Jelly Hypertraining

caird coinheringaahing

12:46 PM

Hello anyone!

Mr. Xcoder

@cairdcoinheringaahing Can you please think of a CMC?

caird coinheringaahing

@Mr.Xcoder I'll try :P

CMC: Given 2 positive integers between 1 and positive infinity (a and b), and an integer between 1 and 4 (n), perform either root mean square, arithmetic mean, geometric mean or harmonic mean on a and b, depending on n. You may choose the mapping

Mr. Xcoder

uhmmm

caird coinheringaahing

Totally 100% original :P

Mr. Xcoder

That's definitely gonna go over 15 bytes for me

@cairdcoinheringaahing Any idea why V doesn't work?

Æm
P½
²SH½
PH÷S
Ŀ

caird coinheringaahing

12:55 PM

@Mr.Xcoder Ŀ isn't implicit, you have to tell it which link to run

Mr. Xcoder

okok

caird coinheringaahing

1 have 19 bytes

Mr. Xcoder

@caird 18 bytes

caird coinheringaahing

18 bytes

Mr. Xcoder

Although mine doesn't seem to work?

caird coinheringaahing

12:56 PM

@Mr.Xcoder In what way?

Mr. Xcoder

wait...

@cairdcoinheringaahing 18 bytes.

Wait, is that yours too?

caird coinheringaahing

@Mr.Xcoder 18 bytes

I think we had the same idea :P

Mr. Xcoder

PH÷S doesn't seem to work for mine...

caird coinheringaahing

@Mr.Xcoder In what way?

Mr. Xcoder

@cairdcoinheringaahing We should use Ḥ instead of H

caird coinheringaahing

1:01 PM

@Mr.Xcoder Oh yeah :P Although I was using 2÷İS$ until you posted your code :P

ಠ_ಠ I just realised that I've been using ×/ instead of P in my replacement atoms gist

Mr. Xcoder

@cairdcoinheringaahing Why not just İSHİ

caird coinheringaahing

@Mr.Xcoder Because I chose the longer way :P

Mr. Xcoder

Basically it's 1/(x/2) instead of 2/x

And surprisingly it's golfier ಠ_ಠ

caird coinheringaahing

@Mr.Xcoder Yeah, that's Jelly for you.

If it's long in maths, its short in Jelly, and vice versa

Mr. Xcoder

I see. I will come up with a CMC now

CMC: Given a list of positive integers, get the ratio between their RMS and HM.

(cc @cairdcoinheringaahing)

caird coinheringaahing

1:06 PM

define("RMS" && "HM")?

Mr. Xcoder

@cairdcoinheringaahing Root mean square and Harmonic mean.

11 bytes here

ಠ_ಠ

caird coinheringaahing

13 bytes ಠ_ಠ

@Mr.Xcoder Example?

Mr. Xcoder

[6, 7] -> 12.980740866741112

ಠ_ಠ Mine only works for lists of two-elements.

@cairdcoinheringaahing 12 bytes: L÷İS$µ³²SH½+

caird coinheringaahing

@Mr.Xcoder Are you sure you mean ratio? RMS of [6, 7] => 6.46 and HM of [6, 7] => 6.52 so shouldn't the ratio be 1.01?

Mr. Xcoder

@cairdcoinheringaahing Sum, sorry ;_;

Excuse

me

Up for another CMC?

caird coinheringaahing

1:16 PM

Sure. Do you want to make one or should I?

Mr. Xcoder

I think you should

But pls nothing that involves strings.

caird coinheringaahing

How about parsing?

Mr. Xcoder

Oh no :'-(

caird coinheringaahing

@Mr.Xcoder Ok, I had a Calvin challenge in mind, but thought it would be very difficult :P Thinking of another one

Mr. Xcoder

I think we should do some CMCs with Levant and Cthulhu too

caird coinheringaahing

1:19 PM

@Mr.Xcoder That could be fun :P

I have a number-theory main question that doesn't have a Jelly answer yet. Should we try it?

Mr. Xcoder

I am planning to add a bazillion built-ins to it

@cairdcoinheringaahing Ok, which?

caird coinheringaahing

64

Q: Calculate Phi (not Pi)

No, I don't mean ϕ = 1.618... and π = 3.14159.... I mean the functions. φ(x) is the number of integers less than or equal to x that are relatively prime to x. π(x) is the number of primes less than or equal to x. Let's say that "not pi" is then π̅(x) and define it to be the number of composites...

Mr. Xcoder

:O that has no Jelly answer?

Sure let's try

caird coinheringaahing

@Mr.Xcoder It's from 2015

Mr. Xcoder

And it's damn easy in Jelly

@cairdcoinheringaahing How many bytes to do you have rn?

caird coinheringaahing

1:24 PM

@Mr.Xcoder 7 but its failing for one of the test cases

Mr. Xcoder

@cairdcoinheringaahing I have 6.

Doesn't fail for any test.

caird coinheringaahing

Huh, I have 8 bytes

@Mr.Xcoder How do you implement π̅(x)?

Mr. Xcoder

And I have a very nice formatted output :-)

@cairdcoinheringaahing Count the primes less than X, subtract from X, decrement.

Is the output of my program ^

caird coinheringaahing

@Mr.Xcoder Same here :P

Mr. Xcoder

My footer is 100RÇ€µ100R,µZG

Redundant but helpful

caird coinheringaahing

1:28 PM

@Mr.Xcoder Mine is 100R,Ç€ZG

Mr. Xcoder

Nice. Can I see your current code?

caird coinheringaahing

@Mr.Xcoder ÆPÐḟL’ÆṪ

Mr. Xcoder

Oh...

caird coinheringaahing

I known how to shorten it

Mr. Xcoder

Hint: ÆC

caird coinheringaahing

1:29 PM

6 bytes: _ÆC’ÆṪ

Mr. Xcoder

Exactly mine.

Byte-to-byte

@cairdcoinheringaahing Can I post as a CW?

caird coinheringaahing

@Mr.Xcoder Posting right now :P

Mr. Xcoder

ok ping when you post ;;

nvm

caird coinheringaahing

@Mr.Xcoder Posted

\o/ Beat 05AB1E by 2 bytes :P

Mr. Xcoder

I think the 05ab1e is golfable now

caird coinheringaahing

1:32 PM

:O it does have a Jelly answer by Dennis and we outgolfed him

Mr. Xcoder

@cairdcoinheringaahing I cannot see it?

caird coinheringaahing

@Mr.Xcoder Marked as non-competing

Mr. Xcoder

I do see it now

I think we can golf ours though

caird coinheringaahing

@Mr.Xcoder How so?

Mr. Xcoder

Oh no we can't... Jelly's built-in for the thing I was thinking about is 2 bytes ;-;

@caird I added links to our profiles.

@caird I added an explanation as well.

caird coinheringaahing

1:40 PM

Yeah, I saw :P

Mr. Xcoder

How would one solve that challenge in Levant?

(don't ask about Cthulhu yet)

caird coinheringaahing

@Mr.Xcoder Hold on, opening the design page :P

Mr. Xcoder

And I think Gaia beats Jelly again.

caird coinheringaahing

Levant, 5 bytes: Č@_’Ť

Mr. Xcoder

Yeah Gaia beats Jelly

caird coinheringaahing

1:43 PM

@Mr.Xcoder 4 or 5 bytes?

Mr. Xcoder

5

Posted the Gaia solution.

caird coinheringaahing

ಠ_ಠ TIL you can't vote on your own CW's

@Mr.Xcoder Careful, we could attract attention from the Huskers

Mr. Xcoder

haha gaia code is so cute: ṗ⁈l(t

@cairdcoinheringaahing I can do it in Husk too, no problem :P

caird coinheringaahing

@Mr.Xcoder Come on, don't Leaky it

Mr. Xcoder

@cairdcoinheringaahing I won't (yet)

The fun fact is that Gaia is stack-based and really starts beating Jelly @caird

That's why I started learning it, and It's impressive

caird coinheringaahing

1:49 PM

@Mr.Xcoder I think it's the fact that the 2 most important builtins for that challenge are 2 bytes in Jelly and 1 in other languages :P

Mr. Xcoder

@cairdcoinheringaahing Not necessarily this challenge. Gaia's 1 byte built-ins are extremely carefully chosen.

caird coinheringaahing

@Mr.Xcoder brb, stealing them :P </joke>

Mr. Xcoder

I have 8 bytes in 05ab1e too, so meh: Lʒp≠}g<Õ

caird coinheringaahing

@Mr.Xcoder Alternately ḞCL’Ť

Mr. Xcoder

@cairdcoinheringaahing Nice... Kinda like Gaia I think

caird coinheringaahing

1:57 PM

Ḟ     - Filter keep items that
 C    -  Are composite
  L   - Length
   ’  - Decrement
    Ť - Totient

Mr. Xcoder

@cairdcoinheringaahing Why decrement ಠ__ಠ

1 is not composite.

caird coinheringaahing

@Mr.Xcoder I'm not able to test it, I don't know if it would work :P So ḞCLŤ should work?

Mr. Xcoder

Yes of course.

caird coinheringaahing

\o/ Levant FTW. What about Cthulhu?

Mr. Xcoder

I think it would be ~6 bytes

Erik the Outgolfer

2:00 PM

so...languages based off of jelly do better than jelly itself

Mr. Xcoder

The Jelly algorithm.

@EriktheOutgolfer Not Cthulhu ;~;

caird coinheringaahing

@EriktheOutgolfer Stack-based ≠ based off Jelly

Erik the Outgolfer

except that for example gaia has other jelly stuff like line links

(although that's adopted by many languages now including brachylog, husk, ohm, etc.)

Mr. Xcoder

Yeah btw I must solve that in Ohm... I just don't withstand not posting an answer in ohm

BLEH it's 7 bytes

@cairdcoinheringaahing Wanna get other old challenges and attempt them in Jelly?

caird coinheringaahing

@Mr.Xcoder Sure, but what tag?

Mr. Xcoder

2:07 PM

Numbers, those are its strength after all.

caird coinheringaahing

How about this? It has easily exploited bonuses :P

Mr. Xcoder

Um, let me read it

@cairdcoinheringaahing Sure, let's do it

@cairdcoinheringaahing Do you have anything so far?

caird coinheringaahing

@Mr.Xcoder Nope :P On my third approach

Mr. Xcoder

(nor do I)

That check for triangularity should be very easy though.... We are very dumb

caird coinheringaahing

\o/ 15 bytes

Mr. Xcoder

2:22 PM

I think I have less

brb

@cairdcoinheringaahing I guess you do use ×8‘Æ² right?

caird coinheringaahing

@Mr.Xcoder Yeah

Mr. Xcoder

@cairdcoinheringaahing 12 bytes here.

caird coinheringaahing

@Mr.Xcoder Do you use #?

Mr. Xcoder

Of course.

Oh no sorry @cairdcoinheringaahing. I generated the first n whoops.

@cairdcoinheringaahing Make that 13 bytes.

caird coinheringaahing

For the record, mine is:

Æ²a×8‘Æ²$$
0Ç#Ṫ

Mr. Xcoder

2:27 PM

Can I post mine here so that we can search for improvements?

caird coinheringaahing

@Mr.Xcoder Mine is 2 bytes longer :P

Mr. Xcoder

Yours is nearly identical, I just have a trick

Ik

caird coinheringaahing

@Mr.Xcoder is it the ×8‘Æ²$$ part?

Mr. Xcoder

Of course

In fact the whole helper link.

caird coinheringaahing

I can't think of a shorter way to check for triangularity

Mr. Xcoder

2:29 PM

×8‘,µÆ²Ạ
0Ç#Ṫ

@cairdcoinheringaahing Mine is ^

caird coinheringaahing

@Mr.Xcoder That's clever

Mr. Xcoder

Ok, so let's do something: @cairdcoinheringaahing The one who gets the shorter solution posts. If the solutions are tied, then CW. How about this?

caird coinheringaahing

@Mr.Xcoder Sounds fair :P

Mr. Xcoder

And we do this for all the challenges we solve unless the solutions are dependent of each other

caird coinheringaahing

Although no Leakying. Once the Jelly answer goes up, we move to a different challenge

@Mr.Xcoder Agree

Mr. Xcoder

2:31 PM

@cairdcoinheringaahing Like, if I get 5 bytes based off your very clever 6-byter, you post it.

@cairdcoinheringaahing Agreed.

Ok, so I'll post now.

caird coinheringaahing

Yeah, sounds fairest. Also, given that we don't have to rush, explain answers as much as possible?

Mr. Xcoder

@cairdcoinheringaahing Sure.

And we always mention each other nonetheless.

caird coinheringaahing

@Mr.Xcoder Yep. Even if we didn't get the shortest one, we still helped :P

Mr. Xcoder

Sure.

Ok, I'll finish the explanation and move on to another one. Can you please look for another challenge in the meanwhile (no rush)?

caird coinheringaahing

@Mr.Xcoder Sure. I'm looking for a question with no Jelly answers :P

I've found one! Any thoughts on this?

Mr. Xcoder

2:38 PM

brb, finishing up EDIT: Done

@cairdcoinheringaahing Looks interesting, let me take a closer look.

@cairdcoinheringaahing Quite hard.

It's doable though. Any starting thoughts?

caird coinheringaahing

@Mr.Xcoder Check if a number has a 1 after the 2 :P

Mr. Xcoder

Oh that's it?

ಠ_ಠ Mr. Xcoder - I should read more carefully.

@cairdcoinheringaahing Anything so far?

caird coinheringaahing

@Mr.Xcoder Yeah, I've got 23 bytes and counting :P

Mr. Xcoder

Me too

Mine was invalid...

caird coinheringaahing

ಠ_ಠ I picked the wrong challenge, clearly :P

Mr. Xcoder

2:52 PM

Not necessarily :P

I have a very way way to generate

[1, 2, 10, 11, 12, 20, 21, 22, 100, 101, 102, 110, 111, 112, 120, 121, 122, 200, 201, 202, 210, 211, 212, 220, 221, 222, 1000, 1001, 1002, 1010, 1011, 1012, 1020...]

...

But not sure how to deal with 22 and 21 and such cases

@cairdcoinheringaahing status-update?

caird coinheringaahing

@Mr.Xcoder Coping this D:D

Mr. Xcoder

Oh ok, I am trying a sum of digits <= digit count technique

caird coinheringaahing

\o/ 23 bytes!!!!

Mr. Xcoder

nice

caird coinheringaahing

3:07 PM

ಠ_ಠ I need Dennis to commit a PR to save a byte

18 bytes

17 bytes

Mr. Xcoder

Can I see it? My approach seems a bit flawed

caird coinheringaahing

Hold on, testing it with all test cases

Never mind, didn't work

Mr. Xcoder

Aww :-(

@caird Mind if we pick another slightly easier challenge for now? I think I'll have to go for about ~1hour soon

caird coinheringaahing

@Mr.Xcoder Yeah, sounds better than continuing this torture :P

Mr. Xcoder

Great

I can't find any challenge ._.

caird coinheringaahing

3:15 PM

How about an easy one?

Mr. Xcoder

~~Sure, will be quite easy~~ :P

@cairdcoinheringaahing 7 bytes.

caird coinheringaahing

@Mr.Xcoder Working on it :(

Mr. Xcoder

A 7-byter and a 8-byter

caird coinheringaahing

11 bytes

Working on golfing

10 bytes

Mine is ḲċÐ€Øc$€S€. Any tips? @Mr.Xcoder

Mr. Xcoder

ċÐ€ and c$€S€ are different

I use some kind of intersection, if that rings your bell.

caird coinheringaahing

3:24 PM

7 bytes: Ḳf€ØcL€

Mr. Xcoder

Good!

caird coinheringaahing

@Mr.Xcoder Was that yours?

Mr. Xcoder

yes.

caird coinheringaahing

You get to post it then

Mr. Xcoder

@cairdcoinheringaahing Go ahead and post it.

caird coinheringaahing

3:25 PM

@Mr.Xcoder Why me?

Mr. Xcoder

Because I want you to. No community wiki.

caird coinheringaahing

@Mr.Xcoder Also, aside from the [] our TIO's are identical :P

Mr. Xcoder

Nice :)

caird coinheringaahing

@Mr.Xcoder Thanks (not really sure why though)

@Mr.Xcoder I'll make sure to credit you though

Mr. Xcoder

@cairdcoinheringaahing Because I have posted the previous one and really you have came up with it nearly independently. Just a very tiny hint doesn't matter much.

@cairdcoinheringaahing And I have to go anyway, you have more time to explain it. Nice training session. I'll be back in about ~1 hour or 1 hour and a half. Do you think you'll be around then?

caird coinheringaahing

3:29 PM

@Mr.Xcoder Yeah, I should be. That reminds me, I have homework to do ಠ_ಠ

Mr. Xcoder

@cairdcoinheringaahing Me too. That's why I have to go. 2 tests, and a very long Romanian Literature HW. o/ sya

I'll ping when I'm back

caird coinheringaahing

o/ For now

Mr. Xcoder

4:25 PM

@cairdcoinheringaahing can you please send a link to the answer?

caird coinheringaahing

@Mr.Xcoder Here you go

Mr. Xcoder

@cairdcoinheringaahing thanks,

caird coinheringaahing

Hey look, a +10 just randomly showed up in my achievements ;P

Mr. Xcoder

Wonder why? looks around

Now I should finish my homework if you don't mind :P

caird coinheringaahing

@Mr.Xcoder Hmm, same here :P

Mr. Xcoder

4:29 PM

@cairdcoinheringaahing i have already written 3 whole pages, my fingers hurt

caird coinheringaahing

@Mr.Xcoder Ooh, that's nasty. Literature homework tends to be the worst IMO

Mr. Xcoder

I concur.

And after Romanian Literature I have German literature to do... Yupeee

</sarcasm>

Mr. Xcoder

5:18 PM

@cairdcoinheringaahing I am done with the homework. Are u here too?

caird coinheringaahing

@Mr.Xcoder Yep,

Mr. Xcoder

Nice :-)

caird coinheringaahing

I got kinda annoyed when I saw that this was language specific

Mr. Xcoder

Hehe :-) Anyway, I am looking for challenges too.

Wait, does my answer qualify for the bonuses?

caird coinheringaahing

@Mr.Xcoder Yep as it can reach them theoretically

Mr. Xcoder

5:23 PM

Yupee, 5 byts then

Are you looking at the "[code-golf] [number] sort by: votes" too?

caird coinheringaahing

There is this but the shortest CJam answer is 377 bytes, so it may not be possible for the both of us :P

Mr. Xcoder

@cairdcoinheringaahing That's a bit too much

caird coinheringaahing

@Mr.Xcoder I'm checking number theory

Mr. Xcoder

:P

caird coinheringaahing

Got one that looks fun: codegolf.stackexchange.com/q/36384/66833

Mr. Xcoder

5:27 PM

brb

ok, reading it

@cairdcoinheringaahing It already has a Jelly answer at 7 bytes

caird coinheringaahing

@Mr.Xcoder Link?

Never mind, found it

Mr. Xcoder

@cairdcoinheringaahing Here.

We can still try it though.

caird coinheringaahing

@Mr.Xcoder Well, its the exact same as my current solution :P

Mr. Xcoder

I am solving it too rn

I won't even look at it first.

8 bytes

7 bytes now.

rÆfṪ$ÐṂ

@caird How about array-manipulation?

caird coinheringaahing

@Mr.Xcoder s/Ṫ/Ṁ For mine

@Mr.Xcoder Yeah, I'm running out of number theory ones :P

@Mr.Xcoder I'm also looking at posts from 2015 or earlier, as later ones tend to have Jelly answers

Nice easy one

Mr. Xcoder

5:38 PM

Another easy one

@cairdcoinheringaahing Note: If your language contains a built-in for this, then you must NOT use it.

caird coinheringaahing

@Mr.Xcoder Yep, that's why I chose it :P

Mr. Xcoder

What about the one I chose?

caird coinheringaahing

@Mr.Xcoder Reading it now

@Mr.Xcoder I think we should do yours

Mr. Xcoder

ok, it's definitely not trivial, nor too hard

@cairdcoinheringaahing I have 3 bytes.

caird coinheringaahing

@Mr.Xcoder 3 bytes

Mr. Xcoder

5:43 PM

SƤ¡

?

caird coinheringaahing

+\¡

Mr. Xcoder

Oh ok. Can I post as a CW and mention both methods?

caird coinheringaahing

@Mr.Xcoder Yeah, sure thing

Mr. Xcoder

Wait, why can't I make it a CW?

NVM

@cairdcoinheringaahing Posted.

caird coinheringaahing

@Mr.Xcoder Nice

Mr. Xcoder

5:49 PM

Now yours or another one ?

caird coinheringaahing

@Mr.Xcoder I think mine. I've had a go, and the introduction of strings makes it annoyingly difficult :P

5 bytes here

Mr. Xcoder

working...

I have [20, 'H', 'i', 'H', 'i', 20] :-/

caird coinheringaahing

@Mr.Xcoder Yeah, I think that's acceptable, given that's how Jelly treats strings

Mr. Xcoder

IDK I don't think so.

ẎÐL?

caird coinheringaahing

@Mr.Xcoder Ẏ is a builtin that does it IMO

Mr. Xcoder

5:55 PM

@cairdcoinheringaahing Well the Pyth approach uses s with is the exact equivalent of Ẏ in jelly if it operates on lists.

caird coinheringaahing

Actually, no, its not a "Flatten list" builtin

So I think that's the shortest

Mr. Xcoder

It's just flatten by one level :)

Anyway I am definitely not posting this

caird coinheringaahing

FWIW, mine was ;/ŒḊ¡

Mr. Xcoder

... or ẎŒḊ¡

or ;/ÐL

caird coinheringaahing

@Mr.Xcoder Yep, missed those :P

Mr. Xcoder

5:59 PM

I like this challenge but it has a Jelly answer. Let's try it though

caird coinheringaahing

@Mr.Xcoder Should be fun. @caird don't look at the Jelly answer

Mr. Xcoder

@cairdcoinheringaahing 3 bytes here.

huh have I beaten ais?

caird coinheringaahing

ಠ_ಠ 8 bytes

No hints please :P

Mr. Xcoder

ಠ_ಠ

After I solved it, I looked at the answer and I literally just removed a character.

so i won't post mine nevertheless.

Oh no mine is wrong, 4 bytes.

caird coinheringaahing

Does yours use Q?

Mr. Xcoder

6:07 PM

yes.

@cairdcoinheringaahing You should update your Github profile on SE BTW

Now mine is identical to the existing one :-////

caird coinheringaahing

@Mr.Xcoder Done

Mr. Xcoder

@cairdcoinheringaahing Then there's this one.

caird coinheringaahing

ಠ_ಠ 4 bytes

Mr. Xcoder

Good.

mine too

caird coinheringaahing

Hang on for a bit, I'm getting food

Mr. Xcoder

6:12 PM

sure

me too

Jelly does not have standard deviation ffs

And then this challenge

Nevermind I dislike the challenges I linked to.

I got some food too, warn me when you're back

caird coinheringaahing

6:35 PM

Bacon cooked, at a computer :P

Are we doing the questions you linked?

Mr. Xcoder

I explain some Jelly to Adam, hold on.

@cairdcoinheringaahing Nope.

(will take a bit of time)

caird coinheringaahing

How about this when you get back?

Mr. Xcoder

@cairdcoinheringaahing Will take a look.

caird coinheringaahing

@cairdcoinheringaahing -1, has a Jelly answer

@Mr.Xcoder Any thoughts?

Mr. Xcoder

6:53 PM

yeah, i'll take a look in ~2 mins

caird coinheringaahing

@cairdcoinheringaahing Hahaha, 2 bytes

Nope, that's wrong

Mr. Xcoder

@caird I now begun solving it. Sorry for the delay!

caird coinheringaahing

@Mr.Xcoder Nah, no problem :P

@cairdcoinheringaahing 8 bytes

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