The Nineteenth Byte

noɥʇʎPʎzɐɹC

20:01

@TuxCopter also can you help me debug this code?

40 mins ago, by noɥʇʎPʎzɐɹC

unordered_map<int, pair<int, int>> seen_times;
seen_times[cur_cost] = make_pair(get<1>(cow), get<3>(cow));  // this runs, the debugger even steps into make_pair
// and yet my debugger still shows seen_times as having size 0

1. I set the value
2. The size is still 0
3. ????

TuxCopter

idk how to C++

noɥʇʎPʎzɐɹC

C++ is horrible. I need it less horrible.

mınxomaτ

Stick to good old C.

TuxCopter

^

noɥʇʎPʎzɐɹC

My situation is that I need to do stuff for a competition with a four-hour time limit and the contest is scored by program speed

I cannot do that in C

mınxomaτ

20:07

Use Rust.

TuxCopter

@noɥʇʎPʎzɐɹC Wat?

noɥʇʎPʎzɐɹC

@mınxomaτ They don't support it.

Or nim.

mınxomaτ

Wut competetion

TuxCopter

A very weird one visibly

noɥʇʎPʎzɐɹC

@mınxomaτ Official USACO - united states computing olympiad

Petition them! Do it for me!

quartata

20:08

@TuxCopter Not really; most competitions only do C C++ and Java

Since that's usually the mix of what you see at schools.

TuxCopter

wut

quartata

Occasionally Python

mınxomaτ

Use C to compile Rust and then use it.

BlueEyedBeast

@quartata British Informatics Olympiad supports every language as long as you send the marker an interpreter/compiler for it

DJMcMayhem

Woo-hoo! I capped again for the first time in a while!

Kritixi Lithos

20:09

@noɥʇʎPʎzɐɹC What's the objective?

mınxomaτ

@quartata If they support java, they usually support Python, too.

quartata

@BlueEyedBeast That's unusual.

noɥʇʎPʎzɐɹC

@KritixiLithos Solve the problem as fast as possible. (within two secs)

@mınxomaτ Huh?

Nim transpiles to C but it requires linked libs they don't have

I can't used boost

quartata

@mınxomaτ I'm starting to see Python more, true

BlueEyedBeast

@BlueEyedBeast as far as I'm aware - they let me do one question in Pyth

quartata

20:10

Used to be a lot less common

@BlueEyedBeast ahahaha

Kade

There was a challenge where Pyth was fast enough to calculate the answer? :P

BlueEyedBeast

@quartata It was a nice and simple 1 byte builtin as well

Kade

Ah, fair enough

noɥʇʎPʎzɐɹC

You support Python which never wins.... and yet they never support Rust or Nim!?

usaco.org/index.php?page=instructions

quartata

yesterday, by quartata

Does anyone know where I can get the full xkcd Hoverboard comic as an SVG?

Still haven't been able to find one

noɥʇʎPʎzɐɹC

20:12

@quartata Do you want a DDoS?

TuxCopter

The xkcd Hoverboard comic?

PhiNotPi

Does anyone else have a yucata.de account?

TuxCopter

@PhiNotPi watiz

noɥʇʎPʎzɐɹC

^

That's it; I'm making my own darn language that transpiles to C++

TuxCopter

Good luck

PhiNotPi

20:15

It's a website for "online board games."

quartata

@noɥʇʎPʎzɐɹC ???

Is this a threat or what? :P

noɥʇʎPʎzɐɹC

@quartata the svg would be huge

@quartata Only $1.99 to buy a DDoS!

TuxCopter

@noɥʇʎPʎzɐɹC wat

quartata

@noɥʇʎPʎzɐɹC Wouldn't be all that big.

H Walters

@quartata Depends on how you build it

quartata

20:17

Yeah, I don't need it to scale.

I can do that myself obviously

A lot of it is straight lines so with just a regular path it probably wouldn't have a lot of points

ETHproductions

I just spent five hours over 2 months trying to figure out how to use Bootstrap to do something which can be done in 3 lines of CSS 0_0

TuxCopter

rip

redstarcoder

Hey I was wondering what your guys opinion is for leaving the output on the stack for stack-based languages. I saw this answer by Martin Ender meta.codegolf.stackexchange.com/a/8507/62670, but this feels like cheating in ><> (especially because characters are displayed as decimal instead of unicode on the stack, for the online interpreter at least). What are your guy's thoughts?

TuxCopter

It's only for functions

A 'full program' must output the value on STDOUT or it closest equivalent

ETHproductions

I think the general consensus is that functions can leave the output on the stack, but if it's a program, it needs to send the output to some form of STDOUT.

mınxomaτ

20:26

I like how HN mods silently edit the title of your post sometimes.

redstarcoder

Okay, thanks. I guess ><> would be considered "functionless" then? Because to me, a function is just storing where I am on the stack, jumping to the desired function, then ultimately jumping back to where I was.

TuxCopter

><> has a goto command?

redstarcoder

Yeah "."

esolangs.org/wiki/Fish

noɥʇʎPʎzɐɹC

github.com/nim-lang/Nim/issues/5056

redstarcoder

Like that would be a function in asm, no? So I just find it a bit confusing I guess. Should I ask a question on meta?

noɥʇʎPʎzɐɹC

20:32

IBM will give you 5k if you implement a thing: bountysource.com/issues/…

TuxCopter

github.com/andrakis/node-lithp lel

redstarcoder

@noɥʇʎPʎzɐɹC that page is just white for me O:

noɥʇʎPʎzɐɹC

GitHub said "yo I'll give 1k to y'all if you fix this" to Firefox

bountysource.com/teams/github

mınxomaτ

20:49

Linode issue resolved. 3 hours later. All backups gone.

noɥʇʎPʎzɐɹC

@mınxomaτ so you lost everything? [dumb question]

mınxomaτ

All backups-

GitHub hasn't fixed the issue that allows automatic account creation. Many bogus accounts + Travis + AppVeyor = free computing power.

noɥʇʎPʎzɐɹC

@mınxomaτ What have you been up to??

mınxomaτ

Building a botnet for free with GitHub and CI services.

noɥʇʎPʎzɐɹC

@mınxomaτ and who's the victim?

mınxomaτ

20:55

No one, I'm just documenting this for a blog post. And crunching some numbers that needed crunching.

noɥʇʎPʎzɐɹC

What's the botnet's infrastructure?

mınxomaτ

My PoC currently takes about 30s to spawn 5 VMs (that's registering, verifying, setting up a GitHub account and attaching 5 Travis tasks).

noɥʇʎPʎzɐɹC

Do you have a botnet that constantly migrates from exploit to exploit as a standing army/threat insurance? :P

@mınxomaτ How do they report back?

mınxomaτ

@noɥʇʎPʎzɐɹC A master account contains the mapreduce code. New bot accounts just fork it.

Lynn

@DJMcMayhem Huh, what’s the trick?

(To 8 bytes on reverse the input.)

mınxomaτ

20:59

If the task finished, the bots make a pull request on the master

TuxCopter

I don't see how GH can prevent this kind of abuse

noɥʇʎPʎzɐɹC

@mınxomaτ Supposedly the botnet will stay even after the bug is fixed...

@TuxCopter a CAPTCHA

TuxCopter

@noɥʇʎPʎzɐɹC inb4 machine learning

noɥʇʎPʎzɐɹC

though you can use services that will read CAPTCHAs for you

@mınxomaτ Hm, the code must be public

mınxomaτ

@noɥʇʎPʎzɐɹC I'll send the list of bots to GitHub in my report.

@noɥʇʎPʎzɐɹC That's ... the thing. You see, if GitHub's algorithm detects that you are a bot, all your repos become unlisted. But everything still works. That's actually helping.

noɥʇʎPʎzɐɹC

21:04

Pattern of bot names?

I see you're doing this independently of the bugs discovered by the automated tools

mınxomaτ

I have an algorithm that creates a human-like profile. Complete with Bio, name, company etc.

noɥʇʎPʎzɐɹC

@mınxomaτ Like Social Engineering, but to trick bots

mınxomaτ

Bot Engineering

@TuxCopter But yeah, unless GH implements some kind of challenge, creating bots will always be faster than detecting and removing them

DJMcMayhem

@Lynn the filter command. !Grev<CR>ZZ

Pretty much the same idea

noɥʇʎPʎzɐɹC

Classical CAPTCHAs can be solved automatically

mınxomaτ

21:08

@noɥʇʎPʎzɐɹC Even reCaptchas. Just opt for the "audio" version for disabled people and pipe that into the Google Speech API. Success rate is acceptable.

New Meta Posts

1

Q: How do We Define "Function"?

I got the idea for this question after reading an answer by Martin Ender here. It more-or-less says: Functions in stack-based languages can leave the output on the stack. This had me ask "what is a function?". I use ><> and to me, a function is just when I store my current location on the stack,...

noɥʇʎPʎzɐɹC

@mınxomaτ Have you used Tor and gone to a CloudFlare protected site? The text is unreadable and the sound is alien

mınxomaτ

@noɥʇʎPʎzɐɹC Uh, SE is on CloudFlare. Works fine for me :-)

noɥʇʎPʎzɐɹC

@mınxomaτ Go to one that's more sensitive to threats ; like strawpoll.com

Tested

mınxomaτ

@noɥʇʎPʎzɐɹC I'd call this misconfigured, not more sensitive.

noɥʇʎPʎzɐɹC

21:11

@mınxomaτ Lots of sites get super mangled captchas, not just that one

@mınxomaτ What's this? github.com/turbo/Alkaline

ETHproductions

TIL you can have multiple box-shadows on one element

mınxomaτ

@noɥʇʎPʎzɐɹC A sort of last resort against IoT botnets which I've not yet published.

TuxCopter

@ETHproductions It actually make sense

Nathan Merrill

@ETHproductions this is super useful when you want to shadow all sides

noɥʇʎPʎzɐɹC

@mınxomaτ What does the code do to make it a last resort?

TuxCopter

21:18

I guess

mınxomaτ

@noɥʇʎPʎzɐɹC Brick affected devices.

noɥʇʎPʎzɐɹC

@TuxCopter without jQuery

@mınxomaτ where does this run? It still can't prevent Layer 2 attacks, if it's not on a firewall

ETHproductions

@NathanMerrill Well, box-shadow is by default on all sides, so it's more useful when you only want the top and bottom to have shadows, since you can really only wrap four or one sides with a single shadow

mınxomaτ

Well, actually either brick or make them attack each other.

El'endia Starman

@TuxCopter Surprisingly accurate guess. :P

TuxCopter

21:20

:)

noɥʇʎPʎzɐɹC

@mınxomaτ Where does this run?

mınxomaτ

@noɥʇʎPʎzɐɹC It's P2P. It runs on the devices.

Nathan Merrill

@ETHproductions right, but if you use offsets, then that messes everything up

mınxomaτ

So once run, you can't stop it.

noɥʇʎPʎzɐɹC

I see....

Why can't the malware just delete Alkaline? (it can't, but why?)

ETHproductions

21:21

@NathanMerrill Ah, yes, I see your point now

mınxomaτ

It also incorporates the H-Bomb code from one CloudFlare engineer that makes OpenDNS resolvers attack each other.

@noɥʇʎPʎzɐɹC That's a race condition basically.

noɥʇʎPʎzɐɹC

git init antialkaline

TuxCopter

git init antiantialkaline

ETHproductions

git init meta-alkaline

El'endia Starman

Let's not have a race condition in chat, eh? :P

TuxCopter

21:23

Bwhu?ty

noɥʇʎPʎzɐɹC

git init (anti)*alkaline

mınxomaτ

We shouldn't use race-conditions. That often leads to threads.

4

noɥʇʎPʎzɐɹC

Yogiisim for ppcg :P

ETHproductions

TIL what race condition means

noɥʇʎPʎzɐɹC

Just attach remote mines to every IoT device ever

mınxomaτ

21:25

IoT devices are remote mines.

2

El'endia Starman

Remote mines would be so useful in Age of Empires...

... note to self: previous remark not witty enough for stars.

4

TuxCopter

I am sure ^ is an evil plan to get stars

El'endia Starman

7_7

noɥʇʎPʎzɐɹC

^ best emoji ever

ETHproductions

Someday I'll learn how to get stars like I get upvotes. Problem is, stars can't be earned by golfing...

El'endia Starman

21:33

Awww, I'm flattered.

H Walters

^ is, what, a cheshire cat frown?

PhiNotPi

∠_∠

mınxomaτ

@ETHproductions Sr th cn.

TuxCopter

Question: How to reload a file in vim?

H Walters

:e! if that's what you mean

El'endia Starman

21:35

@HWalters In TNB, carets ate typically used to agree with or refer to the previous message. A double caret refers to the second message before, and so on.

TuxCopter

;-;

El'endia Starman

Try not to use them frivolously though.

H Walters

@El'endiaStarman Sometimes being overly literal is a form of humor

Dennis

^^

noɥʇʎPʎzɐɹC

@El'endiaStarman wat I thought multiple carets was super agreement

trichoplax

21:37

They can also mean that, and also be a face, so they're really ambiguous

TuxCopter

Oh neat vim automatically reload files

El'endia Starman

@noɥʇʎPʎzɐɹC Nah, bold them for that.

TuxCopter

@trichoplax ^_^ problem solved

Flp.Tkc

If you get to something like ^^^^^^^^^^ that's probably super agreement, but ^, ^^ and ^^^ refers to agreement with x messages above

trichoplax

The chat reply links are a great way to avoid ambiguity

Flp.Tkc

21:37

^

ETHproductions

^‿^

Doorknob

@El'endiaStarman Or superscript. ^², read "caret squared."

El'endia Starman

@trichoplax Yes, definitely.

Dennis

Calvin's Hobbies

@Doorknob That's the same as "^^" though, no?

Doorknob

21:39

@Calvin'sHobbies Hmm, I would interpret two carets as referring to two messages up instead.

noɥʇʎPʎzɐɹC

leftoversalad.com/c/015_programmingpeople

TuxCopter

@ETHproductions ಠ̯ಠ

Doorknob

In any case, the ambiguity is all the more reason not to use them and just describe things in words instead. :P

Calvin's Hobbies

@Doorknob But like x^3 = xxx. Or yeah we can just say "I super agree" :P

Flp.Tkc

> how do you do that fancy thing where you send a blockquote message

> oh like that nvm

El'endia Starman

21:40

Ugh, I just now noticed that one of my previous messages has "ate" instead of "are". So annoying how my mobile keyboard likes to pick the former when I'm trying to type the latter.

TuxCopter

> carets ate typically

trichoplax

That's the trouble with typing when you're hungry

El'endia Starman

@trichoplax I just are, though!

H Walters

Described with words, like, this? "imagine two dots. Underneath the two dots is a straight line, with the righthand side forming a chord in a semi-ellipse, broken at symmetry along the shorter axis. Now rotate this image 90 degrees counterclockwise into standard smiley format"

El'endia Starman

(That was intentional. :P)

trichoplax

21:42

:P

ETHproductions

When I'm typing on mobile, the keyboard autocorrects me wrongly. When I'm typing on a computer, my hands do that instead. :P

Calvin's Hobbies

@all Which do you feel you are better at managing, time or space? Like, if you plan your week's schedule are you more likely to stick to it, or if you clean your room is it more likely to not get cluttered again?

I'm great with space, terrible with time :/

ETHproductions

Space for me. I shouldn't be chatting right now :P

TuxCopter

I'm bad at both

H Walters

I'm not sure... I'm actually delaying cleaning up atm

trichoplax

21:44

@Calvin'sHobbies I don't know which is worse, but I'm terrible with both

PhiNotPi

@Calvin'sHobbies I'm great at managing my energy (AKA being lazy), which is somewhat related due to the whole relativity thing.

trichoplax

If I had all of time and space at my disposal, I'd probably waste all of both

El'endia Starman

I'm...not sure, actually. My spaces do gradually get more cluttered over time, but also, my schedules don't get cluttered that badly due to my introversion.

Calvin's Hobbies

@ETHproductions But that would be bad time management, no? Like procrastination.

ETHproductions

Exactly. I'm better at managing space

El'endia Starman

21:46

I'm certainly better at space management than time management.

ETHproductions

> Which do you feel you are better at managing, time or space?

noɥʇʎPʎzɐɹC

@ETHproductions right click > The Great Suspender > Suspend Tab

El'endia Starman

As in, I tend to use my space more effectively and efficiently.

Calvin's Hobbies

@ETHproductions I can't read or remember

Flp.Tkc

@Calvin'sHobbies I'm the same as you : I can manage space well, but I hardly ever have my time planned

Dennis

21:49

@Calvin'sHobbies c) None of the above.

noɥʇʎPʎzɐɹC

Any C++ macro recommendations?

quartata

?

Dennis

Don't use them.

noɥʇʎPʎzɐɹC

@quartata reccomend c++ macros

#define contains(x,y) (x.find(y) == x.end()) //works for maps
#define index(y,x) get<x>(y)  //tuples

@Dennis Context: programming competition with time limit

TuxCopter

Strawpoll for Calvin's poll

ETHproductions

21:51

-1 not enough rickroll

Calvin's Hobbies

@TuxCopter A waste of time and space

Doorknob

@noɥʇʎPʎzɐɹC I highly doubt typing speed would be a bottleneck.

noɥʇʎPʎzɐɹC

@Doorknob Things to help reading code easier; like the macros I posted

DJMcMayhem

@noɥʇʎPʎzɐɹC avoid them at all costs

TuxCopter

@noɥʇʎPʎzɐɹC chaospp

noɥʇʎPʎzɐɹC

21:53

@DJMcMayhem What about the contains and index functions?

DJMcMayhem

@Calvin'sHobbies I'm terrible at both. :P

Probably slightly better at time

@noɥʇʎPʎzɐɹC If I was working with code that had those, the very first thing I do would be to remove them

Flp.Tkc

why does this question exist

noɥʇʎPʎzɐɹC

@DJMcMayhem It's not production code. It's for a competition. Once it's written, it's thrown away

H Walters

@noɥʇʎPʎzɐɹC contains as you defined it is not useful

TuxCopter

@Flp.Tkc Because FAQ Q/A

H Walters

21:55

Just do x.count(y)

noɥʇʎPʎzɐɹC

@HWalters renamed to mcontains

Only works on maps

H Walters

x.count(y) is less characters even; no need to compare your iterator to end just to see if the map x contains something

DJMcMayhem

@noɥʇʎPʎzɐɹC What difference does that make?

noɥʇʎPʎzɐɹC

@HWalters ok I'll use that; is it fast?

H Walters

It's roughly as fast as your map; wasteful if you need the iterator, but I thought you were optimizing for coding speed

The macro's equally wasteful in this regard

noɥʇʎPʎzɐɹC

22:00

@HWalters ok

Nathan Merrill

the two real things you need with a coding competition is 1. A smart brain and 2. familiarity with the language

noɥʇʎPʎzɐɹC

@NathanMerrill I don't have 2.

TuxCopter

Then why are you doing the competition???

Nathan Merrill

does it have to be in C++?

noɥʇʎPʎzɐɹC

@NathanMerrill C++ or C.

Has to be.

TuxCopter

22:01

C++/Python/Java/Pascal IIRC

Calvin's Hobbies

@TuxCopter Fun?

Nathan Merrill

can you compile?

find a Python to C compiler :P

TuxCopter

^ Bad Idea™

Flp.Tkc

I'm sorry to be a bit late to the whole thing, but what's going on with this site's graduation from beta?

noɥʇʎPʎzɐɹC

@NathanMerrill They require Statically Linked Libs™

And so does Nim

I opened an issue on GH

Calvin's Hobbies

22:02

@Flp.Tkc We are graduated and waiting for a design

TuxCopter

@Flp.Tkc It should graduate in 6-8 weeks (Read: Never)

Calvin's Hobbies

@Flp.Tkc Any dates you read about graduation are probably jokes

noɥʇʎPʎzɐɹC

@NathanMerrill nope; provide source; this plays

Nathan Merrill

@noɥʇʎPʎzɐɹC who is They?

noɥʇʎPʎzɐɹC

@NathanMerrill Python to C compilers

Nathan Merrill

22:03

all of them?

noɥʇʎPʎzɐɹC

Please, really do petition them - usaco.org

@NathanMerrill Yep; tested

Nathan Merrill

Cython?

noɥʇʎPʎzɐɹC

They don't even support PyPy!

@NathanMerrill Nope

Well I've tried

Cannot get intermediate C source

I'm considering making my own lang

TuxCopter

Haskell can compile to C IIRC

Nathan Merrill

@noɥʇʎPʎzɐɹC that sounds like an even worse idea. if you aren't familiar with C then writing a compiler into it sounds like a host of bugs for you to find on competition day

noɥʇʎPʎzɐɹC

22:05

@NathanMerrill I'm going to practice with it

Nathan Merrill

then just use C :P

noɥʇʎPʎzɐɹC

I'm practicing vanilla C++ right now

@NathanMerrill Basically it generates incomplete C++ code

quartata

Why don't you just use Java?

TuxCopter

Why a sane person would use Java?

quartata

Also Cython like basically all such tools requires libpython

flawr

22:07

Why don't you just use Javascript?

@TuxCopter Well it would be the saner alternative compared to C++.

TuxCopter

Right, but if speed is the goal of the competition Java is a Very Bad Idea™

quartata

@TuxCopter Because it's better than C++ if you don't know anything about either and he better get used to it now before being confronted with the same restrictions in college

They wouldn't have offered Java if it wasn't fast enough

noɥʇʎPʎzɐɹC

Google Magenta Music

►

^ ANN music, autogened; sounds great

Doorknob

@TuxCopter Why? If whatever competition he's doing is like any competition I've ever seen, the language speed has almost no impact at all compared to the speed of the algorithm.

TuxCopter

Java has a slower runtime time compared to other languages

noɥʇʎPʎzɐɹC

22:11

@Doorknob Yes it does.

flawr

@TuxCopter To what languages?

quartata

Yeah language speeds do not usually contribute orders of magnitude differences which is what they care about

TuxCopter

C/C++/Rust/etc...

Doorknob

@TuxCopter Did you read my message?

noɥʇʎPʎzɐɹC

@quartata The biggest testcase is sometimes unsolvable even with a fast language and the fastest algorithm

quartata

22:12

They design these problems so that if it takes longer than the time period it's because you're doing it wrong not because of the language

Java is also faster than you think these days

flawr

@TuxCopter I doubt rust is really faster than Java.

TuxCopter

Rust is compiled to machine code, Java runs on a VM

flawr

So what?

Brainfuck is compiled too.

noɥʇʎPʎzɐɹC

@quartata In an ideal world (evidence coming up)

> Note also that due to the slower speed of a Python program, it may not be possible to solve the largest test cases for some problems even with the inflated time limit given to Python submissions -- consider using a faster language for problems where execution time is critical.

direct from their website

quartata

Rust is also in beta and its compiler has not had 20+ years of work like gcc.

@noɥʇʎPʎzɐɹC Yeah that's Python. CPython is molasses

noɥʇʎPʎzɐɹC

22:15

@quartata They don't support PyPy.

usaco.org/index.php?page=instructions

quartata

But we aren't talking about Python

We're talking about three compiled languages

noɥʇʎPʎzɐɹC

@quartata I'm talking about:

> They design these problems so that if it takes longer than the time period it's because you're doing it wrong not because of the language

contest hosters said against so explicitly

flawr

@noɥʇʎPʎzɐɹC ♫ PyPy Miss American Py ♫

trichoplax

So it sounds like this particular contest is an exception

noɥʇʎPʎzɐɹC

@trichoplax It's the official US one

@flawr ??

quartata

22:17

No they didn't. The problems are likely not designed for Python. I'm also pretty sure you said Python was not allowed anyeays

Doorknob

@flawr wrote my python with the keyboard but the runtime was slow

noɥʇʎPʎzɐɹC

@quartata It is allowed.

H Walters

Interesting inclusion of Pascal there

noɥʇʎPʎzɐɹC

c/c++/pascal/python/java <- that's it

flawr

Don McLean ~ American Pie

►

TuxCopter

22:20

@noɥʇʎPʎzɐɹC What version of Pascal btw?

noɥʇʎPʎzɐɹC

@TuxCopter usaco.org/index.php?page=instructions

1.7.0_65 Java executables can't even be found!

Calvin's Hobbies

> And Guido van was getting risky with tries

idk

If we're gonna sing about paɪ it should be pi

TuxCopter

CMC: Find a Wikipedia page where the Talk page is not yet created

H Walters

@TuxCopter like this one en.wikipedia.org/wiki/Special:Contributions/… ?

Destructible Watermelon

@TuxCopter done

Side Stage

Side Stage is a technology presented by Canonical Ltd. to be included in Ubuntu Tablet. It was first demonstrated on Ubuntu Tablet's YouTube announcement on Canonical's channel "celebrateubuntu". == Summary == Side Stage allows Ubuntu Phone apps and select Ubuntu Tablet apps to run in a smaller section of the screen, alongside the main app. It aims to "go even further" with the idea of multitasking, allowing screen space to be divided in this manner. Examples shown in the announcement video included a notes app being used alongside a web browser, and a user swiping from the right edge to bring...

New Main Posts

22:31

1

Q: Stewie's sequence: + * - / + * - /

Let's use the four basic operations, addition +, multiplication *, subtraction - and division / (float, not integer). We'll number these operators from 1-4 in the order given above. Stewie's sequence is defined as follows: x = [x(1), x(2)] // Two initial numbers (one indexed) x(3) = x(1) + ...

code-golf math sequence

TuxCopter

Ænglisc/20 ang.wikipedia.org/wiki/H%C4%93afodtramet

Calvin's Hobbies

@TuxCopter I found a missing (or extra?) parentheses on "from independent sources"

I wish there was a way to link to a find X in page kinda thing

TuxCopter

@Calvin'sHobbies How is that relevant to my message... ?

H Walters

Most annoying thing about wiki is for lack of better terms "redirect decay"... when someone decides to redirect X to an article Y that supposedly includes it, then Y deletes the content that included it

Calvin's Hobbies

@TuxCopter Just making conversation :/

TuxCopter

22:35

Yes but you replied to my message and your message is not relevant to the message you replied to

Calvin's Hobbies

Well, I found that page while trying to complete the CMC

H Walters

Technically, finding something completely unrelated to what you're looking for is at the heart of wikipedia

TuxCopter

Starting at a page like Intel 8080 and ending on South Africa is common lel

Calvin's Hobbies

@TuxCopter wiki.polyfra.me/#

TuxCopter

@Calvin'sHobbies My browser is dying

Stewie Griffin

22:41

Does anyone remember the challenge about finding the index of the highest running mean of length n in a binary list? If the input was: 1001111001` and 4 then the output should be 3, because the starting index of the 4-digit sequence with the highest mean starts at position 3 (zero-indexed).

I can't remember how it was phrased :/

trichoplax

There are 73 challenges tagged binary

67 of those are golf

Stewie Griffin

@trichoplax Thanks!.

Don't know why I didn't think of searching for it using tags...

@trichoplax, at least now I can call this safe :)

TuxCopter

TFW assembly has a builtin that golfing languages don't have

betseg

Intel machine code library is huge.

trichoplax

@StewieGriffin Did you change your mind?

Dennis

22:48

I actually came this close to adding popcnt to Jelly.

TuxCopter

But it's still longer than the Jelly solution -.-

Stewie Griffin

Crap, wrong challenge :(

Dennis

There's also that, yes.

Stewie Griffin

@trichoplax Yes... :(

betseg

X86 instruction listings

The x86 instruction set refers to the set of instructions that x86-compatible microprocessors support. The instructions are usually part of an executable program, often stored as a computer file and executed on the processor. The x86 instruction set has been extended several times, introducing wider registers and datatypes as well as new functionality. == x86 integer instructions == This is the full 8086/8088 instruction set. Most if not all of these instructions are available in 32-bit mode; they just operate on 32-bit registers (eax, ebx, etc.) and values instead of their 16-bit (ax, bx, etc...

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