The Nineteenth Byte

Martin Ender

8:01 AM

no, because it doesn't even accurately represent the first significant digit of the result

seshoumara

the first s.d. is 1, 1000 starts with 1

Martin Ender

significant digits don't just have a value, they also have a place. the first s.d. of 10000 is 10^4... the first s.d. of 1000 is 10^3.

following your argument the placement of the decimal point would be arbitrary for all values

by your argument 12.34 and 0.0001234 are accurate representations of one another up to the fourth significant digit

seshoumara

I see.

ok, then that explanation paragraph is good to go

feersum

I can't believe how g++ with -Wall doesn't even emit a warning when I return something in a void function.

seshoumara

8:20 AM

@MartinEnder thanks for the patience to explain it to me. Learning something (or understanding sth better) every day here.

Wiki is great and all, but for the small details TNB is the place to go :)

mınxomaτ

@feersum Works for me.

feersum

Mine's a somewhat old version I suppose.

mınxomaτ

I have 5.4

feersum

5.2

Oh, mine also returns a warning in C. Not in C++.

Martin Ender

@seshoumara no problem. the issue is clearer when using scientific notation. then the expected output would be 1.000e5 but yours is 1.000e4, and if you say that something needs to be accurate to x s.d. then in any case, the exponents of the scientific notation must match.

seshoumara

8:26 AM

right. Small detail, don't you mean 1e4 and 1e3 instead?

Martin Ender

oh right, of course

Destructible Lemon

8:41 AM

ok finally found a DAW I can use

@MendeleevLemon I will make music and stuff too!

Qwerp-Derp

9:02 AM

Is there a challenge where you have to add more than two integers?

Like, an arbitrary amount?

Fatalize

can't remember one

Though if you do that it might be good to forbid built-ins that automatically work for that, an only allow those that work for 2 integers

Qwerp-Derp

I don't want to make the challenge, I just want to submit an answer :P

mınxomaτ

I, for one, think a challenge should be more than the sum of its parts.

Qwerp-Derp

@mınxomaτ slow clap

@WheatWizard Is it possible to turn something like this:

5 0 2 3 0 1 -3 -2

Into this?

5 -1 2 3 -1 1 -3 -2 2

Where the 0s are turned into -1, and the 2 on the end signifies how many zeroes there were

SIGSEGV

9:26 AM

was my first bash sumbission okay?

Well betseg likes it

Down Christopher

9:53 AM

@HyperNeutrino thanks

Yes! 500+ rep! That makes me happy

Now you can't give all of my rep away in a bounty :P

betseg

10:17 AM

New challenge idea: code-golf unbeatable chopsticks bot

Would it be ok?

New Meta Posts

0

Q: Unary representation of floating-point numbers

When the Find the inverse of a number 1/x challenge has been posted, the author posted a bounty for the shortest Retina submission. After that, there was a bounty for sed, another text/string-based language. Since the challenge requires I/O with floating-point numbers, this brings forth a questio...

discussion

Kritixi Lithos

@betseg The only problem is stalemates

betseg

@KritixiLithos The bot must either win or continue, I don't think stalemates are a problem

Kritixi Lithos

10:36 AM

In my human games, the games almost never end if we both played good

But then again, bots aren't humans

betseg

As I said, the game can be infinitely long but the bot may not lose

Kritixi Lithos

I just remember doing probability in math class for events that occur infinite times

> infinite number of calculations in finite time

betseg

How will you do something in a shorter time than Planck time to do something infinite in a finite time?

Kritixi Lithos

Nanotechonology?

betseg

You can get largely big but you can't reach infinity

Kritixi Lithos

10:47 AM

we don't know

Maybe not in the 3rd dimension, but maybe in another one

wormholes, time-bending structures, ...

Destructible Lemon

@KritixiLithos TIL nanotechnology = Magic

orlp

11

Q: Let's Play Hide and Seek!

The user will hide, and the computer will try to find them. First, the program will take an input, for the size of the grid. Like 5x5, 10x10, 15x15, etc. The grid won't always be a perfect square. The grid is sort of like a chessboard: _______________________________ | | | | | ...

code-challenge ai-player

@SIGSEGV I see you're commenting on this challenge

is it correct that the optimal first choice of location for the 5x5 board is not C3 but B2?

(or one of the four reflections/rotations of it)

SIGSEGV

11:03 AM

@orlp Depends

orlp

no it doesn't depend, I'm assuming an uniform distribution of hiding spots

there's an objective answer

SIGSEGV

Hmm, then it would be better than C3

orlp

11:21 AM

@SIGSEGV yep, optimal choice is (1, 1), not (2, 2)

SIGSEGV

@orlp But It is not clear if whether moving block-by-block or minimax is better

orlp

@SIGSEGV what is moving block by block?

also minimax is not optimal in average case

New Main Posts

0

Q: Who won the game?

Task Everyone knows the game "Tic-Tac-Toe". Your task is it, to evaluate an ascii tic-tac-toe matchfield. Your Programm/Function should output/return the winner: O, X or nobody (N). Pattern X|O|X O|X|O O|O|X In this case your programm/function should output/return 'X' Rules Input can come...

code-golf ascii-art parsing tic-tac-toe

orlp

@SIGSEGV that's the optimal choice function

it's recursive

if w, h == 1, we find the answer to be (0, 0) in 0 steps

if not we enumerate all possible guess positions

oops it's not correct

user165474

12:13 PM

What's the consensus on editing someone's post and drastically changing the code (shortening it) instead of commenting?

orlp

@SIGSEGV actually I made a mistake, for 5x5 (1, 1) and (2, 2) are the same

Jan Dvorak

@HyperNeutrino You could post your own answer instead, with attribution. codegolf.meta.stackexchange.com/questions/11710/…

SIGSEGV

@HyperNeutrino reject it

user165474

@SIGSEGV I ran across one on your post, and I rejected it prior to asking. Does the reason "It changes the original intent" the right reason?

Jan Dvorak

12:28 PM

Yep

user165474

Thanks

user165474

Someone rejected it under "causes harm" which may be because it might break the code, but I didn't bother checking what the changes exactly were.

Stewie Griffin

codegolf.stackexchange.com/a/114618/31516

Anyone know why OP deleted that one?

user165474

They did?

Stewie Griffin

The answer is deleted, not the question @HyperNeutrino.

I'm not sure you have enough rep to view the deleted post...?

user165474

12:35 PM

There was an answer?

user165474

I have 1.9k, so no, I can't see deleted things.

fəˈnɛtɪk

@Stewie the answer was invalid

Stewie Griffin

74 to go :) @HyperNeutrino

fəˈnɛtɪk

going from - to \ back to - wasn't allowed

user165474

@Stewie Wait isn't it 10k?

fəˈnɛtɪk

12:37 PM

2k until we get a design

user165474

@fəˈnɛtɪk Right, I keep forgetting about our lack of a design. lol

user165474

Well then 74 to go :P I can get that much in one day if I really try but there's this annoying thing called school >:-|

Stewie Griffin

@fəˈnɛtɪk too bad... Hope it

user165474

Well I mean I was right... In binary...

Stewie Griffin

No, you weren't @HyperNeutrino...

user165474

12:41 PM

@Stewie Well I mean I was close...

user165474

Not really :P

user165474

Because 10k -> 10000 -> 16

Jan Dvorak

1k in binary is still 1000_d. 1Ki in binary is 1024_d.

user165474

True.

Stewie Griffin

2000 is much closer to 16 than it is to 10000 anyway...

user165474

12:44 PM

See so I was closer in binary

Jan Dvorak

@StewieGriffin not in log-scale

AdmBorkBork

@HyperNeutrino "Causes harm" is sometimes the better reason. Because languages here are defined by their implementation, there's no guarantee that the changes made will work on the OP's platform. Yes, a lot of folks use TIO, but that's beside the point.

user165474

@AdmBorkBork Okay, thanks for clarifying. I didn't check over the code because I remembered from somewhere to reject edits that golf someone else's answer too much (someone tried editing my post once and got it rejected before I could reject it).

user165474

In base 6.68740304976422, 10000 is 2000(decimal)

New Main Posts

0

Q: No Singles Allowed

This is a fairly simple challenge. Write a program that computes the distance between two points on a 2D plane. HOWEVER, you can't use any functions or symbols that are 1 character long! Examples -=, +=, *=, /=, %=, etc. are allowed ||, &&, --, ++ are allowed as well +, -, /, * are not allowe...

code-golf math restricted-source geometry

AdmBorkBork

12:47 PM

27

Q: Suggested Edits: Reject Golfing?

Every now and then, I see an edit where somebody does some golfing (most recent). From what I can tell, our standard is to reject those edits as invalid and post a comment saying what was suggested, because we feel that golfing tips should be comments. And I have always done so (after I learned)....

discussion editing reviewing

user165474

Thanks.

mınxomaτ

1:31 PM

WTF USA

10

Poke

@mınxomaτ certainly interesting although the article is about 10 paragraphs too long

that could set a dangerous precedent

Jan Dvorak

I stopped reading after the third one

Poke

TL;DR guy makes program. hackers use program. is guy liable?

the fbi says yes

Jan Dvorak

Case a: justice happens. Case b: wave of lawsuits happens. Does someone know who made the car the guy who drove into people used?

Case c: EULAs get that much bigger now.

Poke

case c probably happens either way

although i thought most of them already had a clause for that

Jan Dvorak

1:43 PM

I'll wager a guess that this guy's code didn't have an EULA

Poke

probably a fair wager

New Main Posts

1

Q: Print the Periodic Table

Your challenge is to print/output/return this text: _____ _____ | 1 | | 2 | | H | ...

code-golf kolmogorov-complexity

Geobits

I wrote a program in C++ once to crack a game's encryption on its resource files. I guess it's the language that's liable though, not me.

Jan Dvorak

@Geobits expect a lawsuit

Geobits

Nope. Pretty sure they should arrest Stroustrup

Poke

1:48 PM

unless C++ has a thorough eula

Geobits

See, this is why I don't write new languages. You're all warned now.

mınxomaτ

I've been accused of hacking by merely accessing a public file server.

Geobits

A public file server, or all public file servers? ;)

mınxomaτ

The server leaked 400k+ SSNs and other PII. They tried to sweep it under the rug by calling it a hacking incident.

It was the HHS: ocrportal.hhs.gov/ocr/breach/breach_report.jsf

Jan Dvorak

How did the accusation go?

mınxomaτ

1:53 PM

Unfortunately, the man who discovered the cover up (using the openftp4 log) was raided by the FBI and they have yet to return his stuff.

Jan Dvorak

I'm not going to USA, ever...

betseg

But muh freedoms?

Jan Dvorak

I've heard they even give you a free colonoscopy on arrival

Poke

They say the best things in life are free...

Downgoat

@Geobits oh no not the cheese D:

Poke

1:58 PM

@Downgoat time to update your eula

betseg

FBI will knock every American's door who starred the link that mınxomaτ posted.

Poke

inb4 all the stars disappear

Downgoat

> It is too late to undo this operation

oh no

Jan Dvorak

in before everyone who's ever put a hack into their code gets put into jail

Poke

@JanDvorak b-b-but i just did a hack on wednesday

noooooooooooooo

Nathan Merrill

2:05 PM

@mınxomaτ I can actually agree with this. It has to come down to what his intent was when he built the software.

Jan Dvorak

@NathanMerrill how do you judge intent?

Nathan Merrill

that's the purpose of a jury

AdmBorkBork

disq.us/p/1hgrvca

betseg

but today is march 31

Jan Dvorak

doesn't mean the FBI won't use this as a justification to bust other people

@betseg everywhere?

betseg

2:08 PM

That's why I italicized it

AdmBorkBork

@betseg I don't think that verbed the way you intended.

Nathan Merrill

@JanDvorak I mean, I can go with the fact that they had probable cause that he was a hacker (due to the fact of how common his software was used by hackers). It sucks that that is the case, but false positives happen all the time in busts. The point of the FBI isn't to determine whether he's guilty

Lembik

anyone here got python on OS X?

I have a weird problem I needed reproducing

Nathan Merrill

doesn't python come with OS X?

Downgoat

@NathanMerrill :O Dennis Richie is hacker confirmed?? :P

Lembik

2:10 PM

does anyone who has OS X also have python? :)

@NathanMerrill I don't know but you can certainly install it

@NathanMerrill python-docs.readthedocs.io/en/latest/starting/install/osx.html

fəˈnɛtɪk

@NathanMerrill He removed the capabilities that really made it useful for hacking. Someone cracked the DRM on one of the versions prior to that and distributed it...

Poke

@NathanMerrill Does it not bother you that most of the "hackers" using his software pirated it?

Jan Dvorak

Congratulations. You have just been outgolfed in Bubblegum. — Jan Dvorak 8 secs ago

4

Nathan Merrill

@Poke I mean, yeah, but that doesn't have any bearing on whether he's guilty

@fəˈnɛtɪk And I imagine that this would be a power piece of evidence in his defense

SIGSEGV

How to buy Mathematica for cheap: Buy a raspberry pi, it comes with Mathematica out-of-the-box

Downgoat

2:21 PM

@SIGSEGV I think you can also just install raspian

betseg

SIGSEGV

@Downgoat Or PIXEL as they call now

Poke

@NathanMerrill It does when paired with the fact that he deactivated licences when people were using it maliciously

SIGSEGV

@betseg Edit it to: "One does not simply not make a meme about not simply not getting out-golfed by Dennis"

fəˈnɛtɪk

@NathanMerrill They are also trying to claim that his DRM software was used criminally...

betseg

2:24 PM

@SIGSEGV I didn't make the meme, found it on meta.

SIGSEGV

@betseg ikr

Jan Dvorak

DRM is a crime, so...

Poke

wait a sec... i just read the Bubblegum spec. Is the bit about the hash just so it's a valid language on ppcg?

SIGSEGV

One does not simply not not not make a picture using an online meme generator to not not make a meme about not not not simply not getting outgolfed by Dennis

Poke

that's hilarious

betseg

2:28 PM

@Poke yep

@SIGSEGV wat

Poke

Dennis++ for that

Jan Dvorak

@SIGSEGV you better stop now

SIGSEGV

I'm stopping

betseg

Google Assistant...wat

She's not wrong

Downgoat

@betseg 5/6 of that sentence is redundant -1

SIGSEGV

2:41 PM

Will we eventually make Dennis: The language?

Jan Dvorak

As long as it's a menace to something, go ahead

Down Christopher

3:06 PM

Make it anti-jelly

It undoes the actions jelly does

Poke

Am I doing something wrong in this brainflak program

Down Christopher

yes, since you are asking :P I am looking

DJMcMayhem

@Poke many things

Poke

maybe i read the spec wrong

DJMcMayhem

First off, use input instead of arguments

New Main Posts

3:08 PM

2

Q: Palindromic Residue

Today, as I'm writing this, is March 31st. In the US, this is 3/31. I was playing around with 331 as a number to come up with a challenge, and found that its residues (modulo small numbers) is palindromic. 331%2=1, 331%3=1, 331%4=3, 331%5=1, 331%6=1 (11311). Your challenge here is, when given an...

code-golf math number-theory palindrome

DJMcMayhem

Second, the snippet evaluates to 3+1, but you're not doing anything with that value. You probably want to push 4, so ({}{})

Poke

ah

cool thanks

DJMcMayhem

Try it online!

Down Christopher

@SIGSEGV inviting you

DJMcMayhem

If you were running it locally, args would work fine

Poke

3:10 PM

seems interesting and possibly more learning-friendly than stackcats

DJMcMayhem

Well, stackcats is extremely weird and hard to learn

Poke

yeah that's my point, haha

DJMcMayhem

There is also flakcats haha

Poke

oh man

gonna just ignore that

DJMcMayhem

Wheatwizard has made a ton of bf variants. I haven't used most of them

AdmBorkBork

3:14 PM

@DJMcMayhem Why?!

DJMcMayhem

I ask myself that every single day

Not really, but I'm still not sure why

Down Christopher

:P Yeah

Conor O'Brien

@Downgoat did you infect my firefox

Down Christopher

RIP: Also portal :P

DJMcMayhem

This is why I really love Stack Overflow. They're anyways innovating, and they deeply care about security.

5

Geobits

3:27 PM

Ah, it's that time of year again.

AdmBorkBork

> goat goatCancel

Down Christopher

Gah

Regex is a pain

tio.run/nexus/retina#@68RbaBrGaut@f@/hYmFyX9D/RhDAA pls send help

Basic Sunset

That's a perfectly valid regex, but I'm not sure what you're trying to accomplish

Григорий Перельман

@ConorO'Brien My friend once accidentally renamed every file and directory to 420BlazeIt, 420BlazeIt(1), 420BlazeIe(2), etc.

Conor O'Brien

wow

Down Christopher

3:33 PM

Trying to replace the input number with "1/"and the number

DJMcMayhem

^^^^

Григорий Перельман

Every single file on the disk

Conor O'Brien

how do you do that accidentally

Down Christopher

@ГригорийПерельман Best choice ever

Григорий Перельман

We still have no idea.

He renamed ONE FILE on his desktop and suddenly everything died.

Jan Dvorak

3:34 PM

ha ha. <insert OS name> is so fragile!

4

Conor O'Brien

your friend and I should never meet--both of our computers seem haunted, and if we were to meet, I think the internet would explode

Down Christopher

Yeah

DJMcMayhem

@JanDvorak Absolutely. That's why I only use <insert superior OS name> like a sensible person

2

Down Christopher

Martin! The person I needed

tio.run/nexus/retina#@68RbaBrGautyaUSY2io//@/hYmFyX8A pls help

I am trying to make it compute 1/theInputNumber

@MartinEnder any ideas?

@DJMcMayhem Well I think <insert .js os here> is the best!

mınxomaτ

@ГригорийПерельман A similar thing happened when I wrote a tool to sort my files by type. I managed to kill it, but more than half my files and folders started with "JustTesting..."

Jan Dvorak

3:39 PM

It's like a self-imposed ransomware except you know you aren't getting the files back.

mbomb007

@DownChristopher Maybe you should post that in the Retina chat room...

Down Christopher

@mbomb007 that is a thing?

mbomb007

Retina

Discussion about the Retina programming language, including us...

mınxomaτ

And because I'm lazy, I didn't rename any of them. After a while I learned what UUIDs where what files.

AdmBorkBork

"I'm lazy, so instead of renaming the files, I memorized a UUID." -- Programmer logic. ;-)

mbomb007

3:42 PM

Who needs verbose file names? I golf all my file names.

Conor O'Brien

I use unicode glyphs that look the same to name my filse

mınxomaτ

And then I discovered Everything and all folder structure and sensible file names went to hell.

New Main Posts

0

Q: Make me a pizza

Because it's Friday and I'm hungry, I would like a slice of pizza. I will give you an order and I would like a nice hot ascii-art pizza. Up to the challenge? The Drive-Thru I'll place my order wherever your drive-thru is, whether it is STDIN, a function parameter, a command-line argument, but I...