Jelly Hypertraining

As a little kid, I liked to play with these toys a lot: They probably intended for these to be used for art, but I always used them for math! Fractals, patterns, etc. One time, I was given this challenge: Build a triangle without using any of the green triangle tiles. This challenge stum...

caird coinheringaahing

@Mr.Xcoder Mine is totally different :P

Mr. Xcoder

@DJMcMayhem oh no no no no... I remember that one, it's afwully hard in jelly.

DJMcMayhem

Huh. Why so?

caird coinheringaahing

@DJMcMayhem I'll just copy the CJam answer :P

Mr. Xcoder

It's very hard to alternate those lines and center it.

@caird 7 bytes here.

DJMcMayhem

6:58 PM

OK, I've got an easier one you could do (also with no Jelly answer ATM)

28

Q: Where should I put my mirror?

This is a mirror: |. I just found out that you can stick a mirror in the middle of a string if the string can be mirrored on itself! For example, the string abccba. If you cut it in half the two halves are mirror images of each other: abc <--> cba So, we can stick a mirror in the middle of t...

code-golf string palindrome

I'll join you for this one

caird coinheringaahing

@Mr.Xcoder My 8 byter

Mr. Xcoder

7 bytes with my version, 7 bytes with your method too.

caird coinheringaahing

7 bytes

Mr. Xcoder

7 bytes

(with yours, changed slightly)

And also 7 bytes with mine

@DJMcMayhem Looks fun, I'll try it after we finish this one.

caird coinheringaahing

@DJMcMayhem for this does the output have to be 2 distinct values or can it be any truthy and any falsey value?

If the latter, 6 bytes

DJMcMayhem

7:04 PM

I think the latter

Mr. Xcoder

6 bytes.

caird coinheringaahing

6 bytes then :P

Mr. Xcoder

5 bytes then

caird coinheringaahing

5 bytes

DJMcMayhem

@Mr.Xcoder How can I remove n characters from a string of variable length? (from front or back)

Mr. Xcoder

7:05 PM

No... Actually 6

@DJMcMayhem Example?

@cairdcoinheringaahing Can you please post both as a CW?

DJMcMayhem

"hello" --> <1><dyad> --> "hell" or "ello"

caird coinheringaahing

@Mr.Xcoder What's your byte count?

Mr. Xcoder

Yours.

DJMcMayhem

Or <dyad><1>

Mr. Xcoder

@DJMcMayhem What do you mean by or?

caird coinheringaahing

7:06 PM

@Mr.Xcoder Mine is 5 bytes.

DJMcMayhem

I mean I don't care which

Either one is fine

caird coinheringaahing

@DJMcMayhem Head or tail should work

Mr. Xcoder

@DJMcMayhem Try ḣ

@cairdcoinheringaahing Just post yours then.

DJMcMayhem

But that returns the removed characters, not the original string with the characters removed

caird coinheringaahing

@Mr.Xcoder Should I add yours as alternative?

Mr. Xcoder

7:07 PM

Oh yeah Sorry

@cairdcoinheringaahing Yes.

caird coinheringaahing

@DJMcMayhem ṁ may work (haven't tested)

Mr. Xcoder

I don't think so

caird coinheringaahing

@Mr.Xcoder What is yours? :P

DJMcMayhem

@cairdcoinheringaahing Nope

Mr. Xcoder

@cairdcoinheringaahing Come on just open the links above ಠ_ಠ

caird coinheringaahing

7:08 PM

@Mr.Xcoder You haven't linked to your 6 byter

Mr. Xcoder

Wait, let me find it again.

@DJMcMayhem try ṫ

DJMcMayhem

That works, but I just realized my approach is wrong

Oh vell

Mr. Xcoder

I have some ideas

We are most definitely gonna use ŒḂ

caird coinheringaahing

Aww, are you two starting without me? :(

Mr. Xcoder

You'll catch up pretty fast, you know I am very slow.

caird coinheringaahing

7:15 PM

@Mr.Xcoder Sure </sarcasm> :P

Mr. Xcoder

TIL that a footer consisting of ÇŒṘ helps dramatically...

DJMcMayhem

Spoiler 22 bytes: tio.run/##y0rNyan8///hrrajkx7uaDo8Ie3QVh8gQ@XwhIc75j/…

That feels waaaay too long

Mr. Xcoder

I have 15 bytes.

DJMcMayhem

21

caird coinheringaahing

12 bytes

Mr. Xcoder

7:21 PM

ಠ_ಠ

12|21

caird coinheringaahing

ಠ_ಠ It doesn't handle the "Can't happen" case

Mr. Xcoder

Hold on, I am making a test Suite and then I'll golf mine.

Mine does.

DJMcMayhem

Yeah, mine doesn't either

Mr. Xcoder

Pff...

DJMcMayhem

Mine is horrible, ugh

So how can I shorten ẆŒḂÐfµLḂ$Ðḟ?

Mr. Xcoder

7:25 PM

Now... What? I tested it 2 mins ago and it worked for the empty string.

Now it doesn't

caird coinheringaahing

@Mr.Xcoder That's Jelly for you :P

Mr. Xcoder

Huh?

caird coinheringaahing

@Mr.Xcoder Works one second, then doesn't the next :P Or is that just for me?

Mr. Xcoder

@DJMcMayhem I'll let you think about it more before spoiling.

DJMcMayhem

OK

Mr. Xcoder

7:30 PM

ಠ_ಠ We all must fix our flawed approaches

Also mine is flawed badly for odd-length strings

caird coinheringaahing

19 bytes, works with everything

Mr. Xcoder

@DJMcMayhem BTW that seems pretty optimal now :P

DJMcMayhem

Haha

It seems like it should be shorter as a helper link though, I just don't know how to chain two conditions

caird coinheringaahing

I have 21 bytes using DJ's method

Mr. Xcoder

wait 21 or 19?

caird coinheringaahing

7:36 PM

21 with DJ's, 19 with mine

DJMcMayhem

I have 21 too, do we have the same solution?

Mr. Xcoder

Try sha

caird coinheringaahing

20 now (I'm working on DJ's)

Mr. Xcoder

How do you safely get the lengthiest element?

caird coinheringaahing

@Mr.Xcoder Tail

Mr. Xcoder

7:37 PM

Oh then mine would be ~22

@caird This kind of tail right: ṫ

?

caird coinheringaahing

@Mr.Xcoder No, monadic

@DJMcMayhem what's the MD5 hash of yours? My version of yours is 9135b81f8cad5eae2f042e75a9991d27

Mr. Xcoder

WAIT. If ours all errored for the impossible one, then it would be valid because STDOUT is empty and STDERR doesn't matter right?

caird coinheringaahing

@Mr.Xcoder I think so, but you'd have to ask DJ, it's his challenge :P

Mr. Xcoder

I have 19 bytes BTW

DJMcMayhem

@cairdcoinheringaahing Just a sec, I lost it

Mr. Xcoder

7:39 PM

@cairdcoinheringaahing No, that's default.

caird coinheringaahing

@Mr.Xcoder With erroring?

DJMcMayhem

but if you're <21 bytes, they're not the same

Mr. Xcoder

@cairdcoinheringaahing yes.

caird coinheringaahing

Just out of curiosity, what error are you causing?

Mr. Xcoder

In fact none...

@DJMcMayhem Would it be allowed to output 0 instead of ""?

DJMcMayhem

7:40 PM

@cairdcoinheringaahing 7174461C51FC16CDC13312BE67B8942F, so not the same

Mine doesn't work for edge cases either way though

@Mr.Xcoder If I wrote that challenge today, I'd say absolutely, but with the way it's currently stated, no.

Mr. Xcoder

Danggggg

@cairdcoinheringaahing Can I see your 19-byter please?

(spolier)

caird coinheringaahing

@Mr.Xcoder 19 bytes

DJMcMayhem

@cairdcoinheringaahing Ooooh. You only have one filter instead of two

caird coinheringaahing

@DJMcMayhem Yeah, I use a ternary if for the other one

Mr. Xcoder

It works for all cases but outputs 0 for empty ones...

It would be 18 19 bytes....

DJMcMayhem

7:44 PM

Oh, and j”| is so much better than Ṫ”|;UŒB

Mr. Xcoder

Yeah I do use that too

DJMcMayhem

OK, gtg

Mr. Xcoder

My slightly flawed 19 byter

Bye DJ o/

caird coinheringaahing

ಠ_ಠ Why doesn't this filter

Never mind, I got it

\o/ 17 bytes

Mr. Xcoder

Why in the world does []Ṫ output 0?!?!

caird coinheringaahing

7:48 PM

@Mr.Xcoder From the source code: call = lambda z: iterable(z).pop() if iterable(z) else 0

Mr. Xcoder

ಠ_ಠ Dennis

caird coinheringaahing

I love the fact that removing one µ can cause my whole program to crash :P

Also, \o/ for being able to put comments in the input

Mr. Xcoder

@cairdcoinheringaahing BUFVHLUDSFKUYC,.DBUGFOACKSJ , Now it outputs | for the empty string...

And 17 bytes

caird coinheringaahing

@Mr.Xcoder Yeah, I had that problem

Mr. Xcoder

And how did you handle it?

caird coinheringaahing

7:56 PM

By adding 5 bytes to my program :P

Mr. Xcoder

ಠ_ಠ

Ok gtg now.

caird coinheringaahing

o/

Mr. Xcoder

Mine was spoiler and outputs |

caird coinheringaahing

Careful, Dj may come back

DJMcMayhem

@cairdcoinheringaahing What was that? I just got pinged

:P

caird coinheringaahing

7:59 PM

FWIW, mine was this

Mr. Xcoder

You really have a superping for anything that contains "DJ"?

caird coinheringaahing

Anyone mind if I post ^^?

Mr. Xcoder

Go ahead

DJMcMayhem

No objections

caird coinheringaahing

8:10 PM

o/ y'all (if anyone's still here)

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