The Nineteenth Byte

AdmBorkBork

7:04 PM

Who in the world voted to reopen ^ ... it's still ridiculously underspecified.

Dennis

Probably the OP.

AdmBorkBork

I didn't realize you could vote to reopen your own post.

Erik the Outgolfer

and with less rep too

Dennis

Even before voting to reopen on others' posts iirc.

Erik the Outgolfer

ninja

Dennis

7:06 PM

codegolf.stackexchange.com/help/privileges/view-close-votes

> This privilege allows you to view and cast close and reopen votes on your own questions.

AdmBorkBork

Huh. TIL

New Sandboxed Posts

7:28 PM

0

A: Sandbox for Proposed Challenges

Gatherer Golf: The 61 Dwarves Gatherer is the official tool for searching for Magic: The Gathering cards. Its advanced mode allows searching by most of the criteria you could hope for, as well as simple boolean combinations within a single kind of criterion (for example, you can do "name contain...

betseg

i.redd.it/sb562vtf1gd01.png aww my password isnt secure enough

Erik the Outgolfer

what site is that?

(don't post the password, just the site :P)

AdmBorkBork

Obviously you need an uppercase downarrow

betseg

@EriktheOutgolfer not me, but isnt almost every site with password input like that?

Erik the Outgolfer

@betseg oh you don't know the URL?

betseg

7:38 PM

found on reddit :P

Riker

it's probbaly from r/softwaregore or smth

generally reddit bans linking like that, esp. on larger subs

leads to hugs of death and sometimes brigading

AdmBorkBork

Relevant image -- pbs.twimg.com/media/CjQZq_MXIAAcedt.jpg

betseg

@EriktheOutgolfer SE i.stack.imgur.com/5oicw.png

Christopher

opps my hands were not on home row

Hello!

betseg

@EriktheOutgolfer ^ from PPCG sign up page

Erik the Outgolfer

7:43 PM

eh, because it doesn't recognize emoji as safe chars

Dennis

I'll never get this. No matter how fancy your password strength estimator is, it'll never stop people from using stupid passwords and reusing them all over the web.

11

HyperNeutrino

some people don't care if their password is "very weak" :p

Christopher

Some people also don't care if they are very weak

Luis Mendo

@user202729 Since number 1 is never actually reached in the iterative process, you can replace the "is composite" test by "is not prime". I don't know Mathematica, but maybe the function name is shorter

Erik the Outgolfer

well, that's why we have password managers in first place...

but there's a problem where they don't go with you

Christopher

7:45 PM

Use chrome password saving?

Erik the Outgolfer

yuck yuck yuck

Magic Octopus Urn

You realize that's the first thing a keylogger steals right >_>?

Christopher

@Dennis i feel like you drop into TNB say something, get starred, and go AFK

Mr. Xcoder

@Christopher D'oh, don't!

Christopher

@MagicOctopusUrn If someone really wants my reddit and PPCG account they can have it

Magic Octopus Urn

7:46 PM

@Christopher fair enough. Lets hope you don't use those passwords, emails or usernames for anything else ;).

Dennis

@Christopher Just stick a post-it to your screen.

Luis Mendo

:-D

Christopher

@Dennis I have younger siblings, that would not go well :P

totallyhuman

not enough :P

Mr. Xcoder

That's much safer than Chrome anyway :)

totallyhuman

7:47 PM

how many passwords can you fit on a post-it

Erik the Outgolfer

@Dennis if I can safely do that I can comfofrtably use a password manager

Mr. Xcoder

Depends on how " Strong " they are

Christopher

Just use 3 random words and a number

khanacademy.org/computer-programming/…

totallyhuman

with my handwriting, probably like 5

Christopher

^^ look at that

Mr. Xcoder

7:49 PM

> else if else if else if else if else if...

Christopher

Don't judge

Mr. Xcoder

Lol that's a use-case for switch :P

Magic Octopus Urn

@Mr.Xcoder If only there was a better thing to switch to...

@Christopher Still, that's insanely cool, is that yours?

Christopher

@MagicOctopusUrn Yep!

Mr. Xcoder

> Created by: Shadow Runner Δpex

Christopher

7:50 PM

Hover over my name

Mr. Xcoder

So yeah.

Christopher

Apex was a coding group i was in

Mr. Xcoder

I knew that was you, no need to hover :)

Christopher

we were the top programmers on the website

Dennis

Did you sneak an RTL override in your username?

> Created by: Shadow Runner Δpex (oga setunim 4 detadpU) xepA rennuR wodahS)

Christopher

7:52 PM

@Dennis Yes :)

Riker

please don't star the RTL overrides :/

Dennis

If a simple emoji broke a banking website...

Christopher

I was seeing if it would break stuff (it didn't)

Dennis

@Riker Fixed.

Erik the Outgolfer

the absolute paradise RTL overrides is the Sandbox room :P

Christopher

7:55 PM

khanacademy.org/computer-programming/escape/6159329434402816 khanacademy.org/computer-programming/car-physics-thingy/… khanacademy.org/computer-programming/chaos-theory-fractals/…

My coolest programs I made :P

Riker

@Christopher that's a known bug >.>

Christopher

@Riker >.<

Riker

@totallyhuman how many passwords could a post-it store if a post-it could store passwords

Christopher

@Riker No recursion while the Geobits bots are here!

Riker

that's not recursion

Christopher

7:58 PM

Way to ruin the lame joke :|

AdmBorkBork

For a home user, a post-it with passwords is plenty secure. If someone breaks into your house, they already have physical access to your machine where they can compromise its security anyway.

Riker

that's len(stored_passwords) if stored_passwords else _UNK

Christopher

The fastest way into someones hardrive is with a drill

Blue

Passwords on postits at work?

Riker

@AdmBorkBork that's why you put an automated pepper sprayer mounted to the wall behind your computer

somebody breaks in? PEPPER SPRAY!

you're spending too much time on ppcg? PEPPER SPRAY!

Christopher

7:59 PM

Eyes hurt from pepper spray? PEPPER SPRAY!

Mr. Xcoder

;-; My CMC was broken

Riker

@Christopher i was typing that ;-;

lol

Christopher

@Riker i have a mech keyboard it is hard to avoid getting ninj'd by me

AdmBorkBork

@Blue Nope. Too many eyeballs.

Blue

Stabby stabby?

Christopher

8:01 PM

CMC: how many brainfuck programs can their be that are under 78 bytes and take no input

Riker

@Christopher I just paused to eat watermelon-flavored jelly beans that's why :p

@Christopher 23446881315

Poke

@Christopher Do they have to work?

Riker

wait no

Mr. Xcoder

@Christopher VTC as impossible to finish in reasonable time, even with a super-computer :P

Christopher

@Poke yes

Poke

8:03 PM

@Christopher Do they have to halt?

Christopher

@Poke yes

Mr. Xcoder

ಠ_ಠ You are asking us to solve the halting problem :P

Leaky Nun

inb4 "halting problem", this instance is not.

the inb4 is too late

Christopher

@Poke if they don't end in 60 seconds they are considered nonfinite

Esolanging Fruit

@Christopher Do you count ",[-.]" as taking input? If the input byte is null then it doesn't

Poke

8:04 PM

that feels like a pretty large-scoped cmc, ha

AdmBorkBork

Chat Mega Challenge

Riker

I'm just running sum(map(lambda x: len(list(itertools.combinations(x, 8))), range(79)))

my computer has gotten very loud

Mr. Xcoder

I hope you're not surprised :P

Riker

wait do you mean that running stupidly long computation takes much time and energy? wow

I'm actually curious how long it will take to finish

Mr. Xcoder

Just as long as building ELVM :p

Riker

8:08 PM

how long is that?

Dennis

If I had enough HDD space to finish the build, I'd know.

Erik the Outgolfer

@LeakyNun how it's specced, it really asks us "how many strings under 78 chars consisting of only +-<>,.[] with balanced [] exist?"

Mr. Xcoder

Ask Dennis... Ninja'd.

Riker

@Dennis wait, you ran out of space? lol

Leaky Nun

6 mins ago, by Poke

@Christopher Do they have to halt?

6 mins ago, by Christopher

@Poke yes

totallyhuman

8:10 PM

but do they halt

Mr. Xcoder

CMC: Golf this (Brainfuck)

totallyhuman

@Mr.Xcoder no

Leaky Nun

@Mr.Xcoder how 'bout no

Erik the Outgolfer

@Mr.Xcoder do your golfing yourself :D

totallyhuman

three kinds of people

Leaky Nun

8:11 PM

that's actually a good program

(converts to decimal and print)

Mr. Xcoder

:o wth it was just a CMC. I am not trying to solve any challenge lol

Riker

still lol no

totallyhuman

four kinds of people

Riker

nobody golfs brainfuck for CMCs you need the promise of reputation points

Mr. Xcoder

Just don't solve it if you don't want to :P

Riker

8:12 PM

@Mr.Xcoder day 19: still going

Dennis

@Riker Turns out that writing an ELVM-IR interpreter in a Turing Machine simulator requires way too many bytes.

Mr. Xcoder

@Riker I'll give you a bounty of -50 rep.

totallyhuman

@Mr.Xcoder well, first of all the newlines are unnecessary

Mr. Xcoder

They were added for readability

Riker

@Dennis O_o y tho

totallyhuman

8:13 PM

@Mr.Xcoder readability is unnecessary in code golf

Riker

today in frustrating things: I accidentally set my editor to softwrap lines that go above 10 characters

so it breaks each line on every single space

Mr. Xcoder

@totallyhuman Oh wow! TIL

totallyhuman

:P

Mr. Xcoder

> relative complement is a contravariant functor

Dennis

@Mr.Xcoder I'm not even sure what this is.

totallyhuman

8:15 PM

3 mins ago, by Leaky Nun

(converts to decimal and print)

Mr. Xcoder

@Mr.Xcoder Wow Leaky I understand ~ 3 words from that.

@Dennis Outputs the value of the current cell.

If the cell has the value 5, it should print 5.

betseg

.?

Mr. Xcoder

Nope... That pushes ASCII equivalents

totallyhuman

@betseg that will print \5

an enquiry byte o0

betseg

oh ok, in decimal

totallyhuman

8:17 PM

CMC: how many control characters do you know the purpose of

AdmBorkBork

Esk, catarl, and pigup

Leaky Nun

newline... return... end of file...

@Mr.Xcoder :P

betseg

there is ^G

AdmBorkBork

Oh, and my favorite ^B

Mr. Xcoder

@LeakyNun I just know that it's probably related to category theory, since you seem to like that lately (?)

(Not that I know what category theory is)

betseg

8:19 PM

@Mr.Xcoder is it cheating if i copied this from somewhere on the internet

Mr. Xcoder

Nice

totallyhuman

there's 32 control characters in ascii

each of which had an (ancient) use

AdmBorkBork

^B is start of text ... I don't know its usage, but I know what it stands for

betseg

^G rings a bell

AdmBorkBork

Everytime you ^G an angel gets its wings.

totallyhuman

8:25 PM

tio.run/##bZDLboQwDEV/…

Mr. Xcoder

Tfw you have to find out how many natural numbers satisfy a condition using code, you find a lower bound, but instead of range(2, bound + 1) you use range(2, bound), and you submit result - 1 instead of result and fail...

betseg

i like record seperator but i dont know what it does

^^

totallyhuman

it separates records

\s

AdmBorkBork

No, ^S is device control three

Neil

or on lame terminals, flow control

totallyhuman

8:37 PM

tio.run/…

ohhh that's why ^W is usually close something

Dennis

@totallyhuman Original or current?

Current: NUL, EOT, BEL, BS, TAB, LF, VT, FF, CR, ESC

totallyhuman

original 'cause most aren't used anymore

Riker

why is python's string.translate so weird

smh

why is delete chars just lumped in there

instead of a mapping

totallyhuman

because

Poke

8:52 PM

@Mr.Xcoder unlucky

New Meta Posts

0

Q: How does following PPCG on Twitter help the community grow?

Grace Note posted a community ad which seems to claim that following PPCG on Twiller will help the community grow: How does that work?

totallyhuman

it doesn't

well, *it's not

Poke

@Pavel should we have closed codegolf.meta.stackexchange.com/questions/14614/… by now?

Christopher

@EsolangingFruit counts as taking input

, is a input char

@Dennis not even RTL/override?

Poke

chrome lets you change your writing direction

fun fact

Christopher

9:05 PM

looc

@Poke no answer to my CMC?

:P

Riker

@Poke cc @Dennis: lock it?

Christopher

almost half way to my network goal of 10k!

Poke

@Christopher :] not today

Christopher

@Poke :P

Riker

@flawr en.reddit.com/r/AskReddit/comments/7t1dff/…

flawr

9:18 PM

@Riker -1 no lizard or snake as option =(

btw did you see the beekeeper question? :D

betseg

i did

also spacex launching a luxembourgian government satellite called GovSat-1

Zacharý

Does anyone know when Array/List/ArrayList was introduced in Java?

@Poke I've run into that a couple of times by accident, somewhat annoying. (At least I think Chrome caused it)

Poke

@Zacharý 1.2 probably?

you should be able to look at the docs

Zacharý

I'm running into errors for JDK1_1.5, where would I find them in the docs?

Poke

What error are you seeing

Zacharý

9:31 PM

Identifier expected

Poke

The javadocs for stuff like that usually have a "Since:"

you forget a main method or something?

New Sandboxed Posts

0

A: Sandbox for Proposed Challenges

Flattened Spiral Permutation Index Context Consider square matrices with n columns and rows containing the first n^2 (i.e. n squared) positive integers, where n is odd. The elements of the matrices are arranged such that the integers 1 through n^2 are placed sequentially in a counterclockwise s...

Zacharý

No, and I'm trying to write code for an old version of Java that a school drive contains. It's old as heck, I think 1.1.5, and ArrayList is 1.2

Mostly because I forgot to copy MinGW or DMD onto my school computer from a flash drive.

Poke

yeah ArrayList and stuff are part of java Collections all of which was released in 1.2 iirc

is the code smallish

could you tio it or something (probably wouldn't run but w/e)

Zacharý

Programming for perfect backwards compatibility with all versions of a language is difficult.

Poke

9:39 PM

explains why the java servlet api v2.5 uses enumerations while 3.0 uses collections

/sigh

Zacharý

I don't have access to the internet on my computer right now. I definitely would use D or C++ if I had access to the internet

Christopher

you don't have internet yet you are on TNB?

SnivyDroid

Hello

Is anyone here

._.

Zacharý

Phone

Christopher

yes but please don't post stuff like "anyonë herë"

SnivyDroid

9:43 PM

Oh

Im sorry

flawr

@Christopher A trick your internet provider doesn't want you to know: I downloaded the internet so I can use it offline.

SnivyDroid

lol

Zacharý

Why the diacritics?

Christopher

@flawr sudo apt-get download internet

flawr

Maybe he was infected by APL

Christopher

9:44 PM

@Zacharý tacoscript

Zacharý

@flawr you don't get infected, you become enhanced.

@Christopher but why did you put them there

Christopher

Captain America does APL not drugs!

@Zacharý again, i didn't taco

Zacharý

An apl a day...

flawr

@Zacharý unless you know Haskell :D

Christopher

An J a day keeps happiness away!

Zacharý

9:46 PM

APL is functional as well, or at least it can be... Somewhat

@Christopher that's J... From what I've seen

flawr

@Zacharý while other languages are completely dysfunctional

Christopher

@Zacharý now is it star worthy? L:

Zacharý

An APL a day causes Adám to stay

12

Riker

@flawr yep

Zacharý

No, but that is.

Luis Mendo

9:48 PM

@user202729 My reasoning fails for input 1

Riker

the feels

@flawr I really should learn haskell sooner or later

New Main Posts

0

Q: Foo Bar Foobar loop

i hope this codegolf doesn't already exist somewhere - at least i couldn't find one. The challenge Make a loop that iterates exactly 100 times. If the current counting variable can be divided by 2 AND 3 output (modulo, so without remainder) "Foobar", if it can be divided by 2 output "Foo" and i...

code-golf

flawr

@Riker is "white mirror" a reference to something?

@Riker you do:)

Zacharý

I've tried the backwards compatibility hell with Python... a single equals used to be overloaded as both equality test and assignment, there used to not be double equals.

@Riker now if only APL could have hyperoperators and beyond

totallyhuman

@NewMainPosts I used my hammah for good :)

SnivyDroid

9:52 PM

So I made up my own esoteric language

Zacharý

What's the name of it

DJMcMayhem

25

Q: Tell me how to flop

As computer scientists, you're probably all familiar with the basic list operations of pop and push. These are simple operations that modify a list of elements. However, have you ever heard of the operation flop? (as in flip-flop)? It's pretty simple. Given a number n, reverse the first n element...