The Nineteenth Byte

user202729

12:33 AM

@ASCII-only 'know' found 317 result, more than 'thing'.

CMC Find the word found in most messages by WW. (use the search above) (because SE tries to be smart or use builtin search of sth and filter out common words, "the" doesn't work)

ASCII-only

@user202729 chat.stackexchange.com/…

Dehodson

@ASCII-only "have", 615

ASCII-only

@Dehodson O_o

Dehodson

@user202729 "you", 1081

@user202729 "I", 2954

ASCII-only

@Dehodson O_o

Dehodson

12:49 AM

@ASCII-only :P

ASCII-only

@Dehodson that's 38.44% of his total posts in TNB

user202729

Why isn't that filtered ...

ASCII-only

@user202729 because it's usually not a common word in chat?

ASCII-only

1:38 AM

@Cowsquack found the 56-byte JS fizzbuzz. it's on PPCG lol

user202729

2:06 AM

... I realize that the shortest way (afaik) to implement the merge step in (for this challenge) involves sorting by tail, but the question banned using builtin sorting.

(my jelly solution for merging)

Banning built-in, although the intention is good, does some harm.

Saying "you must not use builtins that make the problem trivial" ... then different people will have different opinions whether a solution is trivial.

ASCII-only

2:35 AM

@user202729 @Dehodson link

(note: query was stolen from elsewhere so don't ask me how it works)

user202729

I don't know sql anyway.

Dehodson

@ASCII-only Wow, I'm amazed I managed to find the top one :P

user202729

What's on the 2101 line ...

ASCII-only

and that the top one isn't filtered :P

user202729

All words in row 2~9 are filtered.

ASCII-only

2:39 AM

@user202729 I'm guessing empty string? so accidental (or intentional) double-spaces maybe?

user202729

<a is obviously HTML link...

The next unfiltered words are "you" and "have".

ASCII-only

which Dehodson also found :P

@user202729 yeah. there are a couple of link things there

user202729

The next ones are 1 and 0.

ASCII-only

@user202729 :P (not really)

user202729

"{@}DJMcMayhem" is the only ping that get in there.

ASCII-only

2:46 AM

@user202729 because of Brain-Flak :P

user202729

3:06 AM

@HatWizard Seriously, I think the image here is flipped or something.

Try it online!

Or... how do the arrows work?

ASCII-only

@user202729 line them up. that's it

user202729

> the ip will jump to an edge with the matching color, and will maintain its position relative to the arrow

ASCII-only

yeah.

user202729

But something is definitely wrong.

Look at the 201 example above.

According to the image it should print 2, not 1.

ASCII-only

@user202729 yeah. hang on

Hat Wizard

3:16 AM

@user202729 Yeah I think you are right. There is something wrong. I'll fix it when I get the chance

thanks

ASCII-only

@HatWizard :| i swear i said that last year. maybe i was just hallucinating it (i can't find it at all anymore)

Hat Wizard

If I don't fix it by tomorrow feel free to ping me

@ASCII-only I vaguely remember starting to fix it, but maybe that is a false memory.

ASCII-only

:O it's a conspiracy. Earth must have been destroyed and then rebuilt (sector ZZ plural Z alpha is annoying)

was there ever a Klein chatroom?

user202729

(indeed, can't find)

Hat Wizard

@ASCII-only Don't think so

Not a lot of people use Klein, even myself.

New Main Posts

3:29 AM

0

Q: Feliz navidad, prospero año y felicidad

So christmas is comming and carols are on the radio all day. Jose Feliciano's Feliz Navidad song is a good example of this. Your task is to print the entire (and repetitive) song. Lyrics: Feliz navidad Feliz navidad Feliz navidad, prospero año y felicidad Feliz navidad Feliz navidad Feliz navi...

user202729

Wow...

(hey, why does it give less occurences than "I")

ASCII-only

@user202729 because there are fewer oneboxes than messages with "I"...

DJMcMayhem

> So christmas is comming and carols are on the radio all day.

Uhmmmm...

It's May

Hat Wizard

The original sandbox was posted in december of 17

ASCII-only

3:49 AM

:O Charcoal gets 333 bytes for the rickroll challenge (well it would if it didn't have to be in UTF-8 :|) (also, it uses a builtin compression algorithm)
https://tio.run/##7ZTPTsMwDMZfxdplmwQPMQlp2gW4IaRe0sZtwlJ7yp9VffriZBtsQ9zgMMGtymd/@dlf28Yo37By0/TsLcXF7AXnHoEYQvSKOvQBIoPjPVb0ygm2xANEg@CTwwCKNAQGzbCpaAVtcg4a7nsbe6Q4DzAYFWEz76XH0tZSB9wenAZOTtM8QocxqwFaz704jsBygYcujRVt4C2FCIMiUhBR7EfpNQKRTVtEJ54VrTlGBb3aYtETaSGPQldRRY@4z3acLTq7P5bsLgUnFPlc83DV4hOB8iyeZVyNAX2pvSz7uLzx46US1ChPrOsRL4Uyj1xtsTibdPKtSHIQ0LxtAlSNOe6kZZ/37TgPLVv0YFD5vOgaUTAbk1dcp1jUHGVkydKMOcXMYUXZULAaYUCoxfUQac7p5NJxyalQfAbeqf6AO…

Downgoat

@ASCII-only :| Charcaol string is compress by default?

ASCII-only

4:48 AM

@Downgoat yeah

user202729

5:37 AM

@Hat Well I'm not supposed to search the sandbox...

Hat Wizard

huh?

ASCII-only

@user202729 what.

user202729

6:00 AM

@HatWizard In reply to this...

OP deleted the post and the account.

Hat Wizard

I gathered that, I just don't understand what you are saying.

ASCII-only

@user202729 You're supposed to if you want to complain...

user202729

6:21 AM

Re this comment: What is "the problem pointed out in the sandbox" Peter Taylor mentioned? (it's hard to search deleted sandbox posts)

Emigna

@user202729 I think it's this sandbox post

ASCII-only

-5

A: Sandbox for Proposed Challenges

Merge two code in two languages into a polyglot. E.g. If you choose C & Python 3, you can merge main(){puts("a");} and print(6) into #define print(x) main(){puts("a");} print(6) popularity-contest (for it's hard to have a score on language difficulty, optimizy, etc.)

just sort by oldest -> go to the end

it's not even deleted yet...

user202729

6:39 AM

What does space do in Klein? @HatWizard

It just appear to loop forever...

ASCII-only

@user202729 nothing (no-op). so it loops forever

user202729

This terminates.

I dont think this does.

So spaces are different from ..

ASCII-only

7:26 AM

@user202729 yeah. Klein strips the input so any leading whitespace is removed. you should ping Hat Wizard if you think this behavior should be changed

user202729

Leading spaces are stripped, but not whitespaces inside the line?

That's inconsistent.

ASCII-only

@user202729 well that's what strip does

and that's probably an unintentional side effect?

@user202729 only leading/ending for the entire program

@user202729 blame this commit

Neil

8:15 AM

@ASCII-only surely a single literal isn't going to be a competitive Charcoal answer

ASCII-only

@Neil hmm. that's true (1. the literal way is invalid anyway, 2. with the scoring method, compressed literals are actually basically more expensive than plain ones)

user202729

8:43 AM

CMC; Given a graph, find any cycle within it. Loops are ok.

Leaky Nun

@user202729 what's the difference?

user202729

@LeakyNun Just in case someone asks.

ASCII-only

@user202729 is cycle != loop?

user202729

@ASCII-only A loop is the edge in a cycle with length 1.

ASCII-only

ah

@user202729 just the edge?

user202729

8:47 AM

en.wikipedia.org/wiki/Loop_(graph_theory) .

huge onebox

Seems to be harder than I thought.

CMC: Given a directed graph where all vertex out degree is 1, find any cycle.

Adám

@user202729 Is the result a boolean if there are any loops?

user202729

> find any cycle.

Adám

@user202729 Do we need to somehow display what the loop consists of or just to determine if there are any loops?

user202729

Yes, print the cycle.

Adám

@user202729 Too bad, I had a 14-byte solution to determine if there are any loops, but not what they are.

@user202729 And if there are none?

Adám

9:11 AM

@user202729 Doesn't that mean that the graph is either a line or a single cycle/loop (optionally with a tail)?

ASCII-only

@Adám or that with extra nodes leading into the cycle

so i'm guessing you could just use brent's to do this

Adám

@ASCII-only Ah right, with zero or more tails.

ASCII-only

oh, so those are tails. TIL

this is beginning to sound like knitting terminology lol

user202729

@Adám Or multiple connected components of that.

Adám

@ASCII-only I don't know if they are called that, just something I made up. Valid inputs: U O Q A K…

user202729

9:16 AM

If cycle detection algo is used that should not matter anyway.

ASCII-only

@user202729 but there can only be one cycle though?

user202729

@ASCII-only Each connected components can have at most 1 cycle.

They have a name...

"functional graph".

ASCII-only

@user202729 ah, I see

@user202729 *multiple of that

@Adám hmm. apparently tail just means the back of the arrow

Adám

@user202729 What if there are no cycles? Or will there always be at least one?

ASCII-only

~~output []~~

user202729

9:27 AM

For the latter CMC... whenever the graph is not empty, there will be at least one.

So assume the graph is not empty.

Adám

@user202729 APL (Dyalog Unicode), 34 bytes {0::2⊃' '(≠⊆⊢)⎕DMX.Message⋄⎕JSON⍵} output format is e.g. B.C.D meaning B-C-D-B

user202729

(obviously I have no idea why is there a DMX.Message and JSON inside)

ASCII-only

@user202729 I'm guessing it's got some kind of builtin JSON cycle detection maybe?

Adám

@user202729 This is code golf so all trickery is presumed allowed unless loopholey or explicitly forbidden. It simply tries to convert the graph to JSON ⎕JSON⍵, but JSON cannot represent cycles/loops, so it fails. The error is trapped 0:: and the Message part of the Diagnostic Message eXtended is chopped into words ' '(≠⊆⊢) to find the part giving the offending loop/cycle 2⊃.

user202729

Interesting method.

Adám

9:36 AM

@user202729 :-) In other words, the interpreter can find such loops, but does not provide an easy way to use it.

ASCII-only

:| JS has the cycle detection as well but no relevant info in the error object

~~clearly APL has an inferior object printing syntax~~

Neil

9:58 AM

if you use an early enough version of Firefox then its uneval will use sharp notation to indicate cycles

caird coinheringaahing

10:58 AM

For people who have created a language that has been used on PPCG: CMC: Create a language using the language you built. The new language must not already exist, but trivial modifications of, i.e. BrainFuck, are perfectly fine, although boring. Try to create an interesting language. For example, I created Adapt using my other language Add++ (but it isn't really 'interesting')

3

ASCII-only

@cairdcoinheringaahing Conor has already done that

@cairdcoinheringaahing also hmm. i'll get back to you in a few months (hopefully. if i don't end up abandoning it)

dzaima

@cairdcoinheringaahing now I want to make a normal looking ± readable version of Canvas so that could be easily done

ASCII-only

@dzaima :| you didn't already have that? disappointing

caird coinheringaahing

@cairdcoinheringaahing You don't have to have created the existing language, but it does have to be more esoteric than not (i.e. Jelly, rather than J)

ASCII-only

@cairdcoinheringaahing :|

how is J not esoteric

dzaima

11:04 AM

@ASCII-only compiling to a stack-based language isn't simple, unlike a prefix one you've got

caird coinheringaahing

@ASCII-only It's used as production code

ASCII-only

@cairdcoinheringaahing ~~use eval~~

Adám

@ASCII-only It is basically rationalised mathematics transcribed to ASCII noise.

ASCII-only

@dzaima hmm. well I guess Charcoal verbose isn't actually readable. it's literally just a translation of the golfy code plus parens

@cairdcoinheringaahing @Adám doesn't mean it can't be considered esoteric :P

dzaima

@ASCII-only yeah I noticed. Was fun when the code still worked with all parentheses removed :p

Adám

11:05 AM

@ASCII-only Is mathematical notation esoteric?

ASCII-only

@dzaima it didn't originally work like that actually. i just added it because i felt like it >_> (it's almost certainly a bad idea)

@Adám well tbh I'd say quite a bit of it is. it has a lot of functions with symbols you'd need to be familiar with to understand, and basically all variable names are obfuscated :P

Adám

@ASCII-only With that view, then yes, J is esoteric.

dzaima

@ASCII-only APL (I don't know J but I've heard it's pretty similar) is a more sanitized math notation so it should improve on some of your points

ASCII-only

@dzaima I'm talking about math notation here

(I don't actually think J is esoteric. But for this CMC I'd say it can definitely be considered one - it's not like it's particularly easy to create a language in J)

@dzaima IIRC J is like APL, except with ASCII?

Adám

@ASCII-only I haven't tried, but it is pretty easy in APL.

user202729

11:11 AM

(nevermind)

ASCII-only

@Adám Hmm. I guess with OOP support then yeah it would be pretty easy

user202729

@ASCII-only I often write J with long variable names.

Adám

@ASCII-only Similar, but J has a strong focus on tacit programming (hence Jelly…) while (Dyalog) APL allows all kinds of styles.

user202729

(and I find code with very short variable name hard to read, regardless of language)

(although sometimes I name variables in my code node and confuse myself. Obviously the_node is not better)

Adám

@ASCII-only Non-APLs have a lot of functions with English (!) words or abbreviations you'd need to be familiar with to understand, and if the programmer uses single-letter variable names…

user202729

11:14 AM

@ASCII-only ... ... but some of them are easy to understand. (example <, ,)

ASCII-only

@user202729 some

user202729

@ASCII-only Yes, what do you expect... Haskell nub is not exactly easy to understand either.

ASCII-only

@Adám clearly that's just the language being disappointing

Adám

@user202729 I have a really hard time with J's bi-glyphs and tri-glyphs.

user202729

(is only &.: and p.. triglyhps?)

ASCII-only

11:16 AM

@user202729 but it's not like anyone is expected to use them

user202729

@ASCII-only ... what if you need it ...

Adám

@user202729 {:: as well. But the overloading of . is just bonkers. E.g. +/.* is not the same as +/ .* and 2+.5 is not the same as 2+0.5, etc.

user202729

(that probably encourages using spaces)

ASCII-only

write your own?

O(n^2) is pretty bad. you can do better a lot of the time

or you can just alias the function

Adám

There has even been experiments with fonts where . and : were offset to the left to increase readability, and then we're almost back to APL's overstrikes.

ASCII-only

11:19 AM

@Adám they should just use ligatures :P

Adám

@ASCII-only Well, the fact that people like ligatures (and some programming fonts will glue together adjacent characters that make up a single "symbol") shows how valuable well-chosen glyphs really are.

user202729

(and I have some difficulty splitting the atoms mentally, so I end up using spaces as well)

Adám

@user202729 +1 No such problem in APL.

ASCII-only

@Adám e.g. Fira Code

user202729

(is APL executed left to right or right to left?)

dzaima

11:22 AM

@user202729 right to left, at least usually (IIRC operators go the other way?)

user202729

(no idea why, I don't like writing programs backward)

Adám

@dzaima That's not really precise. Functions are right-associative. Operators are left-associative.

@user202729 foo(goo(moo(x))) goes "right-to-left". Now just remove the parens and get foo goo moo x

dzaima

@user202729 right, I felt that way too but once I started experimenting with a LTR APL I quickly understood how much better RTL is

user202729

actaully it's like that in every languages except Jelly, but C (and its variants) make different functions on differen tlines, so it's mostly LTR.

Cows quack

@Adám this is also how dodos work

user202729

11:24 AM

So I get more used to that.

ASCII-only

Charcoal basically does this too :P

Adám

With functions being right-associative, it becomes natural to have assignments on the left without having to resort to precedence rules, and this allows lining up definitions along the left margin which is much easier to scan and find things in than if every line ended with the assignment (like TI-Basic) at various places.

Compare

months←Q1,Q2,Q3,Q4
yyyy mm←⍵
day←days yyyy mm 1
mms dds←2↑1↓↓⍉date day+¯1+⍳31
fmts←2 0∘⍕¨(mm=mms)/dds
pad←(7|day)↑0↑fmts

with

Q1,Q2,Q3,Q4→months
⍵→yyyy mm
days yyyy mm 1→day
2↑1↓↓⍉date day+¯1+⍳31→mms dds
2 0∘⍕¨(mm=mms)/dds→fmts
(7|day)↑0↑fmts→pad

In the top example, you can right away see which variables are being assigned to, and their names give you an idea about the algorithm. In the bottom example, you'll have to go look for the assignments.

ASCII-only

@Adám wait where are the functions

Adám

@ASCII-only What?

ASCII-only

i can't tell which ones are functions and which are operators >_>

Adám

11:36 AM

@ASCII-only ← is assignment, () are parens, ∘ and ¨ are operators. All other symbols are functions.

user202729

@Adám Right associative is not right-to-left.

(by right-to-left I meant prefix)

@ASCII-only What is ligature in this context

Adám

ASCII-only

@user202729 multiple chars being represented by a single glyph

@Adám they have a better image on their github :P

FrownyFrog

you probably already have seen ligatures

fi is easy to spot

New Main Posts

1

Q: Maximize Weight of sticks in a fixed rectangular area

Suppose N sticks are placed on x-axis from [0, R] (not necessarily integer positions) and parallel to the y-axis. Each stick have a weight of W[i] and height H[i], where i ∈ [1,N]. Given a fixed rectangular area, Find the position, length and width of the rectangular region such that the sum of t...

fastest-code fastest-algorithm algorithm

FrownyFrog

11:48 AM

the dot disappears

dzaima

@dzaima yep can't think of a way to make stack-ish code easily representable in a nice format without it not being golfy unless I make crazy compiler optimizations.

user202729

@NewMainPosts OP doesn't respond.

@NewMainPosts Why unclear :/

@NewMainPosts "prevent misuse of winning criteria tags" is actually a strong argument.

@NewMainPosts And yes, linear time is possible.

@StewieGriffin Linear time is not very hard. Not sure if fastest algorithm is a good idea.

ASCII-only

12:12 PM

@dzaima well actually it's not representable at all in conventional format

@dzaima you might be able to do something like this though

dzaima

@ASCII-only yeah that's the easy & boring version. I almost thought that this would look okay until I realized that that @ - ToS - there is meant to reference the result of the cw() above but there's no way that's displayed.

ASCII-only

@dzaima ?

dzaima

@ASCII-only that's just a mockup of what my idea of a verbose Canvas would look like. Probably never gonna happen

ASCII-only

@dzaima i don't understand. at all. no way what is displayed? what is cw?

dzaima

@ASCII-only cw is turn the object clockwise

ASCII-only

12:22 PM

@dzaima oh. there's a link

dzaima

@ASCII-only ...

ASCII-only

sorry. I have f.lux on pretty high, and it's pretty late

@dzaima of course. but you can just treat @ as a special variable

also, what's #

dzaima

@ASCII-only Also ToS, but for modifying the item instead of modifying a duplicate (i.e. @.length() gets the length of a copy so the original object still exists on the stack)

ASCII-only

what does it actually mean

dzaima

(whereas #.length() would remove the original item)

ASCII-only

12:27 PM

so @ and # are just peek and pop respectively

dzaima

@ASCII-only well # has the effect of pushing the result of whatever's acted upon it, but yeah

ASCII-only

@dzaima hmm. so length can't exist by itself?

dzaima

@ASCII-only that's also an option but feels to stacky.

ASCII-only

@dzaima no i'm asking what happens in Canvase if you just use the length symbol by itself

@.length?

do you just do dup length to make it #.length?

dzaima

@ASCII-only well Canvas actually has both #.length and @.length (though #.length is @.width for Canvas objects but that's another topic) but yeah, that's how it'd work on regular functions that don't have a @.f counterpart

ASCII-only

12:33 PM

@dzaima hmm. so length would need specialcase to make it fully golfy? (not related but just curious)

dzaima

@ASCII-only there would have to be many special cases, yes

ASCII-only

right.

is there a way to get the item at the nth position from the top of the stack

dzaima

@ASCII-only There should be a built-in for that but there isn't :p

ASCII-only

@dzaima what about stack rotation (might be called rolling?)

dzaima

@ASCII-only there are some commands for specific rotations & nth positions, but not universal (so multibyte (= bad)) ones

ASCII-only

12:37 PM

hmm. so that's how you access other variables?

dzaima

@ASCII-only there aren't usually more than 3 actively changing things on the stack (loop counters/iterated items have specific variables) and there also are 2 variables so there is rarely need for deep stack accesses

ASCII-only

hmm. i was thinking i'd prefer a variable-based system but you'd basically need to roll your own refcounting for that

dzaima

hmm the option of a crazy compiler sounds kind of fun (but still very very crazy) as then something like this would work (but optimizing that to its golfiest form would be horrifying) (oh ^)

ASCII-only

@dzaima how would it be horrifying

@dzaima 1. shouldn't it be this 2. why would there need to be i =

dzaima

@ASCII-only 1. depends on whether Canvas objects are called mutable (in the JS they are (bad decision :/), in Canvas you pretty much always see it as immutable); 2. oh right I meant to replace repeat with for (well, removing i = would work too)

ASCII-only

12:47 PM

@dzaima yeah. imo removing the variable would remove the useless variable (i.e. remove one variable) meaning it easier to optimize

dzaima

@ASCII-only (alternate answer to 2.: because the variable is always available to use)

ASCII-only

@dzaima hmm. is it always on the stack

dzaima

@ASCII-only detecting that a variable is used nowhere is probably the easiest optimizing thing to do

ASCII-only

that's true

(actually not really)

there isn't really one specific hard part of the optimizing

they all seem moderately complex

dzaima

@ASCII-only sometimes - with ｛ yes, with ［ no, and it's always there accessible in some superscript read-only variable

@ASCII-only noticing that i is used only once in the program is easy. Deciding in what order to do the instructions and what loop structures to use - not easy.

ASCII-only

12:51 PM

@dzaima isn't the instruction order just start to finish >_>

dzaima

@ASCII-only you'd have to order the instructions so that res.width is called first so it doesn't have to do anything to get the res to act upon. And then what if there'd be multiple requests on res in that expression? Store res in an actual variable or fiddle with the stack?

ASCII-only

@dzaima yeah that'd be the responsibility of the programmer to make the decisions wouldn't it

dzaima

@ASCII-only if the programmer still has to tell the program in what order it should work it pretty much makes that no different from Stacked

ASCII-only

@dzaima no i mean the "Store res in an actual variable or fiddle with the stack?"

if the program golfs all variable access for you then it's basically a partial bruteforcer

dzaima

@ASCII-only so that's what has to be made. Getting stack/variable management right is hard by a human

ASCII-only

1:01 PM

@dzaima ... people have to do that in any language

dzaima

@ASCII-only not to the extent as in just stack-based languages

ASCII-only

@dzaima true. but if you're going to do that then I'd prefer if you just create a universal stack-based language golfer

dzaima

@ASCII-only and it's not really possible to make a language that looks like what I showed without automatic stack management

ASCII-only

@dzaima automatic does not necessarily mean smart though

dzaima

@ASCII-only stack-based languages can vary a lot so that'd be pretty hard

Zacharý

1:03 PM

@ASCII-only Golfscript anyone?

ASCII-only

@Zacharý hmm?

dzaima

@ASCII-only C++ manages to golf its assembly well (of course I wouldn't be able to get anywhere near C++ compiler amazingness but still)

ASCII-only

@dzaima think about how many million person-hours went into optimizing those compilers

Zacharý

I remember something about GolfScript having variables. I'm probably misinterpreting whatever the context is

ASCII-only

of course it has to be fast/golfy. otherwise a significant amount of production programs would be 2x or more slower

@Zacharý yeah. Canvas has variables too, that's not the problem

BMO

1:05 PM

Does anyone know how V regex shortcuts work?

user202729

@Zacharý Yes, IIRC Golfscript have variables.

BMO

The wiki says we can replace [^ with \x84, however this doesn't work for me :(

ASCII-only

@BMO I'm guessing they're just compressed strings?

user202729

@dzaima Probably with -Os.

ASCII-only

and for quite a few of programs 2x is the difference between runnable and breaks your computer/great and unbearably slow

BMO

1:08 PM

@ASCII-only Yes I think so, but just compressing common patterns like said [^

user202729

I never learnt V (although know Vim), but I think I will read the wiki.

ASCII-only

@BMO github.com/DJMcMayhem/V/blob/…

BMO

@ASCII-only Thanks, seems like it only gets expanded for Í and the like :(

mbomb007

1:24 PM

@ASCII-only It always functions. The only time it doesn't work if console isn't open is for IE8 and below.

Mayube

1:55 PM

I return!

DJMcMayhem

2:12 PM

@BMO It seems to be working. I read the command as "delete any line not containing whitespace other than the first"

And :g can be ç, although that won't work with a range. Maybe a visual instead?

I'm not sure what you're trying to do, but I would write jVGÇ /d

Seems to have the same effect

Poke

just started googling "perl online" then remembered tio is a thing. You're a treasure, dennis

5

Mayube

2:27 PM

tio is a godsend, one thing it's missing imo is syntax highlighting for major languages

BMO

@DJMcMayhem Yeah that one does, however replacing [^ with \x86 doesn't: j:,$g/^<\x84> ]*$/d

However visual mode is superior, there's no need to do what I tried doing.. VGÇ /d does exactly what I wanted to achieve :D Thanks a lot!

DJMcMayhem

@BMO That's cause (currently) the expansions only work in regex V commands. I could add that functionality though

Mayube

so have I missed much in the past 6 months? Any cool new languages popped up?

DJMcMayhem

@BMO is the meaning of Ç<space> clear? Also note that the d in that code is a normal command that is implicitly filled in to dd, not the ex command d

BMO

@DJMcMayhem In that case it wasn't, but it is now :D

@DJMcMayhem Most likely there's a reason (there are shorter ways such as visual mode for example) that you didn't bother to implement it

Btw. I was gathering tips for this answer, which you were able to golf 8 bytes ;P

I feel like I should be using À for getting rid of the top n lines and then remove the tail

Zacharý

2:45 PM

@Mayube Some new Jelly atoms

New Sandboxed Posts

0

A: Sandbox for Proposed Challenges

Is this a polyomino? Meta I have also proposed a two-part question "Holey polyomino" below, which I have soured on for now. And because I had misspelled "polyomino" I didn't see the other questions related to polyominoes, of which there are a few already. The related questions come...

FrownyFrog

I’m almost at 8 months

of consecutive visits

BMO

Can you/someone explain À? I don't really understand it..

If I have a number on the first line, I could put it into a register and repeat a macro (q) n times with :norm <C-r>a@q, like this. And weirdly enough (?) this works as well, but I have no idea why

Neil

I passed 2 years over 2 months ago

Mayube

@Zacharý oh sure,t hat's just what we needed :P

FrownyFrog

3:01 PM

730 days of consecutive visits?

Zacharý

Yeah, probably looking for ascii-art. Seriously though, how do you remember to do that for 2 years straight?

user202729

@Zacharý Addiction.

DJMcMayhem

3:18 PM

@BMO À is equivalent to @a

New Main Posts

0

Q: Sum of replicated matrices

Given a list of numbers [ a1 a2 ... an ], compute the sum of all the matrices Aᵢ where Aᵢ is defined as follows (m is the maximum of all aᵢ): 1 2 ⋯ (i-1) i (i+1) ⋯ n +---------------------------- 1 | 0 0 ⋯ 0 aᵢ aᵢ ⋯ aᵢ 2 | 0 0 ⋯ 0 aᵢ aᵢ ⋯ aᵢ ⋮ ⋮⋮ ⋮ ⋮...

code-golf math matrix

BMO

@DJMcMayhem Thanks a lot!

I didn't even know that @a can be used like this -.-

No stupid :norm ..., hah!

DJMcMayhem

I think D@"dd would be shorter than "aDÀdd

BMO

Yep, it is.

That's the great thing about PPCG. It's pretty much the best (and most fun) way to improve in a "language".. Today I learned a lot about vim that I didn't know yesterday :D

New Main Posts

3:35 PM

0

Q: How to select the exact players and positions from the list in correct order?

screenshot of players selection.I'm automating baseball sports reporter application. My application is a desktop application. I'm using winium tool with java language. In my application table contain player names in alphabetical order. I want to select 8 players from the list in same order as y...

java

DJMcMayhem

@BMO 3 things: 1) you have a bunch of useless bytes in your code (right after H) 2) you don't need a newline after ò and 3) :.! --> !!. Those should get you down to 41: tio.run/##K/v/…

BMO

I just noticed that as well, however I got it down to 42..

Mr. Xcoder

4:19 PM

@Mayube Glad to see you’re back! A cool new language is Stax, perhaps. Some major changes to Jelly so now it’s basically a different language (even more golfier).

Oh, and BTW, we started a brand new event called Language of the Month (LotM), go check it out on meta.

mınxomaτ

4:59 PM

Apparently I've just ordered so much coffee from Amazon that they offered to convert my account to a business account ...

11

DJMcMayhem

@cairdcoinheringaahing That's a good CMC.

I'll get back to you :P

Good thing I have two painful to work with langauges

Dehodson

@cairdcoinheringaahing The only language I've made that's ended up in a PPCG answer is TinCan, which doesn't take any input so... I'll have to think quite a bit on how I'm going to do that.