05AB1E - Oasis - 2018-08-21

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Emigna

9:11 AM

@Adnan: There still seem to be some issue with isPrime. I'm pretty sure 11 13*p should return false ;)

As 49p returns false now, I assume that the previous fix is live

Adnan

9:34 AM

@Emigna You are correct

I made a very silly mistake, but it has been fixed now :)

I added a couple more tests to make sure that this bug is now fixed

thanks for spotting :)

Emigna

10:05 AM

Nice!

3 hours later…

Kevin Cruijssen

1:28 PM

@Adnan The dictionary doesn't seem to work anymore. “‚ï“, “‚ï or '‚ï (which should all be "world") gives the same Reading.Dictionary.dictionary error in the new version.

Kevin Cruijssen

2:04 PM

I see the command to print to STDERR has been removed?

@Mr.Xcoder Ah nice. Been thinking about this as well. I sometimes forget about the Extended Commands because they were at a separated tab. ;)

Mr. Xcoder

I've decided to ask permission to do this now since some particularly important commands were added and they must have visibility.

Challenge: Try to imporve this answer using v2. (note: I haven't solved it yet)

5 hours later…

Adnan

6:55 PM

@KevinCruijssen Hmm, it seems that the 05AB1E version on TIO does not have read access to files

I'll try to rewrite this so that it doesn't need to read the file in the next commit

Adnan

7:23 PM

@Mr.Xcoder The straightforward option gives me 10 bytes

Mr. Xcoder

@Adnan I assume that 'straightforward' method didn't work in the legacy, correct?

Adnan

Nope

I used the next prime function which does not exist in the legacy version

Mr. Xcoder

Ok, then I'll try to find that ASAP

So similar to Dennis'?

Adnan

I haven't tried to port Dennis' submission into osabie but I think that should save a byte at least

Mr. Xcoder

Actually I don't think it would. Let me know if you try, but Ð¡ doesn't quite behave the same way in 05ab1e, does it?

Adnan

7:32 PM

Yeah, I'm not familiar with how Ð¡ works in Jelly

so I have no idea

Mr. Xcoder

Accumulating iterate. When acting on a dyadic link d and called with
arguments x and y, the resulting quicklink executes
"x, y = d(x, y), x" n times, returning all intermediate values of x.

Adnan

What's y in this case?

Mr. Xcoder

Initially, x = 0 and  y = n.

Where n is the input.

Adnan

and y does not change after each iteration?

my jelly knowledge is horrible

Mr. Xcoder

y becomes x after each iteration

And x becomes func(x, y)

Does your method use lambda or not?

Adnan

7:36 PM

Yes

Mr. Xcoder

Ok, I'll get to work now

Can I assume p is fixed?

And I'll just run it locally

Adnan

It's fixed but not yet synced

Mr. Xcoder

I am aware of that

Adnan

although that should not be a problem for the first 15 terms

Mr. Xcoder

Um.. True

Adnan

7:45 PM

Also one tip that I should probably document

λ inside a λ-program pushes all previous results

Mr. Xcoder

That's exactly what I needed lol...

Adnan

For example calling λ on a(5) pushes a list of [a(0), a(1), a(2), a(3), a(4)]

An infinite stream

Mr. Xcoder

I know that, had something else in mind, forget about it

Magic Octopus Urn

8:02 PM

Aiight-- I was gone for a few months. Why did everything all change?! (AKA me asking what the difference between 05AB1E (Legacy) and 05AB1E is)

Mr. Xcoder

:) You shoud get used to the new features asap.

Adnan

@MagicOctopusUrn because the code was horrible to maintain

Magic Octopus Urn

@Mr.Xcoder I can't really find the difference between the two except the commands on list.txt... may have changed?

Mr. Xcoder

Many, many things have been added

Magic Octopus Urn

@Adnan oh-- don't take it the wrong way, by all means, just wondering what is different. Probably shouldn't've asked in 1337speak format lol.

Ohhh, I'm looking at a cached page... I'm stupid.

Mr. Xcoder

8:05 PM

@MagicOctopusUrn github.com/Adriandmen/05AB1E/wiki/Commands/_compare/…

Magic Octopus Urn

I SEE THE OBVIOUS DIFFERENCES NOW.

I was like... nothing... nothing changed?

Mr. Xcoder

Glad that you're wrong :)

Magic Octopus Urn

Oooooooo... you added tons of dot commands, neat.

Did the refactor give you a chance to reorganize the commands into a more... linear fashion?

I vaguely remember being told by Emigna at one point that only letters could be used with dot commands for some reason or another.

Adnan

Oh yeah, in case I forget, float literals now also exist: tio.run/##yy9OTMpM/f/fUM9UwVjPyFT7/38A

Magic Octopus Urn

@Adnan ohhh that is sexy.

Adnan

8:11 PM

Or even this: .5 .2+

Magic Octopus Urn

D'awhhh -1 is still a no-go

Mr. Xcoder

Unary - would be difficult because there's binary -

Adnan

yeah, that isn't possible parse-wise

Magic Octopus Urn

Then again multiplying by the uninitialized counter is basically the same.

Adnan

but ( should almost always be able to achieve the same thing

Magic Octopus Urn

8:12 PM

Oh right... -a...

Sigh, I overcomplicate things so often.

Mr. Xcoder

Note to self: Never try to tie Adnan in 05AB1E again while playing PUBG at the same time

Magic Octopus Urn

8:25 PM

My version of that is slightly different. "Note to self: Never try to tie Adnan in 05AB1E."

2 hours later…

Mr. Xcoder

10:32 PM

A: Compute the minimum \$a(n)>a(n-1)\$ such that \$a(1)+a(2)+\dots+a(n)\$ is prime (OEIS A051935)

05AB1E, 10 bytes 2λλOD₁+ÅNα Try it online! This only works in the non-legacy version, the Elixir rewrite. Outputs an infinite stream of integers. There are some bugs with the prime test that have been fixed in the latest commits, but are not yet live on TIO. It does work locally, though. Here...