by The Beatles?

The Beatles - Hello, Goodbye

►

@LeakyNun Hey, do you the best way to do a stack-safe logical NOT in brain-flak?

Leaky Nun

Aug 27 at 7:13, by Leaky Nun

@DJMcMayhem one-stack not (24 bytes) (consumes input) (stack-safe)

Martin Ender

@LeakyNun yeah, true

DJMcMayhem

@LeakyNun Oh cool. That's a little longer than I was hoping, but thanks!

Emigna

@LeakyNun: Why does bc+V return 1 regardless of input? I don' think I quite understand how to build a program.

Leaky Nun

2:50 PM

@Emigna nope

(did you put the input in STDIN?)

DJMcMayhem

I'm trying to fix my last brain-flak answer, but I found a bug in Wheatwizards NOR, so I'm going to need like 3-4 NOTs, and it's going to be way less golfy... :'(

Emigna

ah, indeed I did

thanks

Leaky Nun

0

A: Calculate the nth term of Golomb's self-describing sequence

Oasis, 7 bytes (non-competing) This language has one sole purpose: to out-golf Dennis in sequences. n<aae>T Try it online! Oasis is a language designed by Adnan which is specialized in sequences. Currently, this language can do recursion and closed form. The T at the end is shorthand for 1...

\o/

who on earth salt-voted it

Adnan

@LeakyNun I don't think it's nice to say things like "to out-golf Dennis in sequences".

zyabin101

^

Adnan

2:55 PM

Although it's a competition, sportsmanship is also very important.

5

Leaky Nun

14 hours ago, by Adnan

I don't want to get my ass beat by jelly again

@Adnan edited

DJMcMayhem

Do you know if it's possible to put a link in a bounty message?

Martin Ender

yes

it uses the same mini markdown as comments

DJMcMayhem

OK, ty

Leaky Nun

Is anyone still attempting this?

27

Q: Fibonacci-orial

Definition Fibonacci sequence F(n), on the positive integers, are defined as such: 1. F(1) = 1 2. F(2) = 1 3. F(n) = F(n-1) + F(n-2), where n is an integer and n > 2 The Fibonacci-orial of a positive integer is the product of [F(1), F(2), ..., F(n)]. Task Given positive integer n, find the ...

code-golf arithmetic fibonacci

Adnan

3:00 PM

@LeakyNun thanks, +1

Leaky Nun

@Adnan thanks

DJMcMayhem

Bountied!

Leaky Nun

@Adnan Any CMC for me?

DJMcMayhem

35

Q: Golf all the 16 logic gates with 2 inputs and 1 output!

For example, the gate A and B is a logic gate with 2 inputs and 1 output. There are exactly 16 of them, because: each logic gate takes two inputs, which can be truthy or falsey, giving us 4 possible inputs of the 4 possible inputs, each can have an output of truthy and falsey therefore, there ...

code-golf logic-gates

TùxCräftîñg

1.  1287.670396231029   ShutUpAndTakeMyMoney
2.  1283.9383988565178  WarGamer
3.  1276.998038730706   VincentKasuga
4.  1111.5242375581379  Profiteer
5.  1102.8235144222974  DumbBot
6.  1037.2024050650048  Cheater
7.  1026.1658280539223  Spammer
8.  1015.8775789083088  DartMonkey
9.  943.0102810505733   python_starter
10. 759.7158334554806   WallStreet
11. 739.8120236024017   UncleScrooge

._.

Leaky Nun

3:00 PM

@DJMcMayhem just 100 rep :o

TùxCräftîñg

the two first are joke bots

Business Cat

@TùxCräftîñg What is that

TùxCräftîñg

15

Q: Stock Exchange KoTH

The stock market is all about the speed of knowledge. Unlike previous challenges, the current stock price is not random: it is determined by those playing the game. If you can identify an under-priced stock before anybody else, then you've written yourself a money-making program. Price refers t...

king-of-the-hill

^ the leaderboard of this

DJMcMayhem

@LeakyNun Hey, I don't hit the rep cap every single day like you. I gotta be a little bit stingy :P

4

TùxCräftîñg

@LeakyNun is the sock of Jon Skeet?

Nathan Merrill

3:02 PM

@TùxCräftîñg these scores are wrong

DJMcMayhem

Haha, thank God Jon Skeet doesn't golf, cause otherwise we'd all be screwed.

4

Geobits

@TùxCräftîñg It happens:

TùxCräftîñg

@NathanMerrill ?

Geobits

This would probably work fine, except I expect there will be entries that dumb-luck their way slightly higher. There usually are. — Geobits yesterday

Adnan

@LeakyNun How about this one: A000459

Nathan Merrill

3:03 PM

@TùxCräftîñg my Elo system was messed up, making good scores push your ELO down

I'm rerunning right now

Leaky Nun

> a(n) = n*(2*n-1)*a(n-1)+2*n*(n-1)*a(n-2)-(2*n-1), a(1) = 0, a(2) = 1.

Adnan

@LeakyNun Yes haha

Leaky Nun

Alright

Adnan

I just searched for a random OEIS

Business Cat

Wow the Low-Quality post queue is always so full

Silly auto-flags

TimmyD

3:05 PM

@Fatalize "prugrammong pizzles & code golf" was what mine just created

Nathan Merrill

CMC: solve the top post before the next one appears: stackexchange.com/questions?tab=realtime

Leaky Nun

@Adnan nnx<**nxn<*c*nx->+T0

Adnan

@LeakyNun Nice :)

Leaky Nun

@Adnan thanks

@Adnan What about square without ² or * (yes this is do X without Y)

Adnan

@LeakyNun Ahh, I'm missing a duplicate command

Leaky Nun

3:09 PM

@Adnan you don't need it

Adnan

> a(0) = 0, a(1) = 1, a(n) = 2*a(n-1) - a(n-2) + 2

Leaky Nun

@Adnan you may try

my record is 5 bytes

Nathan Merrill

hey Javascripters: is ES6 a huge improvement over ES5? Better put, if I only support ES5 for my next KoTH, is that going to be a problem?

DJMcMayhem

CMC: Recommend a band or song for me to listen to right now.

Adnan

@LeakyNun xc-»T

Leaky Nun

3:12 PM

@Adnan nice

Downgoat

@NathanMerrill yes

ES5 is a shit piece of shit that is just shit. ES6 is a decent OO language

Nathan Merrill

@Downgoat what's the biggest differences between the two?

Downgoat

@NathanMerrill probably arrow funcs/TCO & real classes and inheritance

Nathan Merrill

hm. TCO is nice, but I don't think the rest of that is necessary for a KoTH submission

especially because I'll be passing fully-built objects into JS functions

Leaky Nun

@Adnan here

TùxCräftîñg

3:15 PM

classes are nice for KOTH

Downgoat

@NathanMerrill hm ok

^^

zyabin101

I made a zip command line compressor wrapper. :3

TimmyD

@DJMcMayhem Oneiric Tales by Miguel Rivera

TùxCräftîñg

i was trying to make a bot selling 0 stock at Integer.MIN_VALUE and it didnt end well ._.

Adnan

@LeakyNun Oh, it sums up the uneven numbers, doesn't it

Leaky Nun

3:16 PM

@Adnan yes

Downgoat

@TùxCräftîñg ._.

Adnan

Clever

zyabin101

Tree active lines, plus a fowerth for display when using the script from shortcuts and a fifth as a note.

TùxCräftîñg

btw i made a golfing language in ruby

Business Cat

You're already finished it?

Downgoat

3:17 PM

@TùxCräftîñg is it gaot-#?

zyabin101

@echo off
rem Set ZIP_LOCATION below to the path to the executable zip.exe!
set ZIP_LOCATION=P:\ath\to\zip.exe
"%ZIP_LOCATION%" -v9 zipfile.zip %1
pause

TùxCräftîñg

no

Downgoat

;_;

TùxCräftîñg

@BusinessCat the only thing lacking for TC is comparison operators

Business Cat

There must be a gaot#

Downgoat

3:18 PM

^ yes

zyabin101

I put this script in a hidden location, and a shortcut on the Desktop.

Now, when I need to compress something, I just drag'n'drop it over the Zip icon on the Desktop.

Downgoat

@NathanMerrill how are you planning to support just ES5?

Business Cat

@Downgoat: let's make gaot#

Nathan Merrill

@Downgoat wiki.openjdk.java.net/display/Nashorn/Nashorn+extensions

Downgoat

@BusinessCat +1

Nathan Merrill

3:19 PM

I'm wanting more and more to support only a subset of languages for my KoTH

90% of my runtime is communicating over pipes

Downgoat

@NathanMerrill I have a bad feeling this is rhino

Nathan Merrill

@Downgoat its a totally different JS engine

but yes, its built on Java

Downgoat

Oh :/

DJMcMayhem

@TimmyD ty, queueing right now.

Dennis

@βετѧΛєҫαγ For most interpreters, it stores the code in a file and passes the filename to the interpreter. That way, all you have to do is open(sys.argv[1]).read().

Downgoat

3:20 PM

y u no use spodermonkey ;_; surely they are C++ bindings for Java

Nathan Merrill

@Downgoat because I can pass in a Java object into a JS, and all of the properties/methods will be there

and because it'll be faster :)

Downgoat

Why not make everything in like node?

Nathan Merrill

...because then I only support JS

TùxCräftîñg

@Dennis could you add Ru to TIO?

zyabin101

"If it is good enough, yes."

Downgoat

3:22 PM

@NathanMerrill I do not see the problem

TùxCräftîñg

it use greek letters... ?

Business Cat

I will try to learn Ru if it's on TIO

zyabin101

"One,..."

TùxCräftîñg

@BusinessCat github.com/tuxcrafting/ru/blob/master/doc.md

quartata

@Downgoat now now

Dennis

3:25 PM

@TùxCräftîñg I'll take a look.

TùxCräftîñg

thx

Business Cat

I can't use a downloaded interpreter at work :P

zyabin101

:O The bot qw has cloned seven times. :D

Downgoat

@TùxCräftîñg OH MY GOD GREEK LETTERS. SUCH COMPLEX MATH EQUATION

TùxCräftîñg

α+π

Downgoat

3:31 PM

@TùxCräftîñg is this answer to universe and everything because it damn well looks like it

TùxCräftîñg

»  echo '+π' | ./ru c 10
13.141592653589793
»  echo '+π' | ./ru c 42
45.1415926535898

(i golfed it; α as lhs is automatic)

Leaky Nun

@TùxCräftîñg rip floating-point

TùxCräftîñg

why?

Downgoat

@TùxCräftîñg proof 13 & 45 are actually answer to universe not 42

Sp3000

@Dennis Pull Sequencer?

zyabin101

3:34 PM

There should be an Oasis OEIS. :3

TùxCräftîñg

»  echo 'Ϟ²π;ϟ+τ' | ./ru c
19.739208802178716

no the answer is 19

Downgoat

Oh :|

@zyabin101 Oasis?

Dennis

@Sp3000 Pulled.

zyabin101

Oasis is the sequence golfing lang. Learn it on github.com/Adriandmen/Oasis, try it online on oasis.tryitonline.net

Sp3000

Thanks :) (just showing Martin something)

zyabin101

3:36 PM

@Downgoat ^^

Downgoat

@zyabin101 these is no raadme how to I learn it

TùxCräftîñg

btw my weird code can be golfed as ²π×2

zyabin101

@Downgoat info.txt

Downgoat

Oh ok

New Sandboxed Posts

0

A: Sandbox for Proposed Challenges

Products of Consecutive Primes As of time of writing, I have 17017 reputation, which you will all be able to factorise as 7*11*13*17, a product of 4 consecutive primes. I want you to write a function or program to output all the products of two or more consecutive primes up to an input value n....

TùxCräftîñg

3:38 PM

@Downgoat the code is self-explanatory ( ͡° ͜ʖ ͡°)

Downgoat

gtg class starting

zyabin101

@Downgoat Which class?

Leaky Nun

@Downgoat Read my OASIS answers. I explained the language quite thoroughly in my answers.

Downgoat

CS

zyabin101

@Downgoat Good luck learning Computer Science! Goodbye!

TùxCräftîñg

3:39 PM

Downgoat

@zyabin101 Hahaha I'm pretty sure I'm just gonna learn how 2 add numbers in python

DJMcMayhem

Fun! I like cs classes

TùxCräftîñg

42

Q: How to make a Spherical Cow?

Being a theoretical physicist, I always have a great respect for Spherical Cow. So I thought about making one myself. I am not sure how can I create (something considered to be the simplest!) this marvel. One possible way could be using the ExampleData for Cow and map it on a sphere - something ...

geometry image3d

#Users_of_Mathematica_are_weird

Business Cat

I like how Mathematica has a built-in for a 3D model of a cow

DJMcMayhem

0

A: What programming languages have been created by PPCG users?

Brain-Flak Brain-Flak is a language designed by me, DJMcMayhem, and written as a collaboration between me and two other users, @Wheat Wizard, and @1000000000. When your Stack Overflows, you forget whatever you were talking about. If this happens very badly, to the point where you can no longer ...

Downgoat

3:41 PM

@TùxCräftîñg XD such wat

DJMcMayhem

Finally added it

Downgoat

@DJMcMayhem I should add cheddar

TùxCräftîñg

1000000000, New York, United States

123 5

code-golf cryptography string

it have 123 rep and

El'endia Starman

yesterday, by Business Cat

12

Q: How to make a Spherical Cow?

Being a theoretical physicist, I always have a great respect for Spherical Cow. So I thought about making one myself. I am not sure how can I create (something considered to be the simplest!) this marvel. One possible way could be using the ExampleData for Cow and map it on a sphere - something ...

geometry image3d

Super-ninja'd? :P

Anyway, I'm sure @Geobits and @HelkaHomba and a few other people will greatly appreciate this video:

The Simple Solution to Traffic

►

Downgoat

@El'endiaStarman @TùxCräftîñg ;_; y u plagariz buisnes cat

zyabin101

3:43 PM

# [undefined](github.com/Adriandmen/Oasis), 1 byte

    n

[Try it online!](oasis.tryitonline.net/#code=bg&input=)

Business Cat

( ͡° ͜ʖ ͡°)

Zalgo

hai

zyabin101

@Dennis Oasis isn't called undefined :/

Dennis

No repro.

What browser are you using?

Downgoat

@zyabin101 it's undefined so it's probably just u

Zalgo

3:45 PM

bai

TùxCräftîñg

gtg

Business Cat

  “¡ẎṢɱ»         Yield "aeuoi"; concatenate "a" with the dictionary word "euoi".

... what

Downgoat

@Zalgo @TùxCräftîñg bai

DJMcMayhem

@Downgoat hell yeah you should

Dennis

@LeakyNun Not my vote, but I have to say, I could do without the little victory dance every time someone outgolfs me and/or Jelly.

10

Leaky Nun

3:48 PM

@Dennis look I edited it already

Dennis

I was referring to It's shorter than Jelly!. Not sure what it said before.

Leaky Nun

@Dennis ok

Geobits

It ain't easy being memey.

zyabin101

@Dennis Firefox 47.0.1, Mozilla/5.0 (Windows NT 5.1; rv:47.0) Gecko/20100101 Firefox/47.0.

DJMcMayhem

Sorry

Didn't mean to be rude

Dennis

3:53 PM

It's in the transcript anyway. ¯\_(ツ)_/¯

Downgoat

question: anyone know what Donald Knuth contributed to linguistic theory?

El'endia Starman

I've asked this before, and I think one person took a stab at it, but it seems like there are more people around now. My database has 940626 rows, and this chat room has 929677 messages. I tried excluding users with user id < 0 (feed bots, mostly), but that only brought the number of rows down to 933550. So there are still about 3,883 extra rows in my database for some reason.

Downgoat

Maybe deleted messages?

DJMcMayhem

@Dennis I don't see it. Did you purge it?

El'endia Starman

I already did a search-and-delete on duplicates by message id, but that only took out 172 rows.

@Downgoat They're actually not public. Open this chat room in incognito.

Dennis

3:57 PM

@DJMcMayhem It still shows in the oneboxed answer.

DJMcMayhem

Yeah, but not in the revision history