The Nineteenth Byte

Calvin's Hobbies

4:00 AM

One more little PPCG quiz

(results?)

Alex A.

shit i got rekt

Doorknob

ah jeez how do I do 9

quartata

Oh, nevermind.

Doorknob

you serious? I guessed one off from the correct number

@Calvin'sHobbies 7/10, missed #1/6/9

Maltysen

omg i falied that

quintopia

4:02 AM

@Calvin'sHobbies 4/10

(not bad for a noob eh)

i don't even know what a Dennis number is

Doorknob

it was a challenge

Calvin's Hobbies

I just hope everyone got 4

Doorknob

I hope everyone got 10...

Calvin's Hobbies

40

Q: Generate Dennis Numbers

This challenge is a tribute to PPCG user Dennis for winning the robbers' part of The Programming Language Quiz. Looking at Dennis' PPCG profile page we can see some pretty impressive stuff: He currently has over thirty-seven thousand reputation, making him second in rep overall, surpassing th...

quartata

8/10

Calvin's Hobbies

4:03 AM

@Doorknob That too

quartata

I actually got 7/10 because I didn't read the last question carefully enough

But I don't count it since it was subjective anyways

Guess that means 7/9

Doorknob

@quartata ಠ_ಠ

2

NOT SUBJECTIVE

quartata

Jeez the font is hard to read

Calvin's Hobbies

You mistook Code Review for PPCG?

Doorknob

By the way, more people need to join dystroy.org/miaou/1216?PPCG_off-topic_chatter. :P

quartata

4:05 AM

@Calvin'sHobbies No

I thought it said is PPCG worse than Code Review or something

It's late I'm not thinking too clearly jeez

Star troll

Dennis

Ugh, 7/10.

Doorknob

Seems to have a hard upper limit of 7 :P

quartata

I guessed what trichoplax used to generate his avatar correctly

Alex A.

I knew that one. I remember the challenge.

quintopia

I did not. I do not know who trichoplax is.

Doorknob

4:09 AM

I just knew he used Turtle

which is a Python thing so ¯\_(ツ)_/¯

Anonymous

8/10!

Calvin's Hobbies

o!o

Doorknob

@Mego hax

Anonymous

@Doorknob no hax just brainz

Dennis

Liars! Cheats! Off with their heads!

Doorknob

4:10 AM

@Mego u haz 2 meny brainz

quintopia

you had brains enough to wait until we said all the answers before taking it ;P

Anonymous

No, I had brains enough to wait to take it until I finished taking out the trash

quintopia

smart

Anonymous

I wish you could see the answers you got wrong after the quiz ends

Doorknob

I got 1,6,9 wrong

Anonymous

4:11 AM

Because I've already forgotten which 2 they were

Doorknob

@Mego You can, right? Just look at the bottom thingy

Anonymous

Anonymous

I don't see a bottom thingy

Anonymous

I missed the one about the origins of code golf

Anonymous

Because I thought it was APL for some dumb reason

Anonymous

4:13 AM

Even though I knew it was Perl

quartata

@Mego APL was technically the first one to have such a sport.

But they didn't call it code-golf.

Anonymous

@quartata That's what I was thinking

quartata

Read the question carefully, it asks where the phrase came from

Anonymous

Yeah

quartata

In this case, it came from Perl

El'endia Starman

4:13 AM

@Calvin'sHobbies 8/10 WOOHOO! I guessed the number of 20k users!!! :D

Calvin's Hobbies

What are people getting wrong mostly?

Doorknob

@El'endiaStarman I was one off! (╯°□°）╯︵ ┻━┻

Anonymous

I knew the # of 20k users because I was looking at the leaderboards just before I took the trash out :P

Doorknob

@Calvin'sHobbies 1/6/9

El'endia Starman

I got the BF derivative and the code golf origin ones wrong.

quartata

4:14 AM

I got BF derivative and 20k users wrong.

Anonymous

Oh yeah the BF derivative was the other that I missed

Anonymous

I thought they all were so I guessed

El'endia Starman

What'd you guys guess for the BF derivative one? I guessed RoboCritters because I figured Lenguage was one and so was Brackit.

Calvin's Hobbies

@quartata Those are tricky

Doorknob

I guess RoboCritters too

Anonymous

4:15 AM

@El'endiaStarman Same

Calvin's Hobbies

14

Q: Translate RoboCritters into Brainf***

RoboCritters (etymology) is a brand new esoteric programming language (don't bother searching for it, I just invented it). It's a variant of Brainfuck (BF), slightly more complex than the usual operator substitution schemes. Every program in RoboCritters is a rectangular grid of text that only co...

code-golf ascii-art brainfuck code-generation

;D

Anonymous

I should create a quiz

Calvin's Hobbies

^

I want to try one where I don't know the answers

Alien G

In the future, will humanity be able to calculate where butterflies are based on current wind patterns?

quintopia

I could write a quiz based on languages from the esolangs wiki. @Calvin'sHobbies are you up to date on those?

El'endia Starman

4:19 AM

@AlienG 1) Theoretically or practically? 2) How far in the future?

Calvin's Hobbies

@quintopia Not the ones that don't get posted here, but go for it!

Alien G

@El'endiaStarman No clue, but that would be awesome, if it were possible.

quintopia

@Calvin'sHobbies only if you would want to take it.

El'endia Starman

@AlienG Well, I guess the problem is really that by the time humanity accumulates enough technology to answer that question, we'd also know where all of the butterflies were anyway...

Alien G

@El'endiaStarman That's probably going to be an average coding challenge by then anyway.

El'endia Starman

4:21 AM

Nah. That'd be one year later. :P

Alien G

Probably.

quintopia

@AlienG Sufficiently far into the future, butterflies will be extinct. If humanity is not, then the answer is obviously "yes".

El'endia Starman

Vacuously true.

quintopia

Yeah I'm just pointing out that the hard question embedded in that question is "In the future, will humanity be?"

Alien G

@quintopia Butterflies will be extinct? Who the hell would let butterflies die off?!??!? There would be at least 1,000 rich people who want butterflies as "exotic" pets.

Doorknob

4:27 AM

@Calvin'sHobbies here you go goo.gl/69dzDl

Alien G

@quintopia Yes, we will be dirt.

quintopia

@AlienG And probably keep them inside where they can't generate wind currents anyway.

Alien G

@quintopia AHA!, but the tanks will be vented! there will be an impact on the leaving air!

Holy crap, by then we could locate anything based on wind patterns.

quintopia

(As far as whether it will ever be possible to collect enough data about air movement in enough places at once to determine where all butterflies are, I'd gamble on "no")

El'endia Starman

@Doorknob 1/10..............

Doorknob

4:28 AM

>:D

@quartata will enjoy this

Alien G

Well... but I never specified a date!

Anonymous

@Doorknob 3/10

Doorknob

shhh this is totally fair

Alien G

-1/10

Calvin's Hobbies

@Doorknob 2/10. Go to heck

Alien G

4:30 AM

I didn't win, making it bad. :P

quintopia

@Doorknob 5/10. Despite never playing.

Alex A.

@Doorknob 1/10 -____________-

Calvin's Hobbies

The jaguar is f. That's all I learned

Doorknob

f for feline

Calvin's Hobbies

I chose j, know why?

Doorknob

4:32 AM

Know why I included that as an option? :D

j is "jelly"

Alex A.

@Calvin'sHobbies Because j is for jaguar?

Anonymous

goo.gl/I5pI8c <--- my quiz

Doorknob

(and guess what dogs / canines are? c? wrong! they're d. >:D)

Alex A.

@Mego ಠ_ಠ

Doorknob

@Mego 3/7 :/

Calvin's Hobbies

4:34 AM

@Mego 3/7 :/

Doorknob

hahahaha

ninja'd

Calvin's Hobbies

wth

Doorknob

rofl they're literally the exact same message

Alex A.

@Mego 2/7 :(

CSᵠ

1/7

ossm

El'endia Starman

4:35 AM

@Mego uh....1/7. :'(

CSᵠ

got the last one right, somehow

Nathan Merrill

@Mego 3/7 :/

Doorknob

@CSᵠ I wonder how

Anonymous

So I made a really tough quiz :P

CSᵠ

no idea :)

Doorknob

4:35 AM

Those were tricky.

Anonymous

Btw on the last question, one of them is not correct, and the order is randomized

Anonymous

Have fun!

Anonymous

Ok I lied I marked them all as correct

Anonymous

But I should have done that

El'endia Starman

Just got a message from Webfaction.

> Your total allowed memory is 512MB and your current memory usage is 1093MB.

....yyyeah.

I blame you, @Mego.

Chris Jester-Young

4:37 AM

@Mego Um, yeah. That was the only one I got correct.

Guess I don't know the site as well as some people do. ;-)

Anonymous

Wow I stumped the great CJY

Chris Jester-Young

Lol.

Nathan Merrill

@El'endiaStarman that sounded like a programming game, was disappointed when I looked it up

Anonymous

@ChrisJester-Young It helps when you're allowed to look stuff up while making the quiz :P

Anonymous

@El'endiaStarman Heroku

Anonymous

4:38 AM

Nobody yet has gotten Q6 right :o

Nathan Merrill

a long while ago, somebody posted a graph indicating activity on PPCG

anybody still have that?

or anybody know when the best time to post a question is?

Anonymous

@NathanMerrill Whenever you damn well feel like it

Calvin's Hobbies

@Mego We see them all turn green when one is selected

Nathan Merrill

Psh, I want lots of people to participate

:P

Anonymous

@NathanMerrill They will. A lot of people answer questions days after they're posted.

Anonymous

4:41 AM

Case in point:

Anonymous

0

A: String Zip and Sort

Perl 6, 33 bytes {[~] flat ([Z] @_».comb)».sort} Example usage: say {[~] flat ([Z] @_».comb)».sort}(< abc cba >) # acbbca my &code = my $code = {[~] flat ([Z] @_».comb)».sort} say code "HELLO","world","!!!!!"; # !Hw!Eo!Lr!Ll!Od say ((<cba abc>),(<testing gnitset gttseni>)).map($code); # ...

Anonymous

One week after the challenge was posted

Calvin's Hobbies

@NathanMerrill Any time not on the weekend is good. Questions a few hours old can still easily get on hnq

Nathan Merrill

I'm not looking for hnq

Calvin's Hobbies

@NathanMerrill was that @PhiNotPi? or @Doorknob?

Nathan Merrill

4:42 AM

looking for PPCG frequenters

Anonymous

@NathanMerrill We answer everything

Calvin's Hobbies

@NathanMerrill Then look at the 19th byte graphs: chat.stackexchange.com/rooms/info/240/the-nineteenth-byte

Anonymous

(everything that we can, that is)

Chris Jester-Young

@Doorknob R's feature set overlaps with Matlab enough that when I was doing a Matlab course (I majored in statistics), I asked the lecturer if I could do all the assignments in R. It was allowed.

Nathan Merrill

oooh, my title gave me the prompt that my question is likely subjective

Calvin's Hobbies

4:43 AM

bah

Chris Jester-Young

Reminded me of a CS course I did which used Common Lisp, but I asked if I could do the assignments in Emacs Lisp instead (because I was a masochist, in hindsight). That was allowed too.

Dennis

@Mego LOL at last question. The answer is wrong though.

Nathan Merrill

@Calvin'sHobbies perfect, thank you

Dennis

5/7

Chris Jester-Young

I had never since volunteered to do anything in Emacs Lisp.

Nathan Merrill

4:44 AM

@Dennis :O

Chris Jester-Young

@Dennis That's awesome.

Anonymous

Is it really that surprising that Dennis did better than everyone else at something?

Anonymous

@Dennis We (the ~~peasants~~ public) don't know who it belongs to, so until that information is learned, we assume Alex.

Calvin's Hobbies

@Dennis brings up two avatars...

Dennis

@Calvin'sHobbies Yeah, the other one is a sock.

Calvin's Hobbies

4:46 AM

Dennis, Netherlands

41 4

code-golf cops-and-robbers

Dennis

Uh huh.

Chris Jester-Young

@Mego It's not Alex, for the record.

(Thank goodness for mod tools that allow me to find this out with one click.)

Dennis

It's (censored).

quintopia

@Calvin'sHobbies Here's an esolang quiz for you: goo.gl/IbtFeB

Alex A.

@ChrisJester-Young :)

Hey I made one too: goo.gl/0xYcGE

Calvin's Hobbies

4:50 AM

@quintopia 3/10 :(

quintopia

@AlexA. 3/8

Alex A.

@quintopia 2/10

Calvin's Hobbies

@AlexA. 6/8 :)

Martin is a mod elsewhere?

Alex A.

Computer Graphics

Calvin's Hobbies

Ohhh yeah

Alex A.

4:52 AM

What was the other one you got wrong?

Chris Jester-Young

@AlexA. Your first question is wrong, BTW.

El'endia Starman

@quintopia 2/10 :(

Calvin's Hobbies

> Which former moderator had the shortest stint of moderation?

I chose dmkee

Anonymous

@quintopia 3/10

Alex A.

@ChrisJester-Young >_____> oops

What's the correct answer?

Chris Jester-Young

4:53 AM

I'll answer in the other room.

Calvin's Hobbies

@ChrisJester-Young hey now

Anonymous

@AlexA. 5/8

Calvin's Hobbies

It's not like its a trade secret

El'endia Starman

@AlexA. 5/7. Also, when I saw the last question, I checked back here to see who posted the quiz. :P

Alex A.

Crowded House - Don't Dream It's Over

►

Calvin's Hobbies

4:55 AM

@El'endiaStarman Alex emits the most love anyhow

Alex A.

The first question is wrong because I'm very, very bad at counting.

Fixed version: goo.gl/0xYcGE

Dennis

@AlexA. 7/8, but I think it should be 8/8. The first one seems wrong.

Alex A.

It is

Dennis

\o/

Alex A.

See messages directly preceding yours

Calvin's Hobbies

4:56 AM

5 current mods + dmckee and Chris, ahhh

Alex A.

ahhh

Calvin's Hobbies

Mods are indeed scary

Chris Jester-Young

@AlexA. Question 5 sounds like a trick question.

Alex A.

Is it?

Maybe

El'endia Starman

@AlexA. Yayyy 8/8! :P

Alex A.

5:01 AM

@El'endiaStarman After having already taken it once and gotten 5/7. :P

Wait, 7?

Chris Jester-Young

Hahahahahahaha.

Dennis

There's that counting problem again.

El'endia Starman

>_>

Alex A.

>____________>

El'endia Starman

Oh hey this room is full of blue! :P

Chris Jester-Young

5:02 AM

There's only one Blue Room, and you know it.

El'endia Starman

Well, actually, at least two.

Chris Jester-Young

Um. When you talk to a CM about the Blue Room, it is a reference to a very specific room.

El'endia Starman

Ahhh, I did not know that.

Chris Jester-Young

(Hint: it lives on chat.SO.)

El'endia Starman

So then, at least three mod-only chat rooms that are not for site-specific mods.

Chris Jester-Young

5:04 AM

?

El'endia Starman

lowercase-b blue rooms :P

Chris Jester-Young

Ah.

New Main Posts

1

Q: Emoji Vending Machine

Can't see emoji? Click here. You will simulate a vending machine. The items are 56 different emojis, which can be represented as two surrogate UTF-8 characters, from: 🍅(U+D83C U+DF45) to 🍼 (U+D83C U+DF7C). In HTML these emojis can be represented in UTF-16 form as &#x1F345 through &#x1F37C. In...

code-golf

Chris Jester-Young

@NewMainPosts I wish the OP had waited for more than 3 upvotes on their sandbox post.

Part of me wants to make the threshold 10. But then that would significantly reduce our daily question rate, which is not ideal either. Meh.

El'endia Starman

There's a threshold?

Also, many challenges have been posted with <= +3 Sandbox score and did just fine.

Chris Jester-Young

5:08 AM

I guess. :shrug:

Alex A.

@ChrisJester-Young feature-request Tab complete emojis like on GitHub. :P

Calvin's Hobbies

Match usernames to their avatar descriptions

Alex A.

> This game has been played times

haha

Calvin's Hobbies

The interface is kinda hideous

Woo, 114 seconds and I made it :P

New Main Posts

0

Q: You are the Weakest Link, Goodbye

This king-of-the-hill challenge is based off of the game show, Weakest Link. For those unfamiliar with the show, the crux of this challenge deals with who you vote off: If the other players are smarter than you, then you have less of a chance of getting the pot. If the other players are dumb...

king-of-the-hill

Calvin's Hobbies

5:15 AM

@quartata You said you knew the avatars: superteachertools.us/speedmatch/…

Chris Jester-Young

@AlexA. Lol, we don't have any emoji support except that you can paste in Unicode emoji.

Nathan Merrill

for some odd reason, my chat avatar hasn't updated

Calvin's Hobbies

🍭

Nathan Merrill

even though my codegolf avatar has

Alex A.

@Calvin'sHobbies 294 ;_;

Anonymous

5:16 AM

125

Alex A.

@ChrisJester-Young Right, that's why it's a feature request :P

Calvin's Hobbies

@NathanMerrill You need to change your SO avatar since that's the parent account (and maybe you need chat refresh)

Or change your chat parent account to ppcg

Nathan Merrill

@Calvin'sHobbies why is my SO the parent of my PPCG chat?

or is there only 1 account for all of chat?

Alex A.

Yes

Chris Jester-Young

@NathanMerrill The parent applies to all chat rooms for chat.SE.

quintopia

5:17 AM

@Calvin'sHobbies this thing has the worst interface ever. 4m21s

Alex A.

The majority of the time I spent was trying to figure out how to scroll down in that weird interface.

El'endia Starman

I couldn't even scroll down after the first one.

Alex A.

Same

Didn't stop me from trying though

El'endia Starman

Same. I failed.

Maltysen

holy shit:

8

A: Easy way of memorizing Sin Cos Tan values for the unit circle.

Note the pattern: $$\sin 0 = \frac{\sqrt{0}}{2}$$ $$\sin 30 = \frac{\sqrt{1}}{2}$$ $$\sin 45 = \frac{\sqrt{2}}{2}$$ $$\sin 60 = \frac{\sqrt{3}}{2}$$ $$\sin 90 = \frac{\sqrt{4}}{2}$$ This is something of a mathematical coincidence as far as I know, so don't try to extend this to other angles; an...

Nathan Merrill

5:19 AM

bah

Alex A.

I refreshed your profile for you

Maltysen

*mind blown*

Nathan Merrill

the little icon next to the chat box is different

Alex A.

I see your face now :O

Nathan Merrill

I can't stand it

Calvin's Hobbies

5:24 AM

55 :D

I killed chat :(

ninja'd

I should go do something real...

@NathanMerrill stopit!

Alex A.

@Calvin'sHobbies No

I have the 2 lowest scores.

@Zgarb Hi

Zgarb

5:34 AM

@AlexA. Hi, I'm just about to go to sleep, just checking emails and stuff one last time...

Alex A.

@Zgarb Okay. Goodnight! :P

El'endia Starman

@Zgarb You're mad to check this room "one last time" before bed.

Zgarb

:P

Night

Calvin's Hobbies

@El'endiaStarman This place is peaceful compared to dystroy.org/miaou/1216?PPCG_off-topic_chatter

Calvin's Hobbies

5:58 AM

That place is scary

Alex A.

In a good way

Well

Eh. Maybe just scary.

Calvin's Hobbies

6:10 AM

Like the spinnning beach ball of death

Optimizer

what is happening to me.. its taking ove...

Sherlock9

Is @Mego still in here?

Optimizer

@Calvin'sHobbies What are your commands master?

Nathan Merrill

@CSᵠ your code still has a bug, you need to assign it to an Object[] instead of int[]

Calvin's Hobbies

@Optimizer Give away all your scarves

CSᵠ

6:14 AM

@NathanMerrill ah

guess you fixed that in the test?

Nathan Merrill

yeah

CSᵠ

:) nice thnx

Optimizer

@Calvin'sHobbies I don't have any

CSᵠ

@NathanMerrill fixed! ?

Nathan Merrill

yep

CSᵠ

6:15 AM

anyway, i got 2nd place

I know it's not obvious but I don't write jabba

Nathan Merrill

if it ends up that nobody can beat the Max player, then that'll be super depressing

CSᵠ

4sure

Calvin's Hobbies

El'endia Starman

@Calvin'sHobbies /me stares...

That's.....so mesmerizing...

Calvin's Hobbies

Found at reddit.com/r/mesmerizinggifs/top/?sort=top&t=all

CSᵠ

6:19 AM

@NathanMerrill didn't you try some smart voting strategy? like.. to beat maxplayer's odds

Nathan Merrill

@CSᵠ Nope. Just going off of hope that Max isn't optimal

technically, you could target the max player and bring him down

but then, at that point, the optimal strategy would be to "go max"

Anonymous

@Sherlock9 What's up?

Calvin's Hobbies

El'endia Starman

Yeah, stared at that one too.

Anonymous

@Calvin'sHobbies yes tiger master what do you wish all glory to the hypnotiger

El'endia Starman

6:24 AM

I struggle to comprehend this one:

Like, I know what's happening. But my brain can't quite make sense of it. :P

Sherlock9

@Mego I don't think printing the numerator and denominator will be easy

@Mego You have to print Fraction.numerator and Fraction.denominator

@Mego That will cost several bytes

Anonymous

@Sherlock9 Yeah, I thought there was a simple/short way to format Fractions as n/d, but I was mistaken

Sherlock9

@Mego If there is another way to write up a fractions without using import fractions, I'm all ears

Anonymous

@Sherlock9 Not that I'm aware of

CSᵠ

@El'endiaStarman fish-eye fun youtube.com/watch?v=7Am3Mou2qI8

Sherlock9

6:32 AM

@Mego AH WAIT. After reading the docs, I see I can use str()

Optimizer

Anonymous

@Sherlock9 That didn't appear to work when I tried it earlier, but I may have done something dumb

Alex A.

3 hours ago, by Doorknob

By the way, more people need to join https://dystroy.org/miaou/1216?PPCG_off-topic_chatter. :P

Anonymous

@AlexA. why

Alex A.

I miss you

That's y

Sherlock9

6:40 AM

@Mego Will post momentarily

Anonymous

6:51 AM

@AlexA. aggressively downstars

Alex A.

@Mego >_>

Anonymous

Too many chatrooms for my tastes

Alex A.

There's also an IRC one and we have a couple other site rooms in SE chat

(IRC is unofficial, as is Miaou)

Sherlock9

@Mego codegolf.stackexchange.com/questions/65382/bernoulli-numbers/…

And now I have a statistics quiz to let kill me

See you guys later.

Anonymous

@Sherlock9 Looks good

Alex A.

6:56 AM

@Sherlock9 Stats is the best! :D I have an undergraduate stats minor and I'm in an applied stats master's program.

Chris Jester-Young

@AlexA. .oO(There is also an SO channel (also very very unofficial) on IRC somewhere, not that this has anything to do with PPCG. :-P)

Alex A.

Let me know if you need help. :)

@ChrisJester-Young I have a feeling they're more on-topic than PPCG :P

Chris Jester-Young

@AlexA. What do you mean by "more on-topic"?

Anonymous

What's a "topic"?

Chris Jester-Young

@AlexA. Programming questions and questions about SO are specifically off-topic for #stackoverflow. :-P

Alex A.

6:59 AM

@ChrisJester-Young Well, The Nineteenth Byte is entirely off-topic for PPCG, so I assumed that anything associated with SO would be closer to SO than TNB is to PPCG.

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