The Nineteenth Byte

Mistah Figgins

6:12 PM

It amazes me how far this challenge has come

Pavel

HOW DID THEY FIT C++ IN THERE

HOW IS THAT VALID

Mistah Figgins

I have no clue

Kritixi Lithos

TIO's cache is really helpful when running all the programs in the polyglot

Mistah Figgins

It has a score of about 0.01532 if it was submitted here

Not the best, but by far the most languages

Pavel

So much yes

Mistah Figgins

6:16 PM

I had participated in the beginning, but now its just too time consuming

I guess it's partly my fault for posting hexagony

I feel like its kinda like playing jenga, where you have to push pieces in instead of pulling them out without it all toppling over

Pavel

And one of the pieces is a hexagon for no reason

Kritixi Lithos

My latest submission to the polyglot was post #15. Soon there were some very difficult languages *cough*Hexagony*cough* that I just gave up

Pavel

I'm just amazed that C++ compiles

Mistah Figgins

@KritixiLithos Yeeeeaaaaaah. sorry about that :)

Welp, time to work on a cubix solution! ;P /s

LliwTelracs

@KritixiLithos You should clearly try again now that there are languages like incident in there too

Pavel

6:22 PM

Someone, someday, will add malbolge. They will lose for breaking the chain, but showered with bounty awards.

Mistah Figgins

Possibly after the challenge has officially ended

Pavel

Hmm.., yeah.

Riker

SE IS DOWN

PANIC

Mistah Figgins

I feel like this challenge is so popular that people will continue to post after there is a winner, just for fun

Riker

nvm it's back up

Pavel

6:24 PM

@MistahFiggins Most certaintly, yeah.

betseg

@Riker then you can you write messages 🤔

Mistah Figgins

I mean, if I get the time I certainly might

Pavel

TIL Ubuntu has a feature for installing updates without a restart.

Kritixi Lithos

The last time SE was down chat was working fine...ish

Pavel

This is the best day of my life.

Riker

6:25 PM

@betseg chat is still up generally

Kritixi Lithos

˙

Riker

the message I got said "down for maintenance", and generally chat stays up for that

betseg

@Pavel you mean seperate packages or the whole distro update?

New Main Posts

0

Q: Is this Sequence Graphic?

A graphic sequence is a sequence of positive integers each denoting the number of edges for a node in a multi-graph. Each integer in the sequence refers to a different node in the graph and no node does not have a corresponding integer. Not all sequences are graphic sequences. For example any s...

0

Q: Alternating Power Fibonacci Sequence

Definition The Alternating Power Fibonacci Sequence is formed as follows. Start with the empty sequence and set n to 1. Compute fn, the nth unique, non-negative Fibonacci number. 0 is the first, 1 is the second, 2 is the third. All others are obtained by summing the two previous numbers in the...

code-golf math sequence array-manipulation fibonacci

Pavel

@betseg "critical kernel patches"

betseg

6:28 PM

It's like that since Linux kernel 4.0

DJMcMayhem

@NewMainPosts inb4 5 byte jelly solution

Poke

@DJMcMayhem probably more like 3

Pavel

@betseg I switched from windows yesterday

betseg

Ah, I get it now. What I meant to say is that all distros have this feature.

Poke

fib, multiply by -1, repeat n copies

something like that

idk

DJMcMayhem

6:31 PM

That actually sounds like a fun game. Given a new challenge on main, make bets about how long the shortest jelly answer will be

I think this one looks to be around 12-15

betseg

Or make bets egg? :3

Riker

lel

Kritixi Lithos

@DJMcMayhem I'm guessing 1 for fibonacci + 1 negation + 2 for duplication + 1 for returning the result. So 5-9 bytes

betseg

Inb4 Mathematica has a built-in that's longer than Jelly

Pavel

Maybe by chaining two together, but I don't think so.

Mistah Figgins

6:42 PM

What is the general consensus on command line arguments with polyglots? do they have to be the same for all programs?

Pavel

isn't one

Mistah Figgins

Should i post on meta?

betseg

I would

Pavel

sure

Mistah Figgins

6:54 PM

What is the defaults tag for in meta?

Riker

?

the tag on meta?

Mistah Figgins

yes

Riker

hmm defaults

cool needs the hyphen in meta-tag

Mistah Figgins

0

Q: Command Line Arguments in Polyglots

It occurs to me that There isn't really a general consensus on how command line arguments should be treated in polyglots. So... What should the consensus on command line arguments in polyglots be? I see 2 main options: The command line arguments should be the same for all of the programs The ...

discussion policy defaults

Any changes to the question that you would make?

Riker

CALLED It

SE IS DOWN

PANIC

Mistah Figgins

6:58 PM

oop. well then

Business Cat

I'm still able to browse it though?

Mistah Figgins

Meta still works

It all still works?

Riker

t's back

Mistah Figgins

Enough panic

Business Cat

They should write "Don't Panic" in large, friendly letters on that screen

New Meta Posts

7:03 PM

0

Q: Command Line Arguments in Polyglots

It occurs to me that There isn't really a general consensus on how command line arguments should be treated in polyglots. So... What should the consensus on command line arguments in polyglots be? I see 2 main options: The command line arguments should be the same for all of the programs The ...

discussion policy defaults

New Main Posts

8:04 PM

1

Q: Should I Fold this Hold'em Hand?

Your friend invited you to a high-stakes poker game at the last minute and, as a computer scientist, you've decided to use your skills to gain an edge on the game. Your task will be, given 2 cards (your hand) and 0, 3, 4 or 5 cards (the dealt cards), you must decide what the best possible hand yo...

code-golf combinatorics permutations card-games

Anonymous

> This was in the sandbox for 2 weeks and got 3 likes and 1 piece of constructive feedback.

Anonymous

It's sad that needs to be said. This is why I quit using the Sandbox.

Anonymous

Well, that, and people upvoting a challenge of mine that had a glaring issue

AdmBorkBork

@Mego Does that need to be said, though?

Anonymous

Possibly not, but I'm not going to edit it out

Anonymous

8:09 PM

I'm not going to get in a fight this early :P

Riker

do we need that text in the new main posts?

i edited it out

er, okay then, consensus is we don't

AdmBorkBork

@Mego Fighting? Isn't that all the Interwebs are good for these days? :-/

Riker

that and playing MMOs

Anonymous

Internet! What is it good for? ~~Absolutely nothing~~ Cat GIFs!

AdmBorkBork

That's true. Cat GIFs are like the universal bringer-together-er.

(so long as you don't say the term out loud)

Kritixi Lithos

8:12 PM

Jan 6 at 19:20, by Kritixi Lithos

> The Internet, the villain behind corrupting people’s lives, is destroyed. Is it for the better… or the worse…

Anonymous

A friend of mine used to argue with me a ton over the pronunciation. She said "jif", I say "gif". We came to a compromise: "peanut butter"

Anonymous

Low quality GIFs are chunky, high-quality ones are creamy

8

DJMcMayhem

Same deal with my friend, except that he came to the conclusion that it's "a moving PNG"

Riley

@DJMcMayhem Do you pronounce that P-N-G or ping?

Anonymous

P-N-G

Anonymous

8:19 PM

A ping is something else entirely

Anonymous

And "pung" sounds dumb

TuxCopter

Why not [png]? Syllabic ns are a thing

Riley

I've always said P-N-G, but a coworker says ping.

AdmBorkBork

@TuxCopter I'm not sure I approve of a file format name that sounds like I was just punched in the stomach.

betseg

Nice try, WolframAlpha.

DJMcMayhem

8:20 PM

@Riley yes

(the first)

AdmBorkBork

@DJMcMayhem MNG or APNG or one of the handful of other extensions are all something totally different.

betseg

@DJMcMayhem yup, currently 5

Business Cat

I've heard peng before

DJMcMayhem

o_O

Anonymous

@BusinessCat Hi

DJMcMayhem

8:26 PM

I didn't know about that. I'll have to give him crap about that

Business Cat

@Mego Hello

Anonymous

No that was a reference to peng

Anonymous

Hello I am penguin

TuxCopter

Me too o/

Business Cat

There's too many penguins and cats in here.

Riker

8:27 PM

wot?

never too many cats

TuxCopter

And never too many penguins

Business Cat

You got me there

betseg

But too little droids ;_;

TuxCopter

The sith army has a good stock of droids

AdmBorkBork

@Mego So if I take a picture and save it for use on the Internet, am I penguin it?

Anonymous

8:29 PM

@AdmBorkBork No. That's just silly.

AdmBorkBork

Oh. OK.

Poke

8:39 PM

pingu?

Business Cat

.noot

Poke

noot noot!

AdmBorkBork

@Mego What about that episode of MacGyver, where they "bitmap it?"

Riker

@Downgoat

2545

Q: Proper use cases for Android UserManager.isUserAGoat()?

I was looking at the new APIs introduced in Android 4.2. While looking at the UserManager class I came across the following method: public boolean isUserAGoat() Used to determine whether the user making this call is subject to teleportations. Returns whether the user making this call...

java android usermanager

3

wat

8:57 PM

tfw you boot your Arch Linux flash drive on a school computer

and the staff approves of it

Pavel

9:08 PM

I can boot into Ubuntu on my school computer, but I can't install it. Ultimately, not all that useful, considering I can't really do any work.

muddyfish

@wat when I was doing that sort of thing, I just brought in my own hdd and replaced it with the built in one. It somehow worked

Pavel

@muddyfish Why would that not work?

muddyfish

@Pavel I'm not sure why it wouldn't but I was surprised

different processors?

Pavel

That's not how HDDs work

muddyfish

@Pavel I meant booting from it

Pavel

9:12 PM

The only thing that could prevent you from modifying the system was written to the hard drive you just removed.

muddyfish

@Pavel different instruction sets.

Pavel

Huh, in my experience HDDs are universally compatible with all computer hardware.

@Pavel they are

9

So what's the issue?

9:14 PM

I was talking about the os installed on the hdd

Pavel

Oh I get it now.

muddyfish

@VoteToClose the lowest I have is policy at -1

DJMcMayhem

The lowest that shows up for me is answers at 19.

muddyfish

@DJMcMayhem you can do [meta-tag:tag-name]

VoteToClose

It'd be +2 if it counted questions, but noooo.

muddyfish

9:18 PM

@VoteToClose if it counted questions, I'd just tag my best questions as some random tag and reap the copper badges

VoteToClose

@muddyfish But that'd be untagged by some editor quickly. ;)

muddyfish

@muddyfish why not just retag the questions where you have good answers? That's much simpler

Christopher Peart

9:39 PM

Well I was just royally screwed

wat

@Pavel I actually installed it on the flash drive. I used the "Multiboot USB drive" guide on the Arch Wiki.

Christopher Peart

So my Dad is buying a Miata MX-5 Rf LE

I was going to go pick it up with him and ride back in it

wat

I have Linux ISOs in an ext2 partition. I also have a btrfs partition with subvolumes for /arch (arch root), /ubuntu (ubuntu root), and /home (shared home)

Christopher Peart

The school didn't give me the note saying to go to the pick-up line

thanks school. Now I am stuck at home with extra chores to do

wat

@ChristopherPeart i feel

Christopher Peart

9:44 PM

I have spent the past hour and thirty min trying not to be pissed

I failed

VoteToClose

@VoteToClose Was not expecting so thorough a starring. o.o

Pavel

@ChristopherPeart Play ToS, guaranteed to redirect your salt in minutes.

Christopher Peart

Tos?

Pavel

Town of Salem

Christopher Peart

yeap

ToS always makes me salt

How To Be A College Student

►

Riker

9:52 PM

@Pavel or dota

Christopher Peart

That helped a little

Don't even get me started on Dota

I love the game

Pavel

@Riker That takes time and effort

Christopher Peart

But the internet is not working for it

Pavel

Also, I'm not done crying over what happened with Alliance after TI.

Riker

@ChristopherPeart dota is salt mine confirmed

Christopher Peart

9:53 PM

yep

Pavel

IT WAS GOING SO WELL

Does anyone know the complexity of generating a randint from 0 to n, in JS?

Christopher Peart

super easy

floor(random(0,n));

Pavel

That's not what I meant by complexity.

Christopher Peart

oh

Riker

he means like O(n) vs O(n^n) vs O(inf)

i made those last 2 up

Pavel

9:59 PM

Well, I understand how you made the last one up, but I can imagine O(n^n) being a thing.

Probably got someone fired.

VoteToClose

@Riker O(inf) could actually be a thing tho. Just means that, for all n, it takes infinite time and processing.

ATaco

I can't think of a problem that can only be solved in O(2^n)

Sp3000

O(n^n) is definitely a thing :P

Pavel

@ATaco iirc, generating the nth prime.

@VoteToClose Like calculating pi

VoteToClose

@Pavel I suppose.

ATaco

10:01 PM

I think any O(inf) program doesn't even serve a practical output.

VoteToClose

Though I suspect you would use another O value - O(f(n)) where n is number of digits calculated.

ATaco

Oh, Fibonacci numbers are O(2^n)

Pavel

I checked CS.SE, everyone says that the complexity of generating the Nth prime is NlogN because you should be doing a lookup in a table. Which is not even remotely helpful.

ATaco

It's kind of helpful

Pavel

I suppose. Wikipedia says O(N*Log(Log(N)), which is far faster than I expected.

DJMcMayhem

10:07 PM

CMC: recommend a band/artist for me to listen to right now

Pavel

And I think wrong

@DJMcMayhem MDK

Since doing a lookup in a table is slower than that

ATaco

The Naïve approach to test Primacy is to use for (int i=0; i<sqrt(n); i++), but if you're getting as many primes as possible up to a certain number, you can iterate only over the primes you already know, instead of the for loop.

Pavel

Which is annoying.

flawr

@Pavel We know that the pi(x) is bounded by cx/log(x) (fora known c). We just Need to compute the primes up to cx/log(x) and count them. (Using a sieve method.)

Christopher Peart

So I went from angry scale 500 /10 to 300 /10

Pavel

10:08 PM

Oh I get it, it's O(N/(Log(Log(N))))

Which seems more reasonable

Christopher Peart

That is a java way of calculating primes. I wrote dat to calculate the primes under 1 trillion

Pavel

maxValue + 1?

DJMcMayhem

@Pavel checking it out right now

Ty

Christopher Peart

Sieve of Eratosthenes

In mathematics, the sieve of Eratosthenes (Ancient Greek: κόσκινον Ἐρατοσθένους, kóskinon Eratosthénous), one of a number of prime number sieves, is a simple, ancient algorithm for finding all prime numbers up to any given limit. It does so by iteratively marking as composite (i.e., not prime) the multiples of each prime, starting with the multiples of 2. The multiples of a given prime are generated as a sequence of numbers starting from that prime, with constant difference between them that is equal to that prime. This is the sieve's key distinction from using trial division to sequentially test...

That is the method used it works super fast. You should try it

Pavel

Yeah, super fast is O(N/loglogN)

No one wants to answer my post ;-;

DJMcMayhem

10:14 PM

@ChristopherPeart it's fast, but that doesn't mean it's efficient. It takes a lot of memory

Pavel

I know it's only been 4 hours, so that's not unusual, but it still feels bad, you know?

f[x_]:=PrimeQ@x. EZ, O(1)

ATaco

ThatsCheating.txt

DJMcMayhem

@ATaco I hate to be whiny, but code blocks like that take up my entire screen. Could you post large (more then 5-6 lines) code blocks on gist or paste dump or something similar?

Pavel

More like ThatsNotHowComplexityWorks

ATaco

That's fine DJ, Although it suggests we may need to decrease the preview size.

DJMcMayhem

10:16 PM

Well, it's also cause mobile. I'm sure it's slightly better on desktop

ATaco

pastebin.com/47pzHzc1

Pavel

There needs to be a setting in SE to collapse oneboxes and large code blocks.

Christopher Peart

@DJMcMayhem don't you have infinity memory?

DJMcMayhem

Ah, that's much better thank you.

@Pavel That could be a nice userscript

Pavel

Maybe we should @Downgoat onto that. :P

DJMcMayhem

10:17 PM

@ChristopherPeart uhmmm, no. I have 8 gigs of memory

ATaco

I'd DL that.

Christopher Peart

Talking about the challange

DJMcMayhem

Oh, I didn't realize you were talking about a challenge

Pavel

Which challenge?

The Pyramid Scheme one? That has nothing to do with primes.

Christopher Peart

the prime one

Pavel

10:26 PM

2

mbomb007

10:42 PM

:O

Such clever cats. :D

Short look to the future: I'm 2 weeks away from getting the gold "Fanatic" badge.

New Sandboxed Posts

0

A: Sandbox for Proposed Challenges

You have an n day streak! Write a program that keeps track of the number of consecutive days it has been run. The day resets at midnight (the local time of the computer on which the program is run). If there is a day that the program is not run, the counter is reset to zero. Every time the...

mbomb007

@NewSandboxedPosts Considering I was just talking about the fanatic badge, that's quite the coincidence.

@Mego "Choosy developers choose GIF"

It's pronounced like jif

As in jiffy

DJMcMayhem

@mbomb007 I agree but we're far in the minority

New Sandboxed Posts

10:58 PM

0

A: Sandbox for Proposed Challenges

code-golf file-system compression Directory zipper Introduction Directories are really clunky and hard to deal with. You can compress them, but that takes valuable time and CPU cycles. How about a basic directory zipper? Challenge Make a program that when: Case 1 Given the name of a direct...

Anonymous

11:14 PM

@mbomb007 Choosy developers make their own image format

ATaco

Choosy developers cry because LWZ compression

wat

lwz?

quartata

Lempel–Ziv–Welch

Lempel–Ziv–Welch (LZW) is a universal lossless data compression algorithm created by Abraham Lempel, Jacob Ziv, and Terry Welch. It was published by Welch in 1984 as an improved implementation of the LZ78 algorithm published by Lempel and Ziv in 1978. The algorithm is simple to implement, and has the potential for very high throughput in hardware implementations. It is the algorithm of the widely used Unix file compression utility compress, and is used in the GIF image format. == Algorithm == The scenario described by Welch's 1984 paper encodes sequences of 8-bit data as fixed-length 12-bit codes...

feersum

Nope, that's LZW. wat asked for LWZ.

quartata

Can't say I've heard of that one

wat

11:19 PM

yeah i havent either

New Main Posts

0

Q: One 1, Two 1's, One 2 Two 1's

Challenge: Create a program that takes input of a positive non-zero integer and outputs the 4 next numbers in the sequence described below Sequence: Every number in this sequence (apart from the first, which is the input) shall be composed of n digits, where n is an even number. If we split th...