The Nineteenth Byte

ATaco

00:06

Alright, now wait events exist.

x = (1 second pass);
when y is *{
	print "Every 3 seconds!"
	when x {
		y = 1
	}
}
y = 1

Program that outputs every 3 seconds.

It's kind of less interesting than I had hopped, seeming as most programs just use assignment instead of function calls.

hoped, even.

ATaco

00:38

when range is *{
	local n = range
	if range <= 0{
		rangeout = {}
	}else{
		range = n - 1
		rangeout[n] = n
	}
};
range = 81
x = rangeout
print x

Generate a table of values from 1 - 81

Downgoat

@ATaco O_o why does your website have sign in with steam button

also what is .jsd

ATaco

@Downgoat Things I've not made public yet.

@Downgoat A personal document type because I like to reinvent wheels.

ASCII-only

damnit

ATaco

Also y u lookin' at my website ;-;

ASCII-only

Charcoal could do this one if it had a way to get cursor position

ATaco

00:46

I'm surprised you don't.

Downgoat

@ATaco ;_; ono what is wrong with look at ur website

ATaco

Nothing, It's just surprising.

HyperNeutrino

@WheatWizard Are you here right now? I have a question about the OEIS explanation you gave.

nvm I have to go now ;_;

I put a comment though

Sisyphus

01:12

Is there a shorter way to get -1 if x<0, 1 if x>0 in Python than cmp(x,0)? Don't care about x=0 case. Feels like there should be, but I can't find it

ATaco

cmp(x,0) is the fastest tmk.

x>0*2-1 might also work...

Sisyphus

Unfortunately need brackets...

1-2*(x<0)

ATaco

Curses.

So yeah, cmp(x,0) is your best bet.

But what's the context, what are you doing with it..?

#AvoidXY

Sisyphus

someone posted a golf to the 'reverse integer' challenge on leetcode and challenged people to beat it

But you need to preserve sign

so -123 -> -321

s=cmp(x,0) looked golfable but maybe not. I though there might be some bit wizardry

ATaco

If you were using Numpy, you could just do sign(x)

So you've got something like int(reverse(s=eval(input()))*cmp(s,0)

Phoenix

01:22

x&-1

Sisyphus

I don't think x&-1 does anything, because the binary represention of -1 is all ones

Step Hen

@trichoplax here you go. do anything you want to it - as long as it doesn't error, it's valid. Try it online!

Maltysen

@Dennis oh good, I was starting to get worried.

Dennis

Certainly took them long enough. Thanks again! :)

ATaco

Try it online! is the shortest I can get it ;-;

HyperNeutrino

01:30

hi dennis you're a mathematician can you help me with an OEIS sequence? ;_;

Dennis

That depends very much on the field.

HyperNeutrino

Modular Arithmetic mostly

Power residue classes modulo some prime

1

A: Explanation of OEIS:A000236 - Residue Classes

Let's break this down a bit. You are given $n$ as the placement in the sequence and you are looking for some $m$. $m$ is the largest number such that no two members of the sequence $1, 2, 3, 4, ... , m-1, m$ satisfy a specific property, $P(x,y)$. $P(x,y)$ is true if $x$ and $y$ belong to a pow...

Mostly I'm waiting for Epsilon/Wheat to reply to my comment because I'm confused

Sisyphus

@ATaco I used backtick but yeah pretty much the shortest I can do

It just looks so golfable!

Dennis

Ugh, OEIS and its golfed definitions.

HyperNeutrino

yup :I

Oh ENW/WW was wrong in the comments

Hm now I'm still confused

AAAA confused ಠ_ಠ

totallyhuman

01:54

9 hours ago, by totallyhuman

PSA: pls put your test cases in a better format (comma/space delimited) at the bottom, especially if you have a lot of them

betseg

CMC: any hash algorithm's check file that includes its own hash

MD XF

@betseg Ooh that should be on main

betseg

but with which tag

MD XF

code-golf

be sure to use sandbox first though

Step Hen

@betseg you'd have to talk about hashes that truncate

Dennis

02:02

@HyperNeutrino The fact that the Google search "power residue class" finds only 5 results (including the OEIS, your question, and some SE mirror) isn't exactly promising.

betseg

@StepHen yeah i mean like md5 and sha*

Step Hen

@betseg yeah, what I'm saying is that if the hash truncates the input, you could stick the hash after the point at which it truncates

Dennis

@Dennis Nevermind, "power residue classes" finds hundreds.

@betseg I don't think I understand what you mean.

betseg

i think feersum can come up with this. (context: codegolf.stackexchange.com/a/97842/56721 )

$ cat file.md5
1234567890ABCDEF1234567890ABCDEF file.md5

@Dennis ^

Wheat Wizard

@HyperNeutrino I have no idea why the first term is 3. I am probably wrong in my understanding of the sequences

ATaco

02:08

MaybeLater is now on TIO

Dennis

@betseg Unless we get Google to participate, I doubt that's possible for MD5, let alone SHA-1.

betseg

:(

HyperNeutrino

@ATaco I'll look at it sometime. MaybeLater.

ATaco

@HyperNeutrino I've never heard that pun before... /s

HyperNeutrino

@Dennis Of the 5 results for "power residue class", one of them is the Stack Exchange question I posted, one is OEIS, and one is an internet thing that's stealing Stack Exchange content ಠ_ಠ

ppperry

02:17

Why is math so hard and complicated?

Dennis

@HyperNeutrino Yes, I already said that.

HyperNeutrino

if I actually understood the sequence it might be slightly less impossible kek

@Dennis Oh sorry I somehow missed the entire part in brackets ಠ_ಠ but yeah, I've found a few papers including the ones on the OEIS page and they're not the most understandable things on the internet either

ppperry

@HyperNeutrino Without even rendering the MathJax

HyperNeutrino

yeah :(

ATaco

Apparently, Shift+ins is paste on windows.

HyperNeutrino

02:20

@MDXF ಠ_ಠ

This is going to take you a while...

MD XF

:P

HyperNeutrino

Thank you for not editing every single one at once

Step Hen

@MDXF -6 on meta and you're still doing it? :P

ppperry

it takes much more work to revert bold changes than to be bold.

MD XF

@StepHen The -6 on meta was for doing a bunch at once and flooding the active page

I'm not

I'm doing three a day

for a year

I don't think it'll flood the active page too bad :P

ppperry

02:24

@WheatWizard The first term isn't three; the second term is 3

there is no first term; that's what " OFFSET 2,1 " means

(as I already said in math.se chat)

Wheat Wizard

@ppperry I understand that the n for the first term is 2, but its still the first term

ppperry

oh, just wanted to point that out

HyperNeutrino

0

A: Remove noncompeting status from all submissions

Please Don't Correct me if I'm wrong, but how often do really old posts show up on the front page? Unless you keep editing them, not very often. So, now that the new decree has been set in place, let's just ignore the old posts and apply the policy to the new ones. I'm not saying that you're not...

I personally don't think it's a good idea or a necessary thing

ppperry

Perhaps I haven't been helping by golfing other's years-old posts in the bolwers-golfers fraction war

HyperNeutrino

lol :P

Yeah also don't pop that to the front page since code-bowling isn't allowed anymore

Or is it?

ppperry

02:31

what?

HyperNeutrino

Never mind, it is.

I keep getting it confused with underhanded which is officially banished :P

code-bowling and popularity-contest are just harder but not banished.

ATaco

code-bowling is only mythed to be doable well.

ppperry

still, it's not often to see an answer whose bytecount was reduced by 10^152 orders of magnitude

HyperNeutrino

true lol

A lot of CJam answers with huge absurdly insane things

Mostly Dennis like "354325767254315625472 commas hehe"

ppperry

yes

ATaco

02:33

Biggest I've seen in a code-golf competition was 5 orders of magnitude

ppperry

32

A: What's the shortest contiguous subset of ASCII you need to output the rest?

Unary, N=1 14680262330376163203871465704220787333741951071 bytes Uses only the '0' byte (ASCII 49). Golfed about 4.13253e+60 bytes out of @Comintern's solution. Credit still to him :) In the original Brainfuck: ++++++++[->++++<]> [>+>+++<<-]>>- [-<.+<+>>]<< [>-.<-]

"Golfed about 4.13253e+60 bytes

ATaco

EDIT: Golfed out 9.097887e+87 unnecessary characters.

I like this post.

ppperry

And unary actually won the challenge!

Why is there something wrong with bumping old posts?

HyperNeutrino

There's nothing wrong with bumping an old post, it's bumping any posts for no good reason.

Sometimes Community will actually just bump posts up because it has answers that the community should see :P

ppperry

and I'm tempted to do a really hacky golf of the java answer on that question by converting it into a function that prints to STDOUT.

(which is allowed)

HyperNeutrino

02:44

Oh crap

ppperry

... what?

HyperNeutrino

No wonder this sequence is so hard

The creator of it won the John Riordan Prize in 2015 ಠ_ಠ

That's the prize for the best solution to an open problem on OEIS xD

ppperry

oh no

maybe I should have realized that A00236 would be hard and chosen a different bytecount.

HyperNeutrino

¯\_(ツ)_/¯ too late now rip

Husnain Raza

wait is challenge rip?

HyperNeutrino

02:47

I'm beginning to wonder if emailing Dr. Alekseyev was a good idea... :P

Step Hen

@HyperNeutrino oh lol

HyperNeutrino

I mean, he has his email address on his site so I would assume he doesn't hate getting emails...? ¯\_(ツ)_/¯

Step Hen

brb reposting OEIS challenge

HyperNeutrino

ಠ_ಠ

It's not entirely dead yet. I think Epsilon/Wheat is getting close to figuring out what it means

MD XF

@HyperNeutrino Inbox messages are a thing :P

HyperNeutrino

02:49

@MDXF :P

Husnain Raza

why is it so hard to compute?

Step Hen

no one knows how to

MD XF

@ppperry yeah maybe

HyperNeutrino

Let's not talk about that :P

ppperry

still, even if I chose a two hard sequence, that doesn't mean you have the right to change my bytecount without my consent!

MD XF

02:51

:P

On an unrelated note. How did my BF challenge suddenly get attention after being unanswered for two months?

6

Q: Trivial Brainf**k Substitution Interpreter

Brainf**k is the most famous esoteric programming language and is the inspiration for hundreds of other esoteric languages. In fact, there are quite a few languages that are so heavily based off of Brainf**k that the only difference is the characters used. Your challenge is to interpret one of th...

Step Hen

@MDXF someone answered it

Wheat Wizard

@HyperNeutrino Have you figured out why f(2)!=1?

HyperNeutrino

I still have no idea.

Wheat Wizard

Have you tried reversing the exponent and the base? Its not 100% which is which from the description.

ppperry

done. Golfed 45 characters from the java answer, turning it into a terrible hack.

HyperNeutrino

02:54

I'll try that.

ppperry

I hope I haven't made some mistake golfing submissions.

Step Hen

@HyperNeutrino this is what explode does: Try it online!

@HyperNeutrino mess around with the input or the code (as long as it doesn't error you're fine)

HyperNeutrino

@WheatWizard But doesn't the exponent need to be constant? I think that's why it says "n-th power residue class for input n

@StepHen o.0 what even is that

Wheat Wizard

Thats what I thought

But maybe the base is the constant part

The definition is not 100% clear

HyperNeutrino

Would the base be the input then?

Wheat Wizard

02:57

Yes

Step Hen

@HyperNeutrino I don't really know anymore

HyperNeutrino

@StepHen lol

@WheatWizard Still doesn't make sense:

https://tio.run/##fVNLb5tAED6zv2JyqAClrowj9WDFlnpIj1VV9WZZaA3jZGVY0LI4@Ne7M7PgkDbqxYZ5fI@Zob34l8Y@XK8lHqFuyqLSXZe0zSu6z9A6U2O6VpFD3zsLO4onxpY4UG5eAsfGgSToF5y2z5hkU3KvFIMbe77hH3SHM3jtnL7ABnZ7FZ111SM9cwl8CjUqEjaKrlT0@mIqhFBmG8@E0k84AeiLblu0ZSIlKUUnSFY/Ms/FU0WAv99AdvMqUEq1lel8kCYupKVLaj2YWleUWGTsIHgnCinXtgxPu0W2BxoNyeYJSTMLliQLNiMiPG5gwqTCGzzjr@FisCqnUURYdbiGg0N9mqYR6P@HQX1FU7dNZzyP4rsmEIp9rIplBchxAQyylMw7lN@uRwmOYriPV3KrkZagXvD4VVimHUmUNxDoZAMy52/L5XL18DVc4nzCtwtg8vU/FsJ6Aqyw1wU1zW/v791H9GR9UhfyIof8dsQVWs7AArIAxxb1gQ6g2Jk9hfkf7iHbp7MZTTcUNC/4qkaW8eOJTQe…

Wheat Wizard

Instead of the residue class of $f(x)=x^n$ its the residue class of $f(x)=n^x$

HyperNeutrino

(see invmodclass rather than modclass)

Step Hen

@HyperNeutrino just brute force every python program until you find one that works

Wheat Wizard

02:58

I would email the guy. If I were him I'd be happy to get emails about my OEIS sequence

HyperNeutrino

Neither does the original:

https://tio.run/##fVNLb5tAED6zv2JyqAClrowj9WDFlnpIj1VV9WZZaA3jZGVY0LI4@Ne7M7PgEtXqxYZ5fI@Zob34t8Y@Xa8lHqFuyqLSXZe0zTu6z9A6U2O6VpFD3zsLO4onxpY4UG5eAsfGgSToF5y2r5hkU3KvFIMbe77hH3SHM3jtnL7ABnZ7FZ111SM9cwl8CjUqEjaKrlT0/mYqhFBmG8@E0k84AeiLblu0ZSIlKUUnSFY/Ms/FU0WAf9xAdvMqUEq1lel8kCYupKVLaj2YWleUWGTsIHgnCinXtgxPu0W2BxoNyeYJSTMLliQLNiMiPG9gwqTCGzzjr@FisCqnUURYdbiGg0N9mqYR6P@HQX1FU7dNZzyP4rsmEIrdV8WyAuS4AAZZSuYDym/XowRHMdzHK7nVSEtQL3j8KizTjiTKGwh0sgGZ87flcrl6@houcT7h2wUw@fofC2E9AVbY64Ka7h@2qHHG@qQu5EWu@O8FV2g5AwvIAhb70wfafrEzewrzPzxCtk9nA5oOKAhe8EmNLOOXE5sOOn3E@J7vWhubMNt…

Step Hen

@WheatWizard I agree

HyperNeutrino

@WheatWizard Ah okay. Well I already emailed him about an hour ago so I hope he doesn't mind and I hope he replies soon :P

Wheat Wizard

Ok good

Ping me when he replies please

Step Hen

he probably has 15 year old C code sitting around

ppperry

02:59

this is getting out of hand -- in a good way

Step Hen

on a laptop in his attic

ATaco

In other news, I'm rather proud of MaybeLater.

Wheat Wizard

I suspect that the problem has no know algorithm to solve it even though I don't know exactly what the problem is.

HyperNeutrino

@WheatWizard Alright, I will. :)

Anyway, I gtg. o/!

ATaco

o/

Wheat Wizard

03:00

@HyperNeutrino You pinged me. Does that mean he replied? :P

ppperry

I think this demonstrates a loophole in the challenge:

come up with some code that solves a non-trivial sequence of a byte length like 236

then post code for the sequence it solves

ATaco

I forgot to add support for negative and decimal number constants

ppperry

hope no one answers within an hour

totallyhuman

Nice

ATaco

But I still love it.

ppperry

03:02

and win, if no one can solve A00236 in a week.

Wheat Wizard

@ppperry You can always hard code the solutions

ppperry

no

ATaco

@WheatWizard Standard Loophole.

Wheat Wizard

Thats bullshit

ppperry

no, hardcoding is fine, generally

Wheat Wizard

03:03

Then you can redirect it to a non-computible sequence and win

totallyhuman

Yes you can hardcode 1000 values

ATaco

125

A: Loopholes that are forbidden by default

Hard-coding the output Unless the question is an obvious exception (the primary exception being those tagged kolmogorov-complexity), your program is expected to do work, not just print a pre-calculated result. If the question doesn't require input and so a solution which just prints the answer w...

ppperry

"n will never be larger than 1000"

totallyhuman

@ATaco the question explicitly allows it

ATaco

Oh, then that's fine.

ppperry

03:04

but, quoting dennis (in a comment on a deleted answer to that challenge), " Just because the next values are unknown doesn't mean that they do not exist"

I wonder what happens when you post a link to a deleted post in chat

does it get autoformatted?

Anonymous

@ppperry Nope, it's just a plain link, that will lead to 404 for people without the privilege of seeing deleted posts

Wheat Wizard

But there are sequences that are not computable. Just because the next term exists doesn't mean you can compute it.

ppperry

oh

ATaco

Can someone link the challenge..?

ppperry

51

Q: One OEIS after another

This is an answer chaining question that uses sequences from OEIS, and the length of the previous submission. This answer chaining question will work in the following way: I will post the first answer. All other solutions must stem from that. The next user (let's call them userA) will find the...

math sequence answer-chaining

Wheat Wizard

03:07

The next answer should be 60843 bytes.

ppperry

"[n will never be] out of bounds for the sequence", so non-computable sequences are just terminated at however many terms are listed.

As are aforumlaic sequences like A00017.

Why did that even make it into OEIS?

ATaco

A000236 is evil.

ppperry

no

Anonymous

Friendly reminder that I still need more handwriting samples

Maltysen

@ATaco .....wat was that

ATaco

03:10

oeis.org/A000236

Maltysen

@ATaco no i mean i read that

ATaco

Look at it, look at it and fail to computationally solve it.

Maltysen

i keep on trying to read it but at each part of the sentence i realize that it doesn't get any clearer

@ATaco does it just mean m=(bigger adjacent residue)+1

ATaco

I have no idea, you're asking the wrong person.

Dennis

@Mego Believe me, you don't want to add my handwriting into the mix.

ppperry

03:13

goodbye. Have to go now.

Anonymous

@Dennis Believe me, I do want that

Anonymous

More samples = better challenge

Downgoat

woah wtf why does Mego's answer have -9 votes

> Disallowing non-programming languages is like disallowing arbitrary classes of languages

this doesn't even make any sense

it literally contradicts itself

I guess we can start to make English a programming language?

I mean I can execute it with deterministic results with a human!

ATaco

I think the point is, is that we shouldn't disallow arbitrary programing languages.

Downgoat

...

Anonymous

03:25

@Downgoat Which answer?

Downgoat

-9

A: Do submissions have to be answered with a programming language?

No, answers in non-programming languages are not allowed This site is Programming Puzzles and Code Golf. From Wikipedia: Programming involves activities such as analysis, developing understanding, generating algorithms, verification of requirements of algorithms including their correctness a...

Anonymous

@Downgoat A lot of people want to use stupid languages like HQ9+ and such, I guess

Phrancis

Monking, golfers

MD XF

@Phrancis Monks are monking? Where?

Downgoat

does that mean the "what are programming languages" post is meaningless?:

50

Q: What are programming languages?

Often, answers to questions asking for "programs" or talking about "programming languages" utilize things like sed, awk, … in order to get around having to write an actual shell script. Therefore, a question comes to my mind: What qualifies as a programming language? Sure, ultimately the OP ca...

discussion policy faq-proposed

Phrancis

03:28

@MDXF On Code Review, they are ;)

Maltysen

k

Anonymous

Give me a room name and I can move the messages

ATaco

@Downgoat I kind of feel so, if you're question can be answered by, say, echo, than it's probably not a great question.

Primes and Squares

For discussion about programming, math, linguistics, music, sc...

Phrancis

29

A: What's a Zombie? And what are the many other memes of Code Review?

Meme: Monking Originator: Morwenn Cultural Height: The 2nd Monitor Background: A morning greeting to the Monkey doing his monkey-business, in other words: monking Examples: A small chat search Variations: Monkernoon, Monkevening, Monknight, ... Important is only that it begins with Monk... ;...

Anonymous

→ 49 messages moved to Primes and Squares

Anonymous

03:32

A square number of messages... How appropriate

HyperNeutrino

a square of a prime

Anonymous

Indeed

HyperNeutrino

:D

ATaco

That's a wonderful number.

MaybeLater is probably the most programming language looking language I've written.

totallyhuman

14

A: What's a Zombie? And what are the many other memes of Code Review?

Meme: phpoop Originator: Mat's Mug Cultural Height: The 2nd Monitor Background: php is frequently used (see "related tags") along with oop. The contraction of the two gave birth to phpoop... only in the chatroom (don't you dare actually create that tag!). Related: phpoop-security

Phrancis

03:47

Oh yeah, phpoop

Also related phpoopmysqli

And poor fools concatenating variables into query strings and passing those straight to the database in a Bobby Tables manner

ATaco

msql -> query("SELECT * FROM users WHERE user_name = '".$_GET["username"]."' AND password = '".$_GET["password"] . "';")

Phrancis

Exactly^

ATaco

(Sorry if I hurt anyone's eyes with that)

Husnain Raza

rip in peace oeis chalenge

Phrancis

@ATaco You wouldn't believe how many of those there has been on CR. I think it went down because so many PHP people got scolded (in a friendly manner) on CR answers

Is PHP code considered "legacy" at this point?

ASCII-only

03:55

@Phrancis PHP <5 code probably

ATaco

pleasedontsqlinjectme.net/login.php?username='; DROP TABLE users; --'&password=frankie

Destructible Lemon

how was php ever not legacy?

ATaco

PHP is rather sadness.

Phrancis

PHP was pretty cool for a long while

But then Node.js came out

And since Node.js is vastly better, a lot of sites switched over

ATaco

I used to use PHP, but that was because JS saddened me, because webdesign.

But it could be worse

Phrancis

03:59

I think part of the problem with PHP is that it somehow just "worked", even with horrible code it would just figure out a way to be functional

ATaco

Unless you didn't have a semicolon after a block, because of how ambiguous such a thing is.

Phrancis

lol

ATaco

{echo "Hello"} is invalid, but {echo "Hello";} is valid. Because that last semi-colon cleared up so much

Phrancis

Languages with mandatory semicolons are, largely, highly overrated. PHP doubly so.

^arbitrary opinion, don't lynch me :)

ATaco

MaybeLater has semicolons ;_;

Phrancis

04:05

world's tiniest violin playing

Destructible Lemon

@ATaco it's not so bad

ATaco

04:20

13 imaginary internet points for a MaybeLater quine.

MD XF

Question - one can get kick-muted (or flagged and pinged by a mod) for using the word "reta**ed" in chat/comments. However, I'm sure that an equal number of people are offended by the phrase "Jes*s Chr*st" and swear words... but those words are never/rarely flagged. Why?

ATaco

Generally, offensive language isn't necessarily a ban, however, it's required you be considerate of others, see: "Be Nice"

ASCII-only

@MDXF probably because the former is more insulting than just offensive?

ATaco

If someone will get particularly offended by a phrase, and voices that concern, you should back off.

MD XF

No I know no one should use it on SE, but I also think people shouldn't use words offensive to the entire Christian population, and curse words are never necessary.

ASCII-only

04:24

@MDXF ok well the people that would get offended probably just care less here (or aren't here at all)?

ATaco

Has something in particular brought this up?

MD XF

Oh I slipped and said it (in reference to my obnoxious raspberry pi) yesterday and got pinged. But nobody cares 'bout these 567+1687+33+408

I know it was my fault. I'm just curious

@ASCII-only Maybe. except me lol

ASCII-only

@MDXF #1 because it's part of a language name, #2 is a swearword and bad but not really that offensive imo, #3 is only offensive when used on a person, #4 isn't offensive at all wth

ATaco

I want to acknowledge that "Fuck" is not legally considered a swear in Australia. src

MD XF

@ATaco Heh that's funny

ATaco

04:29

That said, anything's fine if it's not offending anybody personally.

None of this tumblr, "Someone might be offended" stuff, be a bit realistic.

MD XF

@ASCII-only and @ATaco I don't want to sound like I'm retorting, or that I disagree, and I don't want this to turn into an argument of sorts so I'm just gonna stop :P

ASCII-only

@Phrancis if dna_symbol in "ACTG": return {"A": "T", "C": "G", "T": "A", "G": "C"}[dna_symbol] maybe?

ATaco

That's fair.

@ASCII-only I was about to do that myself... :)

HyperNeutrino

do 'ATCG'['TAGC'.index(i)]. still errors on invalid input

ASCII-only

@HyperNeutrino 0/10 unclear

Phrancis

04:32

^

HyperNeutrino

Personally I think it's more concise and clear than yours :P

yours has a map with a huge amount of non alphanumeric characters which at least for me is difficult to read

ASCII-only

@MDXF not really arguing but just imo swearwords aren't really that offensive anymore? i mean at least they are used like everywhere now so they've gradually lost (some) offensiveness?

Phrancis

@ASCII-only What kind of sorcery is that? Do these {} work as a Dict or more like curly brackets in other languages?

HyperNeutrino

dict

ASCII-only

@Phrancis >_> that's a dict what does it look like

Phrancis

04:34

That's lovely

MD XF

@ASCII-only I see that as a big problem in and of itself

ASCII-only

@Phrancis ~~hang on a sec~~ nvm you're only processing one [bp ~~base pair~~ wait only one it's nucleotide right] at a time oh well

Phrancis

Hanging

@ASCII-only What's a bp?

ATaco

BLASTER PUNCHER

BADGER PSYCHIATRIST

Phrancis

Insta-star

ATaco

04:37

I had a few more lined up but I'd rather not starbait.

Phrancis

@ASCII-only Yeah just a utility function to process each char

ASCII-only

@Phrancis :| seems very slow

Phrancis

@ASCII-only So yours would just do the whole thing in one swoop?

ASCII-only

i have an idea (also no not that one)

ATaco

XY problem, giv full program.

Phrancis

04:39

"""
In DNA strings, symbols 'A' and 'T' are complements of each other, as are 'C' and 'G'.

The reverse complement of a DNA string `s` is the string `sc` formed by reversing the symbols of `s`, then taking the complement of each symbol
(e.g., the reverse complement of "GTCA" is "TGAC").
"""

def reverse_string(string: str) -> str:
    """Reverse the order of the characters in a string."""
    return string[::-1]

The rest is the other thing

It's from ROSALIND, just for practice not business

I'm not looking for a clever one-liner BTW ;)

But that if/elif/else sequence just seemed cumbersome, so I asked here for a shorter version. Not at all opposed to process the whole string at once instead of a char at a time

ATaco

Oh right, I don't know Python.

ASCII-only

import re
import string
complementor = string.maketrans("ACGT", "TGCA")
def reverse_complement(sequence):
    if not re.match("[ACGT]+$", string):
        raise SyntaxError("Sequence must be composed only of A, C, G, and T")
    return sequence.translate(complementor)

idk if this is clear

probably not

Phrancis

I had no idea that maketrans or translate existed

ATaco

#WelcomeToPython

Phrancis

# TODO read documentation about string package

HyperNeutrino

04:45

# TODO Read documentation on everything

Destructible Lemon

@ASCII-only is that missing a ^

HyperNeutrino

match only matches at the start

Destructible Lemon

o ok

ATaco

pinkpanther.java
	// @TODO
	// @TODO
	// @TODO DODO DODO DODO DODOOOOO

ASCII-only

@Phrancis NO WHYYY

ATaco

04:47

I use Regex far too much.

MD XF

@Phrancis Is that even allowed (messages like that)?

ATaco

To generate #1 albums, 'jay --help' recommends the -z flag.

@MDXF Generally shunned.

HyperNeutrino

Stats are too move notable messages into the starboard for later users to see, usually containing message that are interesting, of quality, important, ~~or posted by Dennis~~, not to express opinions

ATaco

Don't star that ^^

If you could be banned for starbaiting I'd be screwed.

HyperNeutrino

lol

(tempted to star that to get you banned /s)

ASCII-only

04:52

import re
import string
complementor = string.maketrans("ACGT", "TGCA")  # creates the extended ASCII codepage as a 256-character string where each character in the first string is replaced with the corresponding character in the second
def reverse_complement(sequence):
    if not re.match("[ACGT]+$", string):  # if you don't know this and are reading this comment
    # expecting an explanation please read up on regices
        raise SyntaxError("Sequence must be composed only of A, C, G, and T")

Anonymous

→ 2 messages moved to Trash

Anonymous

Let's not starbait

Phrancis

@Mego My bad, TY

ASCII-only

import re
import string
import random
complementor = string.maketrans("ACGT", "TGCA")
def reverse_complement(sequence):
    if not re.match("[ACGT]+$", string):
        raise SyntaxError("Sequence must be composed only of A, C, G, and T")
    result = sequence.translate(complementor)[::-1]
    for _ in range(len(sequence)/10):  # oh no mutations happened whoops
        result[random.randint(0, len(sequence))] = random.choice("ACGT")

@Phrancis ^ this is so much clearer than the original one right :P

ATaco

Seems about right.

ASCII-only

05:02

well crap

fixed

Potato44

Does anyone here speak french? If so can someone tell me what the comment syntax is here. At least I think it says something about comments, or maybe a shebang.

ProgramFOX

@flawr Ah, thought this wild be invalid. My bad!

Phrancis

@Potato44 I speak French, hold on

French: Ce document décrit le GOTO++.
English: This document describes the GOTO++.

Potato44

@Phrancis in the notions de base section i think it says something about comments

Phrancis

@Potato44 This?: On peut placer des commentaires. Soit en mettant GOTO, auquel cas tout est ignoré jusqu'à la fin de la ligne, soit en mettant #!, auquel cas tout est ignoré jusqu'à ce qu'on rencontre !#, sur la même ligne ou sur une ligne suivante.

Potato44

05:14

Yes that

@Phrancis thanks for having a look

Phrancis

We can add commentaries. Either by entering GOTO, in which case everything is ignored until the end of line, or by entering #!, in which case everything is ignored until we encounter !#, on the same line or the following line.

@Potato44 ^

Potato44

Okay, thanks. I think those restrictions on comment syntax might be a bit too restrictive for what I need it for

Phrancis

Glad I could be of service

ATaco

I probably should add comments to MaybeLater.

Anonymous

@ATaco Maybe later

ATaco

05:29

I should have named it literally anything else

I have added comments.

Primes and Squares

Transcript for