The Nineteenth Byte

Redwolf Programs

7:00 PM

One week of school left for me

user

@RedwolfPrograms Hunted.

Wzl

we can compromise and have both :)

but it's in their best interest to gather

Neil

@user even the Cartesian product of an infinite number of finite lists is uncountable, so the Cartesian product of an infinite number of infinite lists is not very interesting at all

user

Why isn't that interesting?

Unrelated String

wait what

is my understanding of infinity just broken or is there a very obvious bijection between the cartesian product of infinitely many {0, 1} and the positive integers

actually i can see how there would be a problem going from the product to the integers

hyper-neutrino

7:17 PM

well forming a bijection from {0,1} to R is easy

which also proves why you can't do that with Z

Unrelated String

ah

hyper-neutrino

cartesian product of A lists of size B is B^A, right, so cartesian of infinite finite lists is N^inf whereas finite infinite lists is inf^N and thus countable

(ignoring whether or not you are allowed to just do that with infinity :P)

Unrelated String

lol

oh yeah of course you can't represent everything from {0, 1} ^ inf as a positive integer with binary because a vast majority of those tuples have infinitely many ones

but you can use binary to map it to any interval of the real numbers

and from there just to the real numbers in general

New Sandboxed Posts

7:37 PM

0

A: Sandbox for Proposed Challenges

Print a BigNum Your task is to take an arbitrary precision unsigned integer, separated into 7-bit parts (a.k.a. base 128), and output it in base 10. Rules: All calculations must use a maximum of 16 bits. So you can't just do something like this in Python: lambda a:str(sum(a[i]<<i*7for i in range(...

hyper-neutrino

8:08 PM

according to New Posts, Neil has posted a Charcoal answer to Peter is a pick eater like 5 times

user

Pulling a Leaky Nun, eh?

A username

Hyper, how?

hyper-neutrino

what do you mean

A username

How can yoou cloose a question by yourself

Dammit sticky o key

hyper-neutrino

I'm a moderator...

Most actions I take on CGCC are immediately binding

A username

8:21 PM

But you only count as 3

not 5

hyper-neutrino

since when

again, my actions are binding, they don't "count as 5", they effectively count as infinite more or less

rak1507

unlimited power

hyper-neutrino

and it's not just that; three people can delete a post (under certain conditions) by voting, but if I delete it, it's not like just throwing three votes at it, because then other people can't vote to undelete it after I've deleted it

Wzl

since you have infinite, it won't hurt if you share some with me right?

hyper-neutrino

your mortal form cannot handle such power

Wzl

8:22 PM

just a little bit

user

@hyper-neutrino It's okay if my mortal form is damaged as long as I get to wield even a portion of that power for just a few seconds

Wzl

*undeletes many memes and unleashes their even greater power on the unsuspecting CGCC*

hyper-neutrino

another thing is, for example, you can only VTC and VTRO a post once each, but I don't have such limitations

New Sandboxed Posts

0

A: Sandbox for Proposed Challenges

Given two reals \$a\$ and \$b\$, output some reals \$r_i\$, such that \$\sum r_i=a\$ and \$\prod\left(r_i+1\right)=b\$. You can assume that it's possible. You can also assume that your float type have infinite precision. Test cases: 2,3 => 2 or etc. 2,4 => 1,1 or 1/2,(sqrt(57)+9)/12,(9-sqrt(57))/...

hyper-neutrino

@NewSandboxedPosts IMHO not interesting enough to warrant a new challenge; at least, I'd downvote it because even if it significantly changes the requirements it took literally next to no effort to make this.

caird coinheringaahing

8:39 PM

@NewSandboxedPosts Dupe no? Integers are reals, therefore one of these would be a dupe of the other

caird coinheringaahing

9:55 PM

CMC: Given the name of a Minecraft item (ignoring Education Edition only items, including items to be included in 1.17/1.18), output two distinct values to determine whether that item is one of the 24 gold-related items that can be used to get the Oh Shiny advancement or not

Redwolf Programs

I have a repo of item names if y'all need it

github.com/RedwolfPrograms/minecraft-lists/blob/master/1.16/…

There's also block names in a different list in the same folder

Useful if you're making a datapack of some sort (or CMCs :p)

caird coinheringaahing

I get the feeling that a regex based solution would be the shortest tbh

Redwolf Programs

Can I assume there's no minecraft: prefix?

caird coinheringaahing

Yeah, sure

Redwolf Programs

10:11 PM

I could 22

Oh wait no

You're counting 1.17/1.18

In that case I think there's 25, right?

JS, 51: x=>!x.match`^.*gold(?!_n)|bel|light_w|glis|gil|clo`

Returns opposite false for golden items and true for non-golden ones

(golden as in one of those 2[45])

Golf a byte by replacing light_w with .*ht_w

Actually .*t_w even works

Hey wait

I forgot ^'s precedence

The .* can be removed altogether

x=>!x.match`gold(?!_n)|bel|t_w|glis|gil|clo`

g_m saves a byte over glis

JS, 42: x=>!x.match`g[io]ld(?!_n)|bel|t_w|g_m|clo`

lyxal

10:41 PM

Mmm y'all sure had fun with your stars last night

Redwolf Programs

I...I'm stupid

I forgot to specify the ID of the answer to fetch in NP/SP

Wait no, it's just the wrong ID

So Sandbox Posts would take over a minute to post

Disappointing

I saw that :p

Unfortunately because I used my sandbox post as a test, SP missed this

Oh nice, NP/SP's process ID is exactly 4000 at the moment :p

lyxal

You've never lived until you've had a glass kettle. Watching water boil in a transparent container is interesting as all heck.

Redwolf Programs

Lucky

lyxal

If SE allowed me to upload 6 minute videos I'd show you a slowmo video of it boiling at the end

New Sandboxed Posts

11:01 PM

0

A: Sandbox for Proposed Challenges

Return shortest integer-is-one-of function metagolf Given a number of integers as input, your task is to write a function in JS, which returns a function that checks if an inputted integer is any of those. For example, f([1, 2, 4]) would return a function which would return true if given 1, 2, or...