The Nineteenth Byte

Counting Up The goal of each answer is to output the integer that is one more than the previous answer's output. For example, if the previous answer's output was 5, your answer's output should be 6. Sounds simple, right? Here's the catch: you must output the next integer N, using at most N byte...

Sherlock9

@Cyoce Back. WHICH ONES?

Anonymous

@Sherlock9 Make ALL the edits!

Sherlock9

7:29 AM

This one?
def m(s):
 l=len(s);r=range(l);p=[[i,s[i]]for i in r]
 for i in r:
  if s[i].isalpha():
   a=p[i][0];m=(a+ord(s[i])%32)%l;p[i][0]=m
   for j in r:
    k=p[j]
    if j!=i:
     if a<=k[0]<=m:k[0]-=1
     elif m<=k[0]<=a:k[0]+=1
 return''.join(dict(p).values())

That's 261! I'm at 260!

Anonymous

@NewSandboxedPosts I probably posted that at a poor time, considering most people are asleep

Cyoce

@Sherlock9 switch to python 2 and use tabs/spaces for indentation. it will make that construction much less costly

Sherlock9

Well, I just made a bunch of edits

There is now less indentation

Cyoce

yay

link (I'm lazy)?

Sherlock9

But it still Python 3

1

A: Letters, Get Moving!

Python 3, 278 275 273 270 260 258 249 248 bytes I should really golf this down better, but here is my solution, with thanks to katenkyo for his help with the logic, and to Cyoce and Mego for their help with the golfing. def m(s): l=len(s);r=range(l);p=[[i,s[i]]for i in r] for i in r: if s[i...

Cyoce

7:44 AM

python 2 is ∞ better for 99% of ppcg

Anonymous

@Cyoce 99% of the time, it works every time

Sherlock9

I don't know Python 2, for the record

Anonymous

@Sherlock9 It's the same as Python 3 but golfier

Cyoce

it's basically the same

except no parens for prints

and 1 tab = 8 spaces

and trivial stuff like optimization

pffff

Sherlock9

How does filter in Python

Hmm

Cyoce

7:46 AM

oh yeah also Python2 has reduce. for python3 you need

from functools import reduce

Anonymous

print and exec are statements. Everything returns lists instead of generators/generator-like objects, except for itertools stuff which is worthless for golf. Tabs are valid indentation. Strings are byte strings (but act like strings and not byte lists). / is integer division if both arguments are ints/longs. int and long aren't the same thing.

FlagAsSpam

vtc-is-salty-ಠ_ಠ

3

A: Alex-style Addition

Vitsy, 12 10 bytes aR)[1+0m]+ aR Get a random number in [0,10) )[ ] If its truncated int is 0, do the stuff in brackets. 1+0m Add 1 to one of the items and execute the 0th index of code. + Add the numbers together. Try it online! Note that this has a tiny chanc...

Anonymous

@FlagAsSpam y so salty

Cyoce

mego-is-a-python-god

Anonymous

@Cyoce Nah that's xnor. I just picked up a few things from him :)

FlagAsSpam

7:48 AM

I'm the second shortest answer now. Because Pyth.

siiiiigh

Cyoce

mego-is-a-python-demigod

Anonymous

@FlagAsSpam Technically 3rd. Seriously is also 2nd, but mine was posted first :P

FlagAsSpam

ಠ_ಠ

Anonymous

:P

Cyoce

only 2 more rep to do review queue

FlagAsSpam

7:50 AM

\o/

Anonymous

@Cyoce For your sake, I hope you never get the rep

Cyoce

it's optional

FlagAsSpam

I didn't just up vote his question what're you talking about >.>

Anonymous

Access to the review queue is more of a punishment than a reward :P

Cyoce

...right?

a last resort for when I'm bored

FlagAsSpam

7:51 AM

It's optional. :P

Anonymous

It's optional but encouraged. Also it nags you if a bunch of reviews pile up.

FlagAsSpam

I don't get review notifications. :D

El'endia Starman

The Every! Body! Gets! A Hat! hat really is the easiest one to get.

Just got it on Travel.SE.

Cyoce

ya dont say...

Anonymous

@FlagAsSpam That's because the queue tends not to build up too much

Anonymous

7:53 AM

I think I've seen a review notification a single time since getting the privilege

FlagAsSpam

^ 4 times.

Also, I've decided that procedural langs make no sense to me.

I prefer the stack.

Anonymous

Yeah me too

Anonymous

I've gotten to the point where my C++ skills have notably decayed

Anonymous

Despite it being my first language

Cyoce

I love forumming

FlagAsSpam

7:55 AM

I program mainly in Java for APCS. shiver

Also, I'm thinking about making a cross-compiler for Vitsy to java.

Cyoce

Java. shiver

FlagAsSpam

I found the Compiler class. :D

Cyoce

\o/

Anonymous

It wouldn't be too hard to make a Python transpiler for Seriously

Anonymous

(given that it's written in Python)

FlagAsSpam

7:56 AM

Exactly.

Anonymous

I'm just too lazy to actually do it

FlagAsSpam

Just replace all the characters with the methods used in the code.

Anonymous

And it won't provide any noticeable speedups

FlagAsSpam

Also means that a 5 byte Vitsy code will turn into a 3k .class file.

But still.

Anonymous

@FlagAsSpam Simple now, but when I add things on my todo list that require more complicated lexing, it'll suck

FlagAsSpam

7:57 AM

i.e. Methods.

Anonymous

What are thooooose?

Cyoce

i.e. ?

Anonymous

Methods don't make sense in a stack lang

El'endia Starman

/me wonders how a Minkolang-to-Python transpiler would work

FlagAsSpam

> method: m
> Go to the line in the source code file as defined by the truncated top item of the stack.

@El'endiaStarman It wouldn't.

Cyoce

7:58 AM

i.e. ?

Anonymous

@FlagAsSpam Works great when newlines aren't operators.

FlagAsSpam

@Mego They aren't. c:

El'endia Starman

List of Latin phrases (I)

This page lists English translations of notable Latin phrases, such as veni vidi vici and et cetera. Some of the phrases are themselves translations of Greek phrases, as Greek rhetoric and literature reached its peak centuries before the rise of ancient Rome. This list covers the letter I. See List of Latin phrases for the main list. == I == == References == Notes Sources...

Anonymous

@FlagAsSpam In Seriously, they are. Or, at least, they will be. Eventually.

El'endia Starman

Second (or third) row of the table.

FlagAsSpam

7:59 AM

@El'endiaStarman You'd have to find a way to make a method out of every list, and then find special movements for F.

Cyoce

exactly

Anonymous

I can't find any way to drop 3 bytes from my 10-byte Seriously answer :(

I cry for you

No, I meant i.e...

did you

8:01 AM

it'll suck: that is, methods.

El'endia Starman

@FlagAsSpam I think it's all the directional stuff that would make it a nightmare. Arrows, mirrors, gosub (f F), wormhole (w W), trampolines, etc...

FlagAsSpam

^

I'm considering removing x, !, | and > from Vitsy.

Cyoce

I thought you were referring to "things to be added"

FlagAsSpam

@Cyoce Oh, no, I was talking about my own lang.

Cyoce

which one is that?

El'endia Starman

8:02 AM

...Vitsy.

Cyoce

I'm sorry everyone is making a language these days...

FlagAsSpam

It's all good. :D

Cyoce

Even I am

El'endia Starman

Yeah, there's definitely a proliferation of languages...

FlagAsSpam

PlatyPar?

Cyoce

8:03 AM

yep

El'endia Starman

Which is cool, I think.

Anonymous

@El'endiaStarman <insert that graph here>

FlagAsSpam

I think that there was a sudden increase 2-3 months ago.

Anonymous

@FlagAsSpam That's when we showed up \o/

FlagAsSpam

Yup.

It's like all of us appeared at once.

Anonymous

8:04 AM

So, blame-us?

FlagAsSpam

#blameus

Anonymous

tbh I don't remember how I found this place

FlagAsSpam

Accident, for me.

El'endia Starman

@FlagAsSpam Yeah, which was weird.

Cyoce

you-are-the-cause-of-the-worlds-problems

FlagAsSpam

8:05 AM

I was trying to get to SO.

@El'endiaStarman And all decided to make funky 2D stack based langs. xD

Anonymous

I think I found a link to here from an SO question

FlagAsSpam

As in the stack was 2D.

El'endia Starman

Me, I had been lurking for years and then I saw a post that used Befunge, so I went and learned it...then I answered "Beatles and Hexagons" with it...

Cyoce

that's not fair mine is 1d

Anonymous

Seriously is ?d

FlagAsSpam

8:05 AM

@Cyoce You're gonna have a bad time. xD

El'endia Starman

@Cyoce Mine has a stack of stacks.

FlagAsSpam

@Mego Because you can make arrays of stacks?

Anonymous

@FlagAsSpam Registers

Cyoce

oh yeah

FlagAsSpam

@El'endiaStarman ^^^^ Same.

Anonymous

8:06 AM

They complicate the stack-based definition

Cyoce

I thought you meant 2d as in befunge lol

El'endia Starman

@Cyoce That's true of mine as well. :D

FlagAsSpam

@Cyoce Yeahno, Vitsy's (kinda) 1D.

El'endia Starman

Well, properly, it's (2+1)D...

isaacg

I just posted a new combinatorics challenge. Should be easy but fun.

Cyoce

8:07 AM

PlatyPar can have any number of dimensions

El'endia Starman

[waits for the inevitable question]

FlagAsSpam

Although my instruction set is parsed three-dimensionally.

Anonymous

Challenge issued: make a (3+1)D language, where the source code is the space-time continuum

Cyoce

{} create a new stack

isaacg

5 upvotes in 5 views!

El'endia Starman

8:08 AM

@isaacg It blows my mind that the sequence also describes non-intersecting chords on a circle.

isaacg

I know, that's crazy

FlagAsSpam

5 votes, 3 views on my screen. O.o

El'endia Starman

Pretty sure view count is cached...

Same deal with YouTube video likes/views.

isaacg

After refreshing, I have 7 upvotes in 7 views

El'endia Starman

Well, perhaps not so much cached as verified at regular intervals.

isaacg

8:10 AM

7 upvotes in 1 view

Cyoce

github.com/cyoce/PlatyPar/blob/master/README.md

El'endia Starman

Just stumbled upon this:

234

Q: Draw with your CPU

I have come across an article where students used network traffic to draw their university on the country's IPv6 graph. [image] Your goal is simple to tell, but hard to implement. Draw the text MAIL (as it is one of the few words that can be read on a 1D graph) on the CPU graph. It should look...

code-golf

New Main Posts

7

Q: Motzkin Numbers

The nth Motzkin Number is the number of paths from (0, 0) to (n, 0) where each step is of the form (1, -1), (1, 0) or (1, 1), and the path never goes below y = 0. Here's an illustration of these paths for n = 1, 2, 3, 4, from the above link: The desired sequence is OEIS A001006. OEIS has some...

code-golf number sequence combinatorics

Anonymous

I may end up borrowing quintopia's Catalan solution for this :P

Anonymous

First

Anonymous

8:24 AM

0

A: Motzkin Numbers

Seriously, 22 bytes ,;╗ur`;τ╜█@;u@τ╣║\*`MΣ Borrows some code from quintopia's Catalan Numbers solution, specifically the improvement I made in the comments. Explanation: ,;╗ur`;τ╜█@;u@τ╣║\*`MΣ ,;╗ get input, dupe store one copy in register 0 ur get ra...

Anonymous

\o/

FlagAsSpam

Why was Vista afraid of 7? Because 7 8 10. — Thomas Kwa 2 days ago

^ 100 votes.

Anonymous

It's the truth

Anonymous

I should make unprintables be regex operations in Seriously

FlagAsSpam

No answers yet...

9

Q: Symbolic Integration of Polynomials

Apply an indefinite integral to a given string. The only rules you will be using are defined as such: ∫cx^(n)dx = (c/(n+1))x^(n+1) + C, n ≠ -1 c, C, and n are all constants. Specifications: You must be able to integrate polynomials with any of the possible features: A coefficient, possibly...

code-golf math parsing

Anonymous

8:39 AM

@FlagAsSpam Q is hard

FlagAsSpam

Plz fix.

Anonymous

Fixedededed

FlagAsSpam

8:59 AM

What's the current opinion on writing code for things in the sandbox?

Like, not implementing new lang features, but just writing the code.

Anonymous

Gopher it

FlagAsSpam

AppleScript has builtins for this.

isaacg

I'd prefer people didn't, but not as strongly as a loophole.

Anonymous

@isaacg There's no real way to prevent people from doing it, though. We couldn't enforce the rule if we had it.

isaacg

Sure, I was just voicing my opinion.

Anonymous

9:05 AM

And I was responding with my viewpoint :)

El'endia Starman

I think Martin does sometimes post code he wrote while it was in the Sandbox.

FlagAsSpam

repeat
set n to(current date)
if date string of n contains"March 14"then
log"Pi Day"
else if a(n)contains"3:14:"then
log"Pi Minute"
else if a(n)contains"3:14"then
log"Pi Second"
else
log"No Pi Time"
end
delay 1
end repeat
on a(b)
time string of b
end

Done.

I've never used the methods in AppleScript before, but it does actually save bytes.

orlp

10:13 AM

( ͡° ͜ʖ ͡°)

isaacg

10:49 AM

(removed)

Martin Büttner

11:21 AM

@xnor I saw your comment about leap days getting boring and thought I'd post a challenge about the Forgotten Realms calendar... turns out that one has leap days too -.- (although I think it's limited to every fourth year, without the additional rules for 100 and 400).

New Sandboxed Posts

0

A: Sandbox for Proposed Challenges

Santa's Decision: In this challenge, you will help Santa decide whether somebody on their list has been naughty or nice, and subsequently get coal or toys. Input Input will come in as the person's name followed by one whitespace and then either naughty or nice. The name will have no whitespace...

Martin Büttner

Although I guess in general, challenges about fictional calendars might be a good idea to circumvent built-ins without having to disallow them artificially.

Quill - HAT MANIAC

@NewSandboxedPosts oh look it's me

Martin Büttner

(And if people manage to map a problem for an artificial calendar onto a real calendar to use built-ins after all, that could be interesting in its own right.)

Quill - HAT MANIAC

hello there

Martin Büttner

11:22 AM

hi (I was just about to leave again, though...)

Quill - HAT MANIAC

where's ppcg's design status at?

Martin Büttner

it's not a thing

there's no evidence we'll graduate any time soon

Quill - HAT MANIAC

why not?

is a certain stat not being met?

Martin Büttner

yes, we don't have 10 questions per day, but I doubt we'd graduate if we did.

Quill - HAT MANIAC

area51 seems to think it's okay

Martin Büttner

11:29 AM

316

Q: Graduation, site closure, and a clearer outlook on the health of SE sites

Back in April of 2010, Joel shared our assumptions about the role of small sites in the newly minted Stack Exchange network: If a site does not have enough activity at the end of 90 days, it will be closed down. Any existing Q&A will be archived and made available for download, but the site...

discussion beta-phase beta-sites graduating-sites

stats aren't everything though

there is no guarantee any site will graduate just because it meets those stats

Quill - HAT MANIAC

yeah, I suppose

FlagAsSpam

@Quill-HATMANIAC Left you a comment on your sandbox post. :P

Quill - HAT MANIAC

I saw

hmm

FlagAsSpam

Yeah - bonuses are kinda specific to the type of challenge; you probably want a percent bonus, because there are going to be really short solutions for this one.

Quill - HAT MANIAC

oh, like closer to 25% or 50%?

FlagAsSpam

11:42 AM

Well, is this code golf?

Or something else?

Quill - HAT MANIAC

um, i'm new here dude

FlagAsSpam

Okay - are you measuring the score by lowest byte count?

Quill - HAT MANIAC

yes

isaacg

Then it's code golf.

FlagAsSpam

So yes, it's code golf - for the duplicates thing, I'd offer 25% - just to make the shorter answers actually have a benefit in going after it.

Quill - HAT MANIAC

11:52 AM

alright, how's that @flagasspam

FlagAsSpam

I like it. :D

There might be some issues with simple regex replacement questions (might be an almost dupe), but the fact that it's the season makes it alright.

isaacg

My god, it's full of stars.

FlagAsSpam

@Quill-HATMANIAC Yup - I put the relevant tags on the end of it, I can't think of any more.

Will there be any invalid input?

Quill - HAT MANIAC

um, should I cover that too?

FlagAsSpam

If there won't be invalid input, then you probably should mention that, too. :P

Something like "You can assume that all input is valid".

Or, create a requirement for an invalid input handler.

@Doorknob冰 If Doorknob was a metal artist, what would happen?

Code golf with metal jokes in it?

New Main Posts

12:28 PM

-3

Q: Eye tracker application programming

Is there any websites or blogs concerning building application for eye tracking device. Thanks yalan

functional-programming

New Main Posts

12:39 PM

0

Q: How many weeks?

Your task is to output a single number; the number of ISO weeks that a given date range intersects. To quote Wikipedia: An average year is exactly 52.1775 weeks long, but this is not about the average. Input consists of two space-separated ISO dates: 0047-12-24 2013-06-01 The end date is neve...

code-golf date

Martin Büttner

1:04 PM

reference implementation and test cases done:

5

A: Sandbox for Proposed Challenges

Help, I'm trapped in a Sierpinski triangle! code-golf fractal graphs path-finding Drawing the Sierpinski triangle has been done to death. There's other interesting things we can do with it though. If we squint hard enough at the triangle, we can view upside-down triangles as nodes of a fractal ...

if no one has any complaints in the next hour or so, I'll post it

oh, we have a rare guest. hi, @Gareth :)

well.

trichoplax

1:18 PM

@MartinBüttner Looks good to me

Martin Büttner

thanks :)

Sherlock9

1:43 PM

I have a Python question and the answer is probably reduce but I'd like to make sure.

How do you make a list comprehension that uses the result of the last calculation in the next one?

Martin Büttner

reduce

wait, let me read the question.

Sherlock9

For example to calculate all possible combinations for n (the nth row of Pascal's triangle). I could do the following:

Martin Büttner

6

A: python : can reduce be translated into list comprehensions like map, lambda and filter?

It is no secret that reduce is not among the favored functions of the Pythonistas. Generically, reduce is a left fold on a list It is conceptually easy to write a fold in Python that will fold left or right on a iterable: def fold(func, iterable, initial=None, reverse=False): x=initial ...

oh but if I understand you correctly you want something like a generalised accumulation function?

there's this question with an unhelpful answer: stackoverflow.com/a/13828611/1633117

Sherlock9

def comb(n):
 c = [1]
 for i in range(n):
  c.append(c[-1]*(n-1)//(i+1))
 return c

Martin Büttner

it seems that itertools has accumulate: docs.python.org/3/library/itertools.html#itertools.accumulate

Sherlock9

1:49 PM

Something like that I suppose. I'm not familiar with all the terms but it seems like both answers would suit me fine ... if I wasn't golfing

Doorknob 冰

.wday==1 is the same length as .monday? in Ruby ;(

Martin Büttner

.wday<2. or is Sunday 0?

Doorknob 冰

Sunday is 0, yeah

Martin Büttner

who does that.

JimmyJazzx

VBA sunday = 0?

so everyone?

Doorknob 冰

1:52 PM

Pretty sure two languages isn't everyone :P

Martin Büttner

especially those two.

Doorknob 冰

At least where I'm from, weeks always start on Sunday.

TimmyD

.NET has Sunday as 0 as well

Martin Büttner

@Doorknob冰 I always found that weird.

Sherlock9

@MartinBüttner Actually, that last one may work. Thanks!

Doorknob 冰

1:54 PM

@MartinBüttner And I've always found weeks starting on Monday weird. ;)

Martin Büttner

are you familiar with the term "weekend"? ;)

Sherlock9

@Doorknob冰 I like calculating Sunday as 0, but weeks starting on Monday because I'd like my weekend not to be split

Though perhaps we should start our weeks on Saturday so that we start with rest

Doorknob 冰

@MartinBüttner haha, I suppose you have a point

JimmyJazzx

hmm I think my ISO week function may have an off by 1 error but I can't think up a set of dates to test it on that would cause it.

Martin Büttner

@Doorknob冰 how can you possibly reconcile the fact that half your weekend is at the beginning of the week o.O

Doorknob 冰

1:56 PM

Well, it's not, technically. All it changes is how things show up on a calendar, and... I guess I'm just used to it since I've always seen it that way.

TimmyD

@MartinBüttner Yeah. The weekend is on either end of the week. ;-)

JimmyJazzx

@Doorknob冰 If you could Use function arguments would that whole first line of your code do away?

Doorknob 冰

@JimmyJazzx If I could take input as two Time arguments, then yes

if they had to be strings, not so much (I could still reduce it though)

... wait, no, actually, maybe a single string instead of two string arguments is shorter. An array of strings would shorten it though.

Martin Büttner

@Doorknob冰 Anyway, there's an ISO standard for this, so everyone who disagrees is wrong anyway. ;)

JimmyJazzx

well then you wouldn't need to split it twice atleast.