The Nineteenth Byte

He just wants some s-love

New Main Posts

-1

Q: please slove this eq in c

Write a complete program that reads all the integers from a file called ‘file.txt’ and stores them in an array (number of elements is not known). Your program should then remove the duplicated numbers, find and print the sum of all the even numbers in the array as well as the sum of all the odd n...

c

Riker

@DJMcMayhem wasn't actually troubleshooting he doesn't have code to troubleshoot

DJMcMayhem

I know

But it's still worthwhile to point out that he's not going to get help not because it's homework, but because we aren't for code help

12:17 AM

@ConorO'Brien Oh, you could possible add a time constraint to your challenge but that's up to you.

@Quintec huh, I also play piano and viola, although possibly not to the standard that I once used to

Quintec

Wow I would’ve expected many piano + violin but not viola

@Quintec bunch of string hipsters

>this is a bad website – Ahmad Alqam
He's not wrong :^)

@Quintec yeah well my dad and sisters already played violin and cello so I thought I'd finish the quartet

(we actually never played any quartets together)

Conor O'Brien

@Veskah brute force doesn't take that long actually

12:31 AM

Hmm, I'm partially tempted to post 'a'..'z' for Arnauld's 1D keyboard challenge

@ConorO'Brien Well then let it rip

Conor O'Brien

neat

Q: Smallest Diversifying Exponent

Huh, apparently it scores 8+infinity

Oh, needs unique swipe patterns. Blast

New Main Posts

1

A pandigital number is one which contains every digit from 0 to 9 at least once. 1234567890, 1902837465000000, and 9023289761326634265 are all pandigital. A diverse pair of numbers is a pair of numbers \$(a, b)\$ such that \$a^b\$ is pandigital. \$b\$ is called the diversifying exponent. Challe...

code-golf math

2:42 AM

Her daughter is named Help I'm trapped in a driver's license factory.

real-life SQL injection :o

Didn't she mean to say, "I hope you learn to keep backups"

eh, why?

Jo King

2:57 AM

@FlipTack For Symbolic Python, is this program intended behaviour? or is it some bug with globals/locals?

what on earth is symbolic python

Jo King

@LeakyNun Python without alphanumerics. Think JSFuck with a couple of quirks

great

Jo King

all the variables are named different amounts of _s, which doesn't get confusing at all

@feersum SQL injection, so no.

Dennis

3:08 AM

A backup would have solved their problem despite the SQL injection though.

True, true.

Apparently my password manager has set my password to ************ after using it on a website which replaces all typed characters with * instead of using input[type=password]

That's hilarious.

3:23 AM

Anyone know what the dice symbols on the edges of a poker chip are for

Betting, I bet.

That's actually a good question; I don't know. They're also arranged such that opposite numbers sum up to 7 just like a real die.

@Pavel entropy

I've tried searching the internet but I can't find anything

3:57 AM

Do you prefer the syntax array[0..3] for slicing array from 0 to 3 or array[from: 0, to: 3]

can a mod unfreeze: chat.stackexchange.com/transcript/46888

@Downgoat former. although ideally latter would be an overload too

@ASCII-only how would VSL memoization detect is arg set is same. Using binary equality or ==(lhs:rhs:)? Also should it then therefore have a heap store?

@ASCII-only oic yes good idea

@Downgoat yeah. imo former may be more flexible, e.g. if you have 0..10..2 (or array[[1, 2, 3]])

@Downgoat what's the difference between the 2

TIL libc support complex number

@Downgoat complex numbers are pretty primitive as far as non-primitive types go

4:04 AM

@ASCII-only meaning should we use memcmp(stack, existingArgStore) or call @ArgTy.staticMethod.==(%lhs, %rhs)

with memcmp we can do smarter sorting and hashing for fast lookups unlike with ==()

there is no Hashable interface ATM working on interfaces rn but they will take time

@ASCII-only hm ok so 4 + 4i I guess for syntax?

@Downgoat possibly imo do that only if there are other number-like literals like that

@ASCII-only example of other?

bignumber in certain languages (C++, JS)

ah

@Downgoat Uncheesed.

4:11 AM

@El'endiaStarman wrong language, this isn't Cheddar :P

4:27 AM

@ASCII-only Take it up with the goat itself.

in VSL, Oct 31 at 19:56, by Downgoat

anticheese

@ASCII-only so for bignum is 123n or 123L better syntax

5:24 AM

@ETHproductions foldl / foldr

tio.run/##yyrNyUw0rPj/vzi1pKAoNTmzODM/…

@Downgoat ~~whatever JS uses~~ whatever is the least unexpected

@primo what's this replying to

asking if julia had a reduce construct

@Downgoat Who uses 123n

javascript?

ew

5:30 AM

@Pavel javascript

ah ninja

L probably makes more sense, although possible ambiguity between "long" fixed precision, and arbitrary precision

5:43 AM

J uses x for arbitrary precision

and many others for other purposes, even I didn't know most of these

lirtosiast

halloa!

6:27 AM

aloha?

Nathan Merrill

6:47 AM

Let's say you've got a bag of 100 items. Each item has a type, and there are 20 of each type.

What's the chance of getting an identical random sample of 5 items twice (without replacement)?

Another way to ask this question is: We both have a hand of 5 poker cards. What are the chances we have the same suits?

7:22 AM

if anyone is not afk here: what esolangs.org language to (try to) add to TIO/implement next

if less people created new languages, and instead contributed to languages they like, the world would be a better place

Yes. Yes it would

I'm dying just from all the BF derivatives there

@ASCII-only Random page gave me this one

@primo I'm responsible for 4 of TIO's 588 entries. All are extensions or interfaces to a language I like :-)

d=(^^,)z

i wonder how popular TIO is outside code golfing circles

it seems to be the most extensive site of its kind at the moment

7:33 AM

Oh yeah also *><> has an interpreter too

Forgot that it didn't have to be in JS lol

wtf.

And ><> v2 (basically) is always a nice thing to have

@Bubbler hmm. worth implementing asap?

Well, i don't think it has looping so it isn't TC.

Fatalize

Dec 13 at 9:06, by Fatalize

"i also cheated with Julia" ( ͡° ͜ʖ ͡°)

7:49 AM

@ASCII-only this one looks interesting, but then, good luck writing Hello World in it

@Bubbler not TC, not exactly a language

bounded-storage machines can still be useful

Looks like it not be able to even attempt most challenges

that's a class that includes most practical computers

But 256 is very, very bounded

7:54 AM

Trigger has only 256 bits.

A: Sandbox for Proposed Challenges

256 bytes of memory is easily enough for many programs

I've used processors with 224 bytes of RAM before now

I think, at least (there's a range of them with different sizes and I can't remember if that size is one of the ones I've used)

there's a processor in the same range with only 16 bytes of RAM

New Sandboxed Posts

0

Is it a D? Given an image, check if it's a letter D. Here D is defined as: Let pixels labeled \$(x,y)\$ where larger \$x\$ mean at right and larger \$y\$ mean more up. If there exist \$x_0, x_1, f_0, f_1, f_2, f_3\$ such that: \$ (f \rightarrow (x\rightarrow f(x+1)-f(x)))^n (f_i) (x) >0\$ fo...

@ais523 but is it enough to merit being on TIO

well, it's enough to answer many PPCG challenges

Trigger has 256 bits and it's already on TIO, at least someone thought it's worth it

Somewhat golfy BF in a different way from SMBF

8:11 AM

Trigger was used in the polyglot, I think

also, I think Easy is a really interesting language (although the way it was initially marketed was really obnoxious so many people ended up disliking it as a result)

@ais523 Yes.

oh, I was thinking of this one

it's quite a good language for polyglots, though, so not surprising it's happened multiple times

11:42 AM

ಠ_ಠ i have a canvas answer to this but it outputs trailing spaces and i have like no way of removing them

37 bytes might as well just post it here for the curious

@dzaima Have you tried not outputting them? Though I can imagine that Canvas isn't made for removing whitespace

Is the output in Canvas always a rectangle of ascii, or can lines have different length?

@maxb there is no way for me to convert a canvas object (think 2D char matrix) to the lines without doing crazy things with the map function

@maxb lines can be of different length, but canvas objects are forced to same-length lines

Emigna

Canvas could probably use a trim function that works in canvas objects by replacing spaces with empty strings or something like that then

@Emigna yeah a thing for that would be useful (though it'd have to be implemented as converting to an array of strings)

Emigna

Convert Canvas -> stringArray sounds like it could be useful in general

11:54 AM

@Emigna agreed, I've had times before i've wanted that

really if i weren't lazy i could make the output not add trailing spaces (since there's a difference between a space and nothing/background)

Emigna

The issue is remembering to write it down once you come across it and not assuming you'll remember it the next time you work on the lang ;)

@dzaima oh right that'd mean that it wouldn't output trailing chars if i changed the background to something other than space, and special-casing that feels wrong

I have a TODO-list in MathGolf, where I just add new features that I'm not going to work on right now, a bunch of times I've said "oh right, that thing was a neat idea that I totally forgot about"

@maxb yeah i really should make an actual todo list instead of always referencing my ever-growing non-existent infinitely long todo list :p

@dzaima One thing that really helped me with development is adding user tests. Basically every answer that I can find in MathGolf I save as a test with expected input and output. Then before pushing to master, I just run all the tests, check that all operators behave as expected, and that I don't break any answer posted by another user on PPCG. No more worries about breaking anything existing

12:04 PM

@maxb i deliberately have broken things and have a version saved in the permalink though. I do however use my examples as tests

Performing 243 tests...
........................................
........................................
........................................
........................................
........................................
........................................
...
All unit tests passed!
Total untested characters: (20/255) &,:|¢ÑÖÜéüΩ‼₧≈≡═╝╬█☺

I will also have to break things soon, having both space and non-breaking space as characters in the language is just a hassle.

@dzaima lol charcoal has had that for a long, long time. And it's basically never used

@maxb eh, I just test (almost) every feature I add, plus a selection of answers from PPCG

@maxb you could do what jelly did with \n and ¶ - make an alias for nbsp, not breaking anything but making future code more readable

12:21 PM

@dzaima Oh that's smart. Since I do compilation to an intermediary file anyway, I can just have two characters mapping to the same byte. Thanks!

@ASCII-only I guess as your language gets more popular, you can't add every script ever made in your language. I think it's difficult to test new features, mainly because there are a lot of implicit handling and combinations of operators that might behave wonky

Fatalize

12:34 PM

@FlipTack Who did you listen to?

flawr

1:05 PM

@Adám is this also your native language?

@maxb it's still possible for Charcoal, since Neil's the only one using it = ~~not a while lot of posts~~ Neil posts way too much :/

That said, I should finish vectorization, damnit

@maxb implicit handling?

@flawr Yiddish is mostly spoken by orthodox Jewish people, but I don't think it's considered a "native" language. Not really sure though.

Pretty sure Adám's first language is Danish though.

are there unorthodox Jewish people?

@ASCII-only Depending on if a string/int/float/list is on the stack, each operator which consumes one item from the stack can have more than 4 outcomes (more for lists of lists/strings/ints etc), and operators that consume 2-3 things from the stack are even worse. So even if you have a test for an operator, you might not have covered every possible case.

@LeakyNun non-orthodox, I'd say.

1:17 PM

so are there?

@LeakyNun From my understanding, orthodox Judaism is a way of life in addition to being a religion. So if you are more secularized, you aren't labeled as orthodox. Though according to his PPCG description, @Adám is the right person to ask about this. I should clarify that I'm not Jewish

@dzaima ironically Charcoal does have a "no trailing spaces" option but anything interesting seems to disable it @ASCII-only

@LeakyNun Sure, just like Catholicism, there are multiple branches of Judaism (at least to my knowledge). Some of my family is Jewish, but they're not strictly orthodox.

@ASCII-only doesn't work anyway e.g. ＵＴＦχ«Ｍι→↙⁴↙ι»‖ＭＭ←↖¤*

(full tree: ＵＴＦχ«Ｍι←↘⁴↘ι»⸿Ｍ↑Ｅ¹¹¦⁴×_⁴↑¹²‖Ｍ←¤*)

@H.PWiz how did i miss that <_<

flawr

1:32 PM

@J.Sallé I think @Adám uses yiddish to talk to his children, so I would expect that it is a native language for them.

@flawr yeah, that's true. I was thinking of 'native' as referring to a country/land rather than people.

@primo Did you have a newline? :)

yeah

I only just found big

@Neil argh okay ill golf my answer

1:36 PM

i actually have no idea why it isn't necessary

i found it after dsloc posted the 44

Nor me. I'm currently thinking about Conway's constant. There isn't a cheap way to compute it, right?

i'm evaluating the polynomial and its derivative

Oh, wow. I didn't think that was viable.

in some languages, hardcoding is likely shorter

@Zacharý whoosh

1:41 PM

js, julia, python and ruby all actually solve for the root, i'm sure ton's perl6 is also

@dzaima actually that's auto-deverbosified code, I think one of the Ms might be unnecessary @ASCII-only

@feersum Why'd you whoosh me?

The point went over your head.

Oh. Why'd you wait so long?

I don't know, maybe I should hire someone to be 24/7 oncall for my chat replies.

1:46 PM

(I remember you being here before, but guess I was wrong)

1:57 PM

@Neil hmm. Looks like I'll need to change how empty spaces work, and add some delete commands

@Neil which one(s)

Oh wait

:|

what I don't understand is why the spaces are getting added, it works if you only draw one line...

@Neil one?

Pretty sure it's from reflectmirror

The more complicated canvas modifying commands currently sometimes use hacks, like turning the canvas info a rectangle

Anyway, I should probably implement vectorization properly first, then start on fixing that, then possibly some more fancy stuff (more fancy being relative of course)

Maybe it's time for a complete rewrite

@maxb ez, coverage testing is a thing

2:16 PM

actually what is coverage?

@LeakyNun finds out which lines are/aren't covered by unit tests

and how does travis do that?

@Neil wait, actually which I've mightn't be necessary?

@LeakyNun basically some kind of code injection (well, I'm assuming so at least)

@ASCII-only The Ｍ betwen the ⸿ and the ↑

will code injection cause autism?

2:21 PM

@LeakyNun ???

@ASCII-only yeah, but I tried something simpler, sec

@Neil but if it isn't there won't it be parsed as print(up, map(...))

@flawr my first language and "father-tongue" is Danish. Yiddish was the last language I learned. My mother-tongue in the literal sense is modern hebrew. I mostly communicate in English though due to work

@ASCII-only oh, right, sorry I forgot it was a Map and not a For

@Adám well I hear a lot of Yiddish in your home

2:23 PM

@LeakyNun for interpreted languages probably the same way profilers work, which are either VM hooks or possibly modifying then evaluating the code

@ASCII-only ＵＴ↑χ↘χ two lines - no trim

@Neil huh, I'll need to really look into that later then :/

@LeakyNun there are non-orthodox Jews. They do not keep Jewish law as traditionally understood.

@Adám what do they call themselves?

Jewish religious movements

Jewish religious movements, sometimes called "denominations" or "branches", include different groups which have developed among Jews from ancient times. Today, the main division is between the Orthodox, Conservative, Reconstructionist, and Reform movements, with several smaller movements alongside them. This denominational structure is mainly present in the United States, while in Israel, the fault lines are between the Orthodox and the non-religious. The movements differ in their views on various issues. These issues include the level of observance, the methodology for interpreting and understanding...

2:27 PM

@J.Sallé actually, orthodox Judaism isn't split in mutually exclusive factions. The groups are purely cultural, and regard each other as equally valid.

@LeakyNun yes, I'd definitely call my wife a native Yiddish speaker in that her Yiddish is far superior to her second language, and she grew up speaking and reading only yiddish. My kids are truly bilingual as they claim to be equally comfortable in english.

@ASCII-only I know, it's just that my makeshift unit testing is not suited for that at all, but I guess I could do a rework of it

@primo For Conway's constant in Bash, I found the last byte-save entirely by accident, and could not have guessed that it would work. What a coincidence!

:D