The Nineteenth Byte

c--

00:26

@Steffan 72 bytes [lambda a:[a[y:x]for x in range(len(a))for y in range(x)if x-y in a[y:x]]](ato.pxeger.com/…)

idk how to send a link apparently

Jonah

00:45

I have a question idea, but decent chance it's a dup even though I can't find it searching. Hoping someone here knows. Idea is this: Input is a list of code golf scores, output is each score's overall ranking. Ties receive the same rank, but consume ranks below them. So if you had scores 5 5 5 6 6 7, the ranks would be 1 1 1 4 4 6.

emanresu A

I had that idea a few eeks ago

thejonymyster

how often do you eek

att

I seem to remember something like that, lemme see if i can find it

Steffan

@Jonah I don't think it's a dupe

NoHaxJustRadvylf

01:11

@lyxal I don't care about mobile support because I'mma make up for it by designing a programming language which is designed specifically with mobile users in mind

emanresu A

... what

NoHaxJustRadvylf

Everything will be designed with things like autocorrect, the additional annoyance that's required to add non-alpha characters, the space-space-to-add-a-dot shortcut, etc. in mind

And since the iPhone keyboard and, IIRC, the Android one have some non-ASCII characters within easy reach, I'll make those meaningful

thejonymyster

wtf awesome

will learn

NoHaxJustRadvylf

It'll probably be a while before I get around to it though, since I've got like half a dozen other projects which are currently higher priority (e.g., getting SOCK² up and running before school starts again)

Adam

Anyone here have experience with Markov decision processes?

Bubbler

01:29

@Jonah There's an aplcart entry for that, but I couldn't find any reference to it in main

so probably not a dupe

NoHaxJustRadvylf

@Adam As in like, Markov chains?

thejonymyster

01:54

wow i got my first "i am from <country> and i need to give you <large sum of money> because <reason>" email

emanresu A

Nice. try and troll them for as long as possible

thejonymyster

theyre getting around the spam filter by sending the message as a pdf :P

emanresu A

Please troll them. It'll be hilarious

Adam

@NoHaxJustRadvylf en.m.wikipedia.org/wiki/Markov_decision_process

lyxal

@thejonymyster a major milestone for any computer enthusiast - you're one of us now :p

emanresu A

01:57

@thejonymyster First, say that you are interested and then say that your communications aren't "secure" enough and you should use a secret code - replace some of the words witt stuff like "Juice" or "Canada"

thejonymyster

does anyone want my email password im not funny enough for htis

actually i wonder if you could forward it to someone and just have them respond and like woulod they even notice

...forwarding someone a spam email is a pretty funny idea in general

...does anyone else like writing sentences this way

user

@thejonymyster idk what this conversation was about but i want it

If you need ideas you can copy what @NoHaxJustRadvylf did a while back

NoHaxJustRadvylf

Good old Western Onion

Jonah

02:24

@Bubbler @Steffan Thanks.

Sandbox Posts

02:46

0

A: Sandbox for Proposed Challenges

Fibonacci word fractal code-golf fibonacci fractal ascii-art graphical-output This is a only draft. I'm not sure what this challenge should be like. The Fibonacci word is a sequence of binary strings defined as: \$F_0 = \$ 0 \$F_1 = \$ 01 \$F_n = F_{n-1} F_{n-2}\$ The first few Fibonacci words...

emanresu A

04:19

````````````SW2AQ

The cat is back lol

lyxal

weird name for a cat but okay

I mean, I can understand that you might name a kid "finger", but naming a cat "back lol" doesn't sound right

Sandbox Posts

04:52

0

A: Sandbox for Proposed Challenges

A better Hexagony template code-golf ascii-art hexagonal-grid We once made a Hexagony template without actually knowing it. But after a bit of experience with Hexagony, it becomes apparent that it is not enough; sometimes the source code is too short for the given hexagon, and you get totally une...

Sandbox Posts

05:42

0

A: Sandbox for Proposed Challenges

Anti-divisors of a number code-golf math number-theory Given a positive integer n, output its anti-divisors. From A006272: Anti-divisors are the numbers that do not divide a number by the largest possible margin. E.g. 20 has anti-divisors 3, 8 and 13. An alternative name for anti-divisor is unbi...

graffe

05:59

Could anyone kindly read and comment on codegolf.meta.stackexchange.com/a/25030/108721 please

Sandbox Posts

0

A: Sandbox for Proposed Challenges

When to give up and start again Consider the following setup. A random integer \$x \in \{1 \dots 10\}\$ is chosen. Now \$x\$ real number points are chosen between 0 and 1. You want to find out if there are 10 points that have been chosen and if so, you win a prize. In this game you can look in...

graffe

07:24

Everyone asleep?

forest

Yes.

Actually I was just fighting an OOM on my computer that I only barely survived.

Had to kill a bunch of random processes because the OOM killer was being an idiot.

graffe

That's bad. Is this Linux?

PyGamer0

@graffe no, now its 12:56 pm for me :p

graffe

@PyGamer0 :)

6-11am GMT seem to be our quiet times

forest

Yeah Linux.

graffe

07:33

OOM on Linux has killed me before

mousetail

Challenge idea: Radiation Hardening Koth. Programs take turns removing one character from each-other. Last program still producing valid output wins.

forest

It's frustrating when you're on a system with X and you ctrl+alt+F2 to get into a TTY and nothing happens... It's hard to tell if it'll ever switch over and if it's worth waiting, or if it's deadlocked trying to find the memory.

graffe

@forest yes :(

@mousetail I like your answer to my challenge

mousetail

TY

All the other answers are analytical and I just brute forced

graffe

I am preparing a vaguely related one at codegolf.meta.stackexchange.com/questions/2140/…

If you have any comments they would be gratefully received

@mousetail yes. Do you think codegolf.stackexchange.com/a/250845/108721 is actually better than all the others?

mousetail

07:45

Hmm it's hard to tell what's going on exactly

graffe

08:35

@mousetail would you mind looking again? I have tried to improve it

please :)

PyGamer0

@lyxal github.com/PartehDev/siacB-v2

hmmm

lyxal

08:55

Heh, I remember the time someone made a Keg clone and claimed it was better

We went on to make several esolangs together lol

@PyGamer0 wait hang on that's not like 51AC8 at all lol

What's the point of a fork if you're going to make an entirely different language?

Why not just make a new repo?

mousetail

Wanted to just modify some small things at first but after playing around a bit wanted to change a lot more?

Sandbox Posts

0

A: Sandbox for Proposed Challenges

Radiation Hardening Koth king-of-the-hill radiation-hardening The goal of radiation hardening is to make a program still work after you remove a byte. However, what if a skilled competitor is purposefully trying to mess with you? In this game, each bot will take turns removing one character from ...

lyxal

@mousetail that'd make sense normally, but the original language was a stack based golfing language and the fork is a more verbose esolang with keywords and everything

Like it's really a completely different language now

mousetail

Wanted to just copy the parser logic at first maybe?

Then later decided it wasn't suitable

lyxal

Nope

The parser was completely rewritten

And doesn't even match the format of the old parser

mousetail

09:06

Strange

lyxal

Like the original repo was SBCS, this new one is a more traditional esolang. E.g. Programs start with WAKEY WAKEY and end with BEDTIME

PyGamer0

@lyxal exactly

@lyxal that is what i was thinking

lyxal

It's like someone forked Vyxal and made a ArnoldC clone instead

PyGamer0

yeah

lyxal

My suspicion is that they've gotten confused by the name (siacB, which kinda could look like BASIC in reverse)

PyGamer0

09:10

oh lmao

Unrelated String

bcais

PyGamer0

lol

graffe

09:36

The wandering robots answers are just getting better and better!

mousetail

Just retrying till you get a better score

graffe

@mousetail :) that's not really in the spirit of the game

When are doing 10^7 trials that's not too easy either

I can't say I understand the math deeply but it is interesting that kaseorg's result can be beaten

I wonder if he will come back with something

emanresu A

09:53

@PyGamer0 That's hilarious

lyxal

11:10

@PyGamer0 I say that as someone who was originally confused by the name, thinking it looked like BASIC (the programming language) in reverse

Unrelated String

i thought it was stacb

lyxal

Well the uppercase B makes it look like it's backwards

thejonymyster

13:02

1. Do we have a "get a 2d slice of a 2d array" challenge? 2. would it be ok to have it as a single step of a larger challenge?

I wanted to expand on the "all slices that include their length" to "all 2d slices which contain both their width and height"

but i can totally see "get a 2d slice" being its own challenge already, though itd probably be based on whatever indices

i cant imagine just having it be the other half though

"determine if a 2d list contains its length and width" is not a good challenge

i think? lol

damn yea i guess that makes the whole challenge bad

mousetail

Would "input()" be a valid python answer to codegolf.stackexchange.com/questions/59347/… ?

If given no input it will wait forever

lyxal

> The program must take no input (however, reading from a file is allowed), and should not print anything to STDOUT. Output to a file is also forbidden.

mousetail

Yes, it takes no input

I interpret that as the program should require no input to run

Not sure if that's the intended interpretation

lyxal

@mousetail well the thing is that it can have input

file reading is allowed

just no stdin

Adam

I mean, if you interpret it literally, it says you are not allowed to give the function any input

So input() has to work

mousetail

13:18

Is no input also input? That's the real question

lyxal

only works in a repl context though

ato.pxeger.com/…

or in a context where interactive input is a thing

mousetail

Yea category would need to be python repr

Or it will end when reaching EOF

graffe

Hi @lyxal

lyxal

@mousetail well really it depends on whether you require an infinite loop to use some sort of control structure, and whether you define looping as needing to repeat source code commands or just the interpreter looping forever internally

@graffe well hello there!

mousetail

It's probably not technically a loop, just waiting on a blocking system call

lyxal

13:28

doesn't exactly feel like a loop - it's not calling any high-level code you wrote repeatedly

only interpreter/compiler code

mousetail

Hmm maybe if I wrote it in bytecode but then there is a 2 byte solution already

graffe

@lyxal would you mind taking a look at my new sandboxed challenge please?

I am not going to post it to a few days :)

lyxal

why can't I look in [0.9, 1]?

also, I think it could be better to use boxes instead of number lines

so you'd have 10 boxes in a row

and you can either move left or right each time

New Posts

1

Q: Add parentheses to Polish notation

In most programming languages, arithmetic is written with infix notation -- i.e. the operator is put in between the operands -- e.g. 1+2. In contrast, with Polish notation (a.k.a prefix notation), the operator comes before the operands -- e.g. +1 2. As long as the number of operands for each oper...

lyxal

and the x points are placed inside the boxes

graffe

13:58

@lyxal I think your idea is better

@lyxal you can't look in 0.9 ... 1 so that you can be in position where you don't know for sure if x=10

Even though you have inspected all the boxes

It's so helpful having someone read your draft question

lyxal

I'm not usually one to review lol, but happy to help :)

graffe

@lyxal thank you :)

You are my co-lead reviewer currently

lyxal

well luckily I can understand the challenges :p

thejonymyster

@mousetail valid or not that is pretty funny

graffe

@lyxal :)

graffe

14:35

A code only answer full Kaseorg....hmm ... Can anyone read rust?

PyGamer0

@PyGamer0 according to the wishlist this is now ∴ĿĠ, one byte better, so i guess progress

lyxal

gosh dang it I read that as dyadic maximum, transliterate and group-by consecutive instead of monadic maximum, vectorised length, group-by consecutive

graffe

14:51

Hopefully much improved version codegolf.meta.stackexchange.com/a/25030/108721

Please take a look and let me know what you think

Sandbox Posts

0

A: Sandbox for Proposed Challenges

Convert English to integer code-golf When saying a number out loud in English, or writing it out in words, speakers use a certain method. Since there's lots of variations from person to person on the specific method, I'll define the format I'm using here: [TODO] Some things to note about the fo...

graffe

@lyxal improved?

lyxal

Much better

I like it a lot!

It feels reminiscent of one of those TedEd riddle videos that I never solve but enjoy watching regardless because the solution is fascinating

(that's a good thing btw - those riddle videos are really good, as is your challenge idea imo)

graffe

😁 thanks

I just have to resist posting it for a few days

Or until Kaseorg explains his amazing solution, whichever is first :)

graffe