The Nineteenth Byte

ASCII-only

2:00 AM

@MDXF Maybe because people need to sleep?

MD XF

@ppperry "not entirely correct" = "valid"?

@ASCII-only Name one programmer that sleeps 13 hours

ppperry

this is getting ridiculous!

totallyhuman

yes

ASCII-only

@MDXF Name one person that spends their entire time awake on SO (i.e. during school/work/whatever as well)

totallyhuman

>_>

all people were thinking is

the sequence is really hard

ATaco

2:01 AM

I don't believe people use SO, Questions just show up and get answered by a highly trained bot.

totallyhuman

made by jon skeet ofc

ASCII-only

@totallyhuman nah it isn't it was just super confusing

@totallyhuman *Dennis

jon skeet doesn't make bots :P

MD XF

@ASCII-only Fine. HyperNeutrino commented on that answer four hours ago. Has another answer been posted to that OEIS challenge?

So HyperNeutrino was awake and on PPCG four hours ago

totallyhuman

@ASCII-only interchangeably that i what i meant yeah

MD XF

Guys. I'm not trying to make an argument. I'm just baffled by why the bytecount has to be 236, especially when there are three arbitrary spaces in the code!

totallyhuman

2:03 AM

it just seems to be impossible to compute

but it's not

that has been proven

yay smart people

ppperry

@MDXF because it came out to 236 bytes by chance.

MD XF

@ppperry Not by chance. By three unnecessary spaces in the third (or was it the fourth?) line

ppperry

no

MD XF

Then why is the third (or fourth) line indented so strangely?

ppperry

I did not add those spaces to make it a hard sequence

MD XF

2:05 AM

Yes I know but they don't need to be there

Oh it's way more than three

    (dotimes (count n result)
             (setf result (* m result)))))

ppperry

Because they were indented strangely on the StackOverflow answer I copied code (with proper attribution) from.

MD XF

That doesn't make it less unnecessary....

ppperry

-1

Q: Lisp Sum of power

Define a function "power" that takes two input arguments m and n, and returns m^n. Then, by using the function "power", define a function sum_power that takes two input arguments m and n and returns the sum: (1^n + 2^n + 3^n +.... + m^n). int first function i calculate power from given arguments...

lisp

edit that question if you think it's formatted poorly

I still won't change my bytecount, though

ASCII-only

@MDXF why not make it tidy

MD XF

@ASCII-only I tried

It got rolled back like three times

ASCII-only

2:07 AM

This is not a code find

MD XF

For ... no reason

ppperry

I rolled it back because I see no reason why you have the right to change my code.

MD XF

To make the next sequence not take three days for mathematicians to compute?

Or something like that?

Maybe?

ppperry

I was going to quote HyperNeutrino's comment about this, but it was deleted ...

ASCII-only

@MDXF is there anything wrong with that?

2

HyperNeutrino

2:09 AM

A mod nuked a few comments after I flagged it. But IIRC, caird (who we can't really ask) ruled that you can't change bytecounts randomly, unless your answer was completely incorrect, and Peter and Leaky both expressed similar opinions.

MD XF

@ASCII-only Yes. The difficulty of the next answer is artificial. The only reason it is so hard is because of incorrect lisp formatting

HyperNeutrino

@MDXF The challenge has almost died three times by now lol

ASCII-only

So now you have to check the next sequence is ready to compute now and pad with spaces?

@MDXF and what do you know about lisp formatting

MD XF

@ASCII-only Um.

totallyhuman

parens

MD XF

2:10 AM

What makes you think I don't know about lisp formatting?

totallyhuman

lots of them

ppperry

@MDXF The only reason it is so hard is because I didn't arbitrarily reformat code I copied from StackOverflow

totallyhuman

that's about all i know

ASCII-only

@MDXF well do you know lisp

MD XF

@ppperry arbitrarily?

You mean properly format?

ppperry

2:10 AM

there was no need to

lisp is a whitespace-ignorant language

MD XF

There is no need to properly format code. *sighs*

ppperry

the code works just fine

ASCII-only

@MDXF this is PPCG not CR we don't follow conventions here

5

MD XF

@ASCII-only I've read the O'Reilly book on it

Oh FFS this is stupid

ppperry

Also, I think I found a visual glitch.

On the question, caird shows up with one rep and no badges

ATaco

2:12 AM

I've added support for ++, +=, --, -= in MaybeLater

ppperry

but his userpage shows 1 gold badge, 12 silver badges, and 44 bronze ones.

totallyhuman

because he's suspended

ppperry

still, it's an inconsistency

totallyhuman

that's how suspended users are displayed

ppperry

but why does it show the badges on the userpage, then

totallyhuman

2:13 AM

eh maybe

ASCII-only

@MDXF so the way in the O'Reilly book is the only acceptable way?

totallyhuman

i think that when somebody wants to look specifically, they can find out

ppperry

Why don't you just edit the code on the StackOverflow question if you think it has excess indentation

ASCII-only

@ppperry idk, probably resetting rep is a good enough indication of suspension

Also it's not as easy to hide badges

ppperry

@ASCII-only But the badges are hidden on the question

ASCII-only

2:16 AM

@ppperry oh ok huh

ppperry

this is off-topic

HyperNeutrino

Also guys please don't publicly discuss suspensions. Thank you very much :)

ppperry

I wasn't.

I was discussion visual glitches associated with suspensions.

ATaco

Itsafeaturethough

HyperNeutrino

Just a reminder for those who might not have known.

ಠ_ಠ the paper for the OEIS sequence won't load so I can't read it

The CMS one isn't loading but the AMS one works :D

ASCII-only

2:19 AM

@MDXF if there's anything you should complain about it's the 1 byte solution because sequence 1 was so hard it had to be hardcoded

@HyperNeutrino which one

HyperNeutrino

oeis.org/A000236

ams.org/journals/mcom/1970-24-111/S0025-5718-1970-0277469-8/…

ppperry

@ASCII-only Er, can I claim inconsistent enforcement of the rules?

totallyhuman

nope

ppperry

Or was that sequence not just hard, but noncomputable

ASCII-only

@ppperry ???

totallyhuman

2:20 AM

rules allow it

ASCII-only

@ppperry no it's just really complex

totallyhuman

hardcoding till a 1000 i think

HyperNeutrino

You can hardcode the first 1000 values.

totallyhuman

@HyperNeutrino ninja'd

HyperNeutrino

But there aren't 1000 values yet for this sequence

@totallyhuman >.<

ATaco

2:21 AM

Is that n=1000 or f(n)=1000..?

totallyhuman

$0\leq n = 1000$

ppperry

n=1000

ATaco

Because we physically do not know $f(1000)$ in this case.

HyperNeutrino

ppperry

why did there have to be three answers

totallyhuman

2:21 AM

@HyperNeutrino don't try to out do my latex >_>

ASCII-only

@ATaco A236? Yeah which is why we couldn't hardcode it

HyperNeutrino

The first 1000 values doesn't include $f(1000)$ because it's 0-indexed

ASCII-only

Oh ok

totallyhuman

arrrgh

i messed it up

stupid edit time limits

ppperry

...

HyperNeutrino

2:24 AM

anyway brb in a bit I'm going to re-read through the entire email

ASCII-only

@totallyhuman wait is leq even a thing

ppperry

good news; you still have a few more days

totallyhuman

@ASCII-only yes

ppperry

and Taxi is a great language to win!

totallyhuman

$0 \leq n < 1000$

final answer

:P

ppperry

2:25 AM

nope

didn't work

totallyhuman

what didn't work?

ppperry

the math formatting

totallyhuman

oh you need a userscript for that

it's not built-in

ppperry

This code is hard to read. You need to format it. — Rainer Joswig Apr 14 '15 at 18:48

totallyhuman

github.com/TehFlaminTaco/TacosUserscripts/blob/master/…

ppperry

2:27 AM

no. HyperNeutrino's math renders fine for me

HyperNeutrino

I used the userscript to generate the image.

ppperry

oh

HyperNeutrino

totallyhuman puts the code which relies on the userscript on your side to render the MathJax

ASCII-only

@everyone if you could choose a SE link shortener domain what would it be

HyperNeutrino

Mine can't inline and it's a lot bigger but it doesn't rely on you having userscripts

ppperry

2:28 AM

s.tk

one already exists

117

Q: What shortened URLs are available through s.tk?

It was announced on the Stack Exchange Podcast episode #23 (at 1:05:26) that Stack Exchange has its own URL shortener, http://s.tk/. Users can't create their own, they can only use the ones that are built-in. What shortened URLs are available through it? Return to FAQ index

support faq hyperlinks s.tk short-links

ASCII-only

@ppperry eh it's too long

ppperry

er, no...

HyperNeutrino

yay our URL is decently golfed

instead of s.tk/codegolf as in codegolf.stackexchange.com, it's s.tk/golf :D

s.tk/pcg would be better though

wtf?

deleted

it literally got posted, downvoted once, and deleted within a minute

ppperry

probably some error in the spec that the user deleted to fix

HyperNeutrino

it was sandboxed though, why not fix it in sandbox?

probably didn't get any review though :I

totallyhuman

2:33 AM

erm a new post was posted and then immediately deleted

HyperNeutrino

@totallyhuman you appear to have missed what I just said? xD

ASCII-only

@ppperry not the domain, the paths

totallyhuman

@HyperNeutrino oh >_<

ppperry

is nine characters too long

Destructible Lemon

do we have a prime number base challenge?

totallyhuman

2:34 AM

idk

Pavel

From man which: --help: Print usage information on standard output then exit successfully.

From which --help: .code.tio:which:1: bad option: -h

ATaco

Yay, My Userscripts

Destructible Lemon

> The sequence of primes, along with 1, is a complete sequence; any positive integer can be written as a sum of primes (and 1) using each at most once.

New Main Posts

0

Q: Thirty-one Oddities

Prolog In the very fun and well-known card Thirty-one, each player holds three cards from a French deck (the Wikipedia article suggests a deck containing 52 cards, I, however, play it with 32). The game is played in successive rounds, with each player having a number of lives which decreases whi...

code-golf math

HyperNeutrino

@Pavel Did you namechange or have you just been away from chat for a long time?

totallyhuman

2:35 AM

@ATaco $yes$

Destructible Lemon

meaning you could use binary to show which prime numbers are used in the sum to represent any number

Pavel

@HyperNeutrino I'm Phoenix

HyperNeutrino

Thought so

ASCII-only

@ppperry also I'm looking for the shortest question/answer path shortener

totallyhuman

i just solved the stupid lol challenge

pls undelete pls

ASCII-only

2:36 AM

PPCG free domains are taken :(

Idk if I should use something else like cgolf or something

totallyhuman

would it be inappropriate to vote to undelete it?

Destructible Lemon

yeah this seems like a good challenge... it could even be a good challenge with fibonacci numbers instead of primes

ASCII-only

Actually I can use ppcg.me

ATaco

I can set up ppcg.a-ta.co

Pavel

That would be great

HyperNeutrino

2:41 AM

@totallyhuman Typically it is discouraged to undelete questions that were deleted by OP, especially if they have downvotes.

ppperry

ppcg.ga already exists

is self-deletion the only time when a question can be deleted but not closed?

totallyhuman

aw :c

Pavel

I can't access s.tk/golf. I need the https://

totallyhuman

i was going to upvote it though

speaking of domains, i should check if any of mine need renewal...

ASCII-only

@ppperry yeah but it's DNS level so doesn't support paths

totallyhuman

2:45 AM

pleasewakeup.tk

lol

ATaco

Even shorter version of that one sequence: wheni is*i=(printi)+j++i=1

Step Hen

@Pavel cQuents, =1:$+z-1, probably golfable

totallyhuman

@StepHen it's your own language though

ASCII-only

Hmm would anyone even use a PPCG link shortener

Step Hen

@totallyhuman I mean I could golf it if I was more awake

since no one knows it

@totallyhuman I couldn't figure out how else to not output triangular numbers

totallyhuman

2:49 AM

i also have observefailure.tk

lol

Step Hen

@Pavel Alternately, =1$0:$+z

totallyhuman

very suitable domain for its current state

ATaco

I've added ppcg.a-ta.co and tnb.a-ta.co TTL is 30 minutes.

totallyhuman

wish i knew html and stuff better though

Step Hen

@totallyhuman html's easy :P

it's the css and javascript that makes it "difficult"

totallyhuman

2:51 AM

ye but you still need to learn it

also yes css is a PITA

ATaco

<HTML><head><script>/*Generate the webpage here*/</script></head><body></body></HTML>

Step Hen

eh not once you've used it enough

@ATaco booo

@ATaco don't forget to use jQuery

ATaco

many a-ta.co sites use <HTML><head><script type="server/js">/*Generate the webpage here*/</script></head><body></body></HTML>

The third highest voted CSS question on SO is how to horizontally center a div.

Step Hen

@ATaco I still get screwed by that sometimes, when it doesn't work the way I want it to

no wait

I get screwed by having a left-aligned div and a right-aligned div in the same row

ATaco

CSS is sadness.

It's a fact

Step Hen

2:57 AM

I love the flexibility of working with the DOM with jQuery/CSS selectors

I hate the separation of HTML and CSS for when I want stuff to just work

ATaco

Dom is great, Everything else sucks.

JQuery sucks too, but I still love it.

totallyhuman

i should probably just use some template

Step Hen

@totallyhuman why, it's not that hard to style a site

Add a header and a footer, a different color from the background

ATaco

i.reddituploads.com/…

Step Hen

then add a div in the middle

totallyhuman

2:58 AM

meh i like doing python code more than doing html

Step Hen

@totallyhuman quora.com/How-do-you-use-Python-to-make-websites

totallyhuman

django or something i presume

still meh

ATaco

totallyhuman

> Where are my legs?

can relate 10/10

!google portfolio website template

argh wrong chatroom

ATaco

ppcg.a-ta.co is now live. Enjoy that shortcut

totallyhuman

3:03 AM

'bib', 'bob', 'bub'

"lol" variants

ATaco

'kek'

MD XF

@ppperry um, exactly?

totallyhuman

'kak', 'kek', 'kik'

ATaco

'queq'

totallyhuman

that's 4 letters :P

Destructible Lemon

3:04 AM

0

A: Sandbox for Proposed Challenges

Prime encode integers! In this challenge, you must convert inputted integers into a prime encoding. The sequence of the primes, and 1, is a complete sequence (We're going to consider 1 an honourary prime for this challenge). What this means is that it's possible to express any positive integer ...

ATaco

We sacrifice brevity for clarity

totallyhuman

@DestructibleLemon wait for NSP 0/10

ATaco

@ATaco Oh wait this isn't CodeReview

Destructible Lemon

but nsp is slow

totallyhuman

'qaq', 'qeq', 'qiq'

'dad', 'ded', 'did'

MD XF

3:09 AM

Oh and all my messages when ppperry was in this room 'cause I can't stay level-headed

Destructible Lemon

@ATaco mezzacotta.net/garfield/?comic=1038

ATaco

XD

Destructible Lemon

I made a sequel to that that I submitted to sromg

do you want an early viewing of it?

totallyhuman

yes

Destructible Lemon

hmmmm... I am considering whether this is a good idea...

totallyhuman

3:12 AM

c.o.n.s.i.d.e.r.a.t.i.o.n. is a good thing

i still think monospace is pleasing enough to be the norm

brb adding a stylish theme to change every font to monospace

ATaco

$(document.body).append($("<style>.message{font-family:monospace;}</style>"))

Pavel

@ATaco It renders fine in TNB, but you know how if you're in a room it shows the last message in other rooms you're in? It renders as chatjax there, please fix.

New Sandboxed Posts

0

A: Sandbox for Proposed Challenges

Prime encode integers! In this challenge, you must convert inputted integers into a prime encoding. The sequence of the primes, and 1, is a complete sequence (We're going to consider 1 an honourary prime for this challenge). What this means is that it's possible to express any positive integer ...

ATaco

@Pavel Nah

ASCII-only

@ATaco 0/10 doesn't shorten :P

@ATaco is that banb upside down

ATaco

3:20 AM

qauueq is now rather important to me.

DJMcMayhem

@MDXF If you're ok waiting a little over an hour :P

Phones are stupid

Riker

should I do it @DJMcMayhem?

ATaco

$(document.body).append($("<style>.message{font-family:Brush Script MT;}</style>"))

Riker

I got some of it @MDXF

MD XF

@Riker Thanks

ATaco

3:30 AM

This font is absolutely unreadable

I love it

Pavel

It's lovely, but how do you make the size bigger?

I am CSS noob

ATaco

font-size: 18pt

I don't recommend it, it makes everything bigger.

Pavel

It does, but at least it's readable now.

ATaco

arguably.

Pavel

It's prolly smaller by default on my screen than yours

Mine's 1440p

ATaco

3:34 AM

No, it's very much so unreadable before, too.

Pavel

Well, it's readable to me now.

And it wasn't before.

ATaco

I suppose I am reading it.

Just not very easily.

ASCII-only

@ATaco make it comic sans so you can read it

or this: deskarati.com/wp-content/uploads/2011/10/… deskarati.com/2011/10/27/deskarati-alphabet

MD XF

@ATaco ay sounds like dyslexics

Where's that biweekly contest for undervoted answers?

Also, can we have a contest for overvoted answers that deserve downvotes (in exchange for upvotes on better ones) or something like that?

Pavel

3:53 AM

@MDXF A certain answer relating to segfaults comes to mind.

MD XF

@Pavel Two now actually >.<

They're both my top voted answers :(

I mean I enjoy the meme but other than that it's really annoying

(It's also funny because right now I have no f*cking idea why my interpreter is seg-faulting)

On a completely unrelated note, does anyone have a C compiler handy and nothing to do?

ASCII-only

@MDXF dennis has a TIO handy :P

MD XF

I doubt Dennis ever has nothing to do

He's got at least fifty challenges he can pwn at all times

ATaco

Topic: Interesting computer customisations.

I have 10 clipboards.

MD XF

HOW

ATaco

4:06 AM

Autohotkey

It's incredibly useful.

Although I'm only really using at most 5 at a time.

MD XF

Ah

Topic: Computer pet peeves

When people call AutoHotkey AHK

ATaco

But it is AHK

MD XF

no AHK is the file extension

ATaco

Literally the front page of the site.

Destructible Lemon

A uto H ot K ey

Maltysen

4:10 AM

@ATaco I have large amounts of tape on my laptop lid because the hinge is completey busted :(

MD XF

Meh

Hey, the C file extension is on the front page of everything referring to C ever :P

Tobi

is anyone good at phsyics

ATaco

Not according to my ATAR

MD XF

I wish I was good at physics

And math

Maltysen

@Tobi are you asking for ur brownian motion?

Tobi

4:21 AM

the brownian motion thing was just a jk lmfao

MD XF

Btw, does anyone know if the site-specific mod chatrooms are special, or are they just typical gallery chatrooms?

Tobi

Im asking for the program

ATaco

Ah yes, the physical property of penguins bouncing off icebergs.

2

Albert Einstein: The Size and Existence of Atoms

►

Pavel

@ATaco Ok I just opened this tab and saw that

That's great

No context needed

ATaco

Physics.

Anonymous

4:24 AM

@MDXF They're private rooms - only mods and users with explicit access can even see them. Also non-mods can't be added as ROs - the system purges them every so often.

MD XF

@Mego Oh okay, thanks

In what case would a non-mod be given access to a private mod room?

Anonymous

@MDXF A mod needing to communicate privately with a user about moderation stuff is the typical use case.

MD XF

Hmm, wouldn't it be wiser to just create a new room, such as Discussion between <normal user> and <mod>?

So that the normal user wouldn't have access to the mod room's history?

Anonymous

@MDXF They do create a new room, but they make it private because PII is usually involved.

Anonymous

Mods have the ability to create new private rooms

MD XF

4:27 AM

Ohh okay, got it

Maltysen

@Tobi yeah that's what i meant

what's ur question?

Tobi

Im trying to calc bounce of two colliding circles

before, I was treating all collisions as head on

i want to take into account angle of collision

MD XF

@Maltysen whoa you're pretty high-rep, how come I've never noticed you

Maltysen

@MDXF i haven't been that active lately, summer research project

also, hi

MD XF

Ah

Hi :P

Maltysen

4:34 AM

@Tobi these are elastic?

Tobi

yh

MD XF

I'm new, I became active three or four months ago

Maltysen

i think u can use conservation of momemtum

seperate velocity into component vectors

get momentum component vectors

Tobi

thats what im doing

but im stuck

Maltysen

add them up

@Tobi well v=<cos(theta)*|v|, sin(theta)*|v|>

Tobi

4:35 AM

I split the velocitty into the components

Maltysen

and p=mv

u do for both

Tobi

paralel to collision and perp

Maltysen

p=p1+p2

@Tobi doesn't matter as long as its same refernce frame for both

then new p1 p2 = p/2

and then v1=p1/m1 v2=p2/m2

@Tobi why not stick with global x y basis?

@Tobi u following?

New Main Posts

0

Q: please help me to understand this type of question ,what am i do?

you will be given 3 integers as input.The input may or may not be different from each other. you have to output 1 if all three inputs are different from each other, and 0 if any input is repeated more than once.

array-manipulation

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