The Nineteenth Byte

mbomb007

19:02

blech. I've already got 8 sandboxed challenges.

What do people think about this one?

1

cops-and-robbers source-layout Radiation hardening meta-program (Cops) Nuclear winter is coming, so you feel the need to radiation harden every program you've ever made in order to preserve your sanity during the fallout. Unfortunately, time is short, so you have to pick and choose which functi...

Too difficult?

Wheat Wizard

Hey guys I would like to point out that I am offering 100 rep to the best python answer on this challenge. I don't think that the bar is set very high at the moment so it would be great if people could give it a whirl.

mbomb007

Idk enough about how Python compilation works. I always just run my code online.

I've been here more than 2 yrs, and I've never run a Python program on my computer locally.

In fact, idk if I've EVER run ANY program from this site locally...

Scratch that, I've run a SQL query or two.

Wheat Wizard

I believe you can compile python online

DJMcMayhem

19:18

@WheatWizard brain-flak mini challenge: (a == TOS, b == underneath TOS) push a if a== b else 0

Wheat Wizard

using the py_compile module

Basic Sunset

I've done a couple, mainly ones based on the current system time

DJMcMayhem

A and b will always be positive

mbomb007

@JanDvorak Do you think it'd be reasonable to allow either?

Jan Dvorak

Perhaps

Wheat Wizard

19:21

[Brain-Flak](https://github.com/DJMcMayhem/Brain-Flak), 24 bytes

({}[({})]){((<{}{}>))}{}

[Try it online!](https://tio.run/nexus/brain-flak#@69RXRsNxJqxmtUaGjbVtdW1dpqaQPL/fxMFEwA)

why are my links not working dammit

Basic Sunset

Doesn't work in multi-line message

mbomb007

^ Yeah, that's it

Wheat Wizard

Ok thats why, rip

mbomb007

Use multiple posts in quick succession instead

Wheat Wizard

[Brain-Flak](github.com/DJMcMayhem/…), 24 bytes

rip

still doesn't work

mbomb007

19:24

computers hate you

Wheat Wizard

This one weird trick makes markdown not work, computers hate him

5

mbomb007

Brain-Flak, 24 bytes

({}[({})]){((<{}{}>))}{}

Try it online!

Wheat Wizard

Thank you

DJMcMayhem

@WheatWizard Oh wow, that's even shorter than equals

That's genius, that'll save me a crapton of bytes

mbomb007

Look at my cool Brain-Flak program. I know exactly what it does. Isn't it amazing?!

Jan Dvorak

19:27

@WheatWizard computers don't really care about that. If anything, it means they have less work to do.

DJMcMayhem

I'm trying to redo my Are The Brackets Matched answer

Wheat Wizard

Oh

can;t wait to see the results

DJMcMayhem

The current one is extremely inefficient, I bet I could reduce it by like 50% or something ridiculous

And that part is crucial

Wheat Wizard

remember push pop reduce

There were a lot that could be done in the current version

DJMcMayhem

Right now it's more about just reducing algorithm redundancies

Wheat Wizard

19:31

Thats probably a really good place to start

Kritixi Lithos

I just got a 126 byte polyglot when the Big Bang Polyglot got closed, so I can't post it: dc, Retina, Foo, GolfScript, ><>

DJMcMayhem

Right now, the algorithm is basically

if TOS == '(':
    push(1)
if TOS == '[':
    push(2)
if TOS == '{':
    push(3)
if TOS == '<':
    push(4)

if TOS == ')':
    ...
...

Wheat Wizard

The worst thing is that ( and ) have a difference of 1 while all the others have a difference of 2

My quine would be like 100 bytes shorter if they all had a difference of 2

DJMcMayhem

Ugh, yeah ik

AdmBorkBork

Could you replace all ) with * and then undo that?

Wheat Wizard

19:37

It ends up being more expensive

DJMcMayhem

@AdmBorkBork You underestimate how impractical brain-flak is :P

Wheat Wizard

find and replace is insanely expensive

AdmBorkBork

I dunno, you folks seem pretty good at golfing it

Basic Sunset

19:51

@KritixiLithos Nice. Retina and Foo are so useful for constant output polyglots

New Main Posts

0

Q: Program That Posts Itself

The Challenge Write a program that posts its own source code along with its number of bytes and the language it's written in in the following format: Language, numberOfBytes bytes your code here The only rule Your program must complete the challenge. You may do this however you can

code-golf

New Sandboxed Posts

0

A: Sandbox for Proposed Challenges

Display a fractal maze Based on this Puzzling.SE question: Alice and the Fractal Hedge Maze. Given a description of a maze as input, output a [graphical / ASCII-art ?] representation of the maze. For the purpose of this challenge, all inner mazes are assumed to be smaller copies of the origi...

mbomb007

ooh, the Sandbox passed 4000 answers recently

#milestone!

Pavel

I wonder if the sandbox or main has more posts

fəˈnɛtɪk

main

149 pages of 50

mbomb007

20:05

Main definitely has more.

Lots of people skip the Sandbox

maybe we should put this question at a net vote count of 42?

Jan Dvorak

You should vote based on content, not based on score ;-)

Anonymous

Using votes to reach a certain score instead of voting based on content and quality? That's a paddlin'

Anonymous

Please report to the nearest trout fishery for reeducation.

mbomb007

Well, considering that it's now closed, it probably deserves some downvotes.

Basic Sunset

But what if you want to downvote because it's a too broad popcon?

mbomb007

20:13

Then downvote?

Jan Dvorak

Still not kosher to ask for downvotes here

Anonymous

@BasicSunset That's content/quality

Basic Sunset

@JanDvorak Yes that's true

mbomb007

Yeah, I was only joking. I've made similar comments about not doing such things before.

The votes on this are so almost perfect... is tempted to downvote to get the vote count back to 42 — Doorknob ♦ Apr 28 '14 at 2:28

Anonymous

The references to trout paddling should clue you in that I was also joking around :P

DJMcMayhem

20:44

Could you make me a hexagon please is currently at 42

betseg

i.redd.it/bziwltfccary.gif .

11

Luis Mendo

We should make a histogram of challenge scores to see if there's a spike at 42 :-)

Helka Homba

@LuisMendo CMC: What's the first positive int N such that there is no PPCG question that currently has a score of exactly N.

Luis Mendo

Nice one! If only I knew how to handle those SE queries...

Helka Homba

Going from codegolf.stackexchange.com/questions?page=2&sort=votes I'd guess 86

mbomb007

20:54

It's basically:
- List of all questions, order by score
- Deduplicate by score
- Get minimum value not in results.

DJMcMayhem

@HelkaHomba I see an 82

Helka Homba

you do not ;)

mbomb007

VTC this question‌?

user165474

@mbomb007 VTC'd

user165474

Need one more

user165474

20:56

Done.

user165474

I could easily just use all UTF-8 characters in a comment and prevent anyone else from answering...

Helka Homba

@HyperNeutrino I'd mention that to him

New Main Posts

-4

Q: Print my birthday!

This is an answer-chaining question. Your task is very simple. Output your birthday in the format dd:mm:yy. Here comes the twist!!! You may not use any characters in the answer posted before yours. White space, numbers and : don't count as they'll be used in most answers. Therefore Whitespace...

kolmogorov-complexity restricted-source answer-chaining

Basic Sunset

@HelkaHomba Odd, on the data explorer it says there is an 86

New Sandboxed Posts

0

A: Sandbox for Proposed Challenges

Which answer is correct? I've posted an earlier version of this question already; but now hoping to refine here before correcting the original post. Thanks all in advance for any advise. I saw this elegant logic puzzle on Mathematics: Which answer in this list is the correct answer to this...

Luis Mendo

21:08

So 99 seems to be the first score not currently appearing

Helka Homba

but the 86? was 86ed?

Luis Mendo

@BasicSunset Do you know how modifiy that query to get the count for each score? That is, number of challenges with that score

Basic Sunset

I'll try... I'm really rusty at SQL though

Luis Mendo

If I'm interpreting the results correctly, they say there's at least one challenge with score 1161, same for 848, ... But I can't find those challenges

Where in the query is the PPCG site specified? @BasicSunset

Oh, the URL, right? nvm

Basic Sunset

Yeah

Helka Homba

21:13

You can change the site at a box at the bottom

Luis Mendo

So do we have a challenge with 1161 score? I don't think so

Basic Sunset

Oh that was the wrong link I think. It includes answers too

Here's what you wanted

Luis Mendo

Nice! Yes, that was it

Basic Sunset

Not sure how to look for a value that isn't there. I'm not that good at SQL

LegionMammal978

^ What happens when I try to solve my problems using LaTeX

Basic Sunset

21:17

Apparently the 86 was Interpret brainfuck but it's at 87 now

So, looks like 86 was right

Luis Mendo

So the "winner" is 82

And there's the histogram

If you squint your eyes you see the hole at 82 :-)

LegionMammal978

@LuisMendo Just curious, what would that look like on a vertical log scale?

Luis Mendo

@LegionMammal978 That was my first idea too :-) But the problem is the zeros

Matlab just doesn't plot them (which is fine), but then they are confused with 1, which gives a 0 in log scale

LegionMammal978

@LuisMendo Just replace them with 0.1 or something

So they'll be -1

Luis Mendo

But that would look weird, wouldn't it?

Maybe plot 1+score in log scale

LegionMammal978

21:25

Try that

Luis Mendo

that's log y, linear x

mınxomaτ

Sometimes I want to punch my past self.

4

betseg

> sometimes

well, better than me

New Main Posts

22:15

0

Q: My source is in order, is yours?

Your challenge is to write a program, function, etc. that calculates if the passed string is "in order". That means that the Unicode / UTF-8 characters have char codes that are in order from smallest to largest. You must return one value if the input is "in order" and another if it is not. The va...

code-golf restricted-source

Pavel

@mınxomaτ How'd this happen?

Helka Homba

Nifty how youtu.be/bG7cCXqcJag was based on mathoverflow.net/q/265310/56847

Maybe someday PPCG will show up on PBS

Pavel

@HelkaHomba Public Broadcasting Service?

Riker

yes

Pavel

I mean, I suppose it would be cool, but why specifically PBS and not any other channel

Riker

22:24

because it's a really big channel

and that mo question was on the PBS yt

Helka Homba

It's a major us tv network, not just on yt

Riker

yea

Pavel

@Riker What? When? Link?

Riker

5 mins ago, by Helka Homba

Nifty how https://youtu.be/bG7cCXqcJag was based on https://mathoverflow.net/q/265310/56847

> youtu.be/bG7cCXqcJag

Pavel

I am fucking blind.

Riker

22:29

apparently!

Pavel

I just looked up the definition of legal blindness in the US for the first time, and realized that without glasses on I actually do have "less than 20/200 vision or vision restricted to 30 or fewer degrees"

So I am blind.

Riker

@Pavel 20/200?

you have less than that?

20/20 != 20/200

Pavel

Yes

Riker

o_O

I have 20/25 or something like that

or maybe 20/15

whichever is worse than normal

Pavel

20/15 is better than normal

Riker

22:36

then 20/25

Pavel

It means you can see at 20 feet what normal people can see at 25

Oh wait I see. The definition says "cannot be corrected to better than 20/200"

So I'm not blind!

Yay!

Riker

lol

Downgoat

Is this still too blue?

Riker

yes

looks like win10

shudders

Downgoat

:( minimalistic design is hard

Pavel

22:43

Windows 10 is beautiful

user165474

Make the background transparent. That way people see whatever's behind their computer.

flawr

Windows XP was beautiful

Pavel

@Downgoat I think it's fine, if a little boring.

You could try making instead of a solid background some simple design out of squares or something.

Down Wat

@Pavel HERESY ALL HAIL LORD ARC

Pavel

@DownWat Hey, I use Arc, but Windows 10 is still amazing.

Down Wat

22:53

Why not get Arc for Windows 10 then?

Pavel

Though it apparently got jealous because it nuked my Fedora install I was dual-booting

@DownWat Too much effort, don't use Windows often enough.

Down Wat

ehh

Pavel

23:18

CMC: Given a directory containing more than 2 files, uniformly randomly shuffle the filenames without touching the contents. (e.g. if a directory contains files a, b, c with the contents 1, 2, 3 respectively; you might cause the directory to contain files b, c, a with the contents 1, 2, 3 respectively.)