The Nineteenth Byte

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lyxal

00:14

@Ginger interesting.

Truly, interesting.

If they think that's hard, then they really wouldn't want to see half the stuff that happens here :p

Like use an actual esolang, you js.fvck nerd

Bubbler

and they failed to fxckify console.log part

lyxal

reddit.com/r/ProgrammerHumor/comments/w1vxcl/…

Bubbler

I can't believe I just wrote x/x+y instead of x/(x+y) in python

OldSandboxPosts

01:00

Sandbox posts last active a week ago: Change the Temperature of Swatchlings

user

01:30

@Bubbler a true apler would use the division symbol too :p

2 hours later…

Bubbler

03:36

I've been thinking about esolangs' memory models. Many langs tend to die out in activity because it is very hard to construct even a relatively simple logic if it involves keeping one or more arrays, and I think it's mainly the fault of the memory model (e.g. a tape, one stack + modifiable 2D space, two stacks...)

so here's an idea: an infinite tape of deques of ints.
- you have a pointer that selects the current deque, which you can move around like BF
- you also have a register which you can use when moving a value from one deque to another
- a deque is a deque, you can push and pop a number and do basic arithmetic on both ends

CMP: Onions?

PyGamer0

🌰

lyxal

03:56

@Bubbler the only problem I can see with deques is that you'd need either a) two sets of the same operator or b) a modifier / quick that changes the end operations are performed on. I can see that becoming a feature that doesn't get used very often,meaning it'd probably be better to only do ops on one end

emanresu A

04:34

@user JAVA is an official meme on CR

Bubbler

@lyxal I guess I could get away with "swap the front and back" command (mainly thinking about plain imperative langs, imagine Befunge or ><> or Labyrinth). I certainly see some algorithms easier to implement if both ends are available, e.g. selection sort using two deques

Or only allow push/pop for tail and do all the other ops on the head only

emanresu A

05:03

@Bubbler idea: declarative 2d lang

graffe

05:44

if I have two coins with probs p1 and p2 respectively of giving a head, what is the expected number of coin tosses until they are both heads?

is it just 1/p1+1/p2?

Bubbler

if one is head but one is not, do you throw both again?

graffe

you throw the coins one at a time until it is a head

Bubbler

then I guess you can throw first one until it is heads, and then throw the other, which is 1/p1 + 1/p2

graffe

thx

1 hour later…

flawr

07:09

Would anyone mind looking through this draft? codegolf.meta.stackexchange.com/a/17770/24877

1 hour later…

Sandbox Posts

08:28

A: Sandbox for Proposed Challenges

Count the cells Given a multi-line string as input containing characters "|", "_" and " " (space), count the number of cells it contains. A cell is the following structure of 3 characters by 2 lines: _ |_| That is, an underscore on one line (the characters to its right and left don’t matter), and

1 hour later…

flawr

09:36

I just got a notification that many of my flags (asking for deletion of sandbox-posts that were posted on main) were declined. Is this no longer wanted? If so, what should we do instead if we find posts like these?

Bubbler

It has been asked recently and both opinions (delete/not delete) seem to have significant support

I interpret that as "editing finished sandbox posts down to a link is standard, but the OP has the choice to delete it or not"

flawr

I see, I was confused because the sandbox instructions (still) clearly state that posted challenges must be deleted.

Thanks for the link!

I don't see much value in keeping them, and I think it is laregly outweight by the reduced clutter if we do remove them.

Bubbler

09:55

I also agree that it is (pretty much objectively) better to delete them, as they are now simply entirely removed from view due to the sort order

Neil

ah, the joys of having 10k rep

personally I don't like the change to sort order for deleted posts

in fact I never liked the "click to refresh" anyway, it made no sense for 10k users

2 hours later…

Sandbox Posts

11:38

A: Sandbox for Proposed Challenges

Halve a string string code-golf open-ended-function Given a string \$ x \$, we say another string \$ y \$ is half of it, if both of the following properties are true: \$ y \$ is a (not necessarily continuous) subsequence of \$ x \$ - there exists a strictly increasing sequence \$ a_i \$ s.t. \$ ...

2 hours later…

lyxal

14:02

Hey gamers, bad news - the lyxtures room will have to remain frozen. No zoomies this semester

at least, not at this stage

Sandbox Posts

14:47

A: Sandbox for Proposed Challenges

Prime sieve game (Work in progress) A long time ago, I was learning BASIC on my TI 99/4-A and I came across a 2-player game based on the Sieve of Erathostenes. The rules of the games were: there is a 10x10 board containing all numbers between 2 and 100 (the first square is blank). 2 players alter...

1 hour later…

PyGamer0

15:58

i think ngn is working on this..

again the same old terse c style

how do people even program like that...

NoHaxJustRadvylf

16:26

→ 36 messages moved to Off-Topic TNB

4 hours later…

GingerBot

20:35

Anyone who has a Raspberry Pi please go to off-topic

We (I) need your help

Neil

20:55

I'm not allowed raspberry pie for medical reasons

graffe

21:11

How can I test if a large integer is prime in python?

NoHaxJustRadvylf

Sympy

graffe

@NoHaxJustRadvylf thanks!

gist.github.com/Ayrx/5884790 Looks ok if randrange will work with huge ranges

“ For big integers it never returns (waited like 1hr), even with K=5 (int of 200k+ decimal digits). Is there any fast primality tests for such big numbers?” is worrying

NoHaxJustRadvylf

Even the best deterministic prime checking algorithms are O((log n) ** 6), which will be pretty slow at that size of number

NoHaxJustRadvylf

21:55

Do any code editors out there have a shortcut like ctrl+arrow that only goes back one word in camel/snake case?