The Nineteenth Byte

7:42 AM

Oh cool, so now if I mistakenly use "he" all the time because in my native language the equivalent of "he" is the default pronoun, then I’ll get banned

guess I should reincarnate into someone born in another country

8:11 AM

@MilkyWay90 Because it's difficult to get. Only 167 people have it

8:27 AM

@cairdcoinheringaahing That badge doesn’t make much sense on PPCG though

accepting answers is pretty "random"

@Fatalize Quite a few badges don't make sense on PPCG, we just have to deal with being part of SE

@cairdcoinheringaahing Also Judaism.SE has problems with certain badges.

@Adám I'm guessing Fanatic, given religious holidays?

@cairdcoinheringaahing Could program a bot to connect on saturdays

Or try to manipulate time zones, given that SE uses UTC times for stuff like that

8:37 AM

@Fatalize We're not allowed to do things that make it look like we're doing something forbidden.

@Adám Does asking a (non-religious) family member/friend count? You could ask someone to just refresh the front page and it'll log you as being here for that day

@Adám Refresh the page 1 millisec before saturday, so that it will relog you on saturday because of latency

@cairdcoinheringaahing Oh, that's even worse; we're categorically prohibited from doing so.

@Fatalize Saturday isn't usually a problem, since it goes by UTC date, and a Jewish date is from sunset to nightfall, about 25 hours later.

@Adám What if you need something done on a Saturday, something urgent and important, where it doesn't matter who does it? How would you go about that?

What could possibly be so urgent and important?

8:41 AM

Maybe something relating to work? A critical system failing and they need all hands on deck?

@Adám You have to call urgencies because someone you know is having a stroke

That's a better example

@cairdcoinheringaahing Monetary loss is not an issue.

@Fatalize That situation has a specific commandment override the prohibitions.

so only life-and-death situations are excempted then?

@Adám I have to say, I respect your devotion to your faith. Don't necessarily agree with it, but respect it anyway

8:44 AM

Pikuach nefesh

Pikuach nefesh (Hebrew: פיקוח נפש, IPA: [piˈkuaχ ˈnefeʃ], "saving a life") describes the principle in Jewish law that the preservation of human life overrides virtually any other religious rule. When the life of a specific person is in danger, almost any mitzvah lo ta'aseh (command to not do an action) of the Torah becomes inapplicable. == Biblical source == The Torah, in Leviticus 18:5, states "You shall therefore keep my statutes and my rules; if a person does them, he shall live by them: I am the LORD." Ezekiel 20:11 also states this phrase, "And I gave them my statutes, and showed them my...

@cairdcoinheringaahing Thank you. The dean of my rabbinical school used to say that The Torah (the law) doesn't need a facelift. In general, I've found people to be very respectful of expressed "extremism" — at least when it is coupled with trying to be nice.

Interesting:

> Climbing a tree is rabbinically forbidden, for fear this may lead to one tearing off a branch

So climbing trees is forbidden, even if a branch isn't actually broken (or similar)?

9:01 AM

Does that forbids you from using Dijkstra’s algorithm?

3

:p

@cairdcoinheringaahing Yup, we have lots of such rules. I usually explain it like this: Imagine (God forbid) that you find yourself in a concentration camp. The well-organised Germans made sure to put a 30kV sign on the fence. Let's you do the math (temperature, humidity…) and find that 50cm is enough to distance from the fence to prevent sparking from killing you. How far would you stay away (considering you might trip over a stone, get startled by a loud noise, someone might bump you, etc.)?

@Fatalize Wat?

@Adám Algorithms on trees…

John Dvorak

I'll argue that because they are drawn, to traverse an algorithmic tree, one descends it, not climbs it.

ngn

9:18 AM

tree traversal is guaranteed to not break any branches. alpha-beta pruning though... :D

You guys are good. Maybe post some of this on judaism.SE when we reach March.

Night2

10:34 AM

Has there even been a challenge to find a simple pattern in sequence of numbers or output next number in sequence? For example if input is 1 2 3 4 5, output should be 6 as pattern is n+1. I tried google and site search and only found this: codegolf.stackexchange.com/questions/174882/find-the-pattern but it is kind of complicated and has no answers.

I'm thinking about a simpler challenge which limits the patterns, so maybe brute forcing could be possible too.

Q: Reverse it! Quickly! (JAVASCRIPT)

Sounds reasonable. Definitely sandbox though.

New Main Posts

10:51 AM

2

Q: Visualize a large int

Convert a large int (e. g. 1234567890) into a string containing the usual decimal prefixes k, M, G, T, etc. for kilo, mega, giga, tera, etc. The result shall be groups of three digits, interspersed by the prefixes (e. g. 1G234M567k890), so that it is easy to glance the order of magnitude of the ...

code-golf

-1

Typically, reversing an array is a pretty straightforward task even for novice programmers. But not when a crowd of angry zombies scratching your door, looking for a fresh brains. In this case even skilled ninja-geek probably prefer to quickly push his code on github to have enough time to find a...

array-manipulation javascript

user202729

@NewMainPosts Not dupe, but is language specific challenge on topic for this site?

@user202729 Yes, but usually frowned upon if not for very good reason.

user202729

In this case the restriction "do not use builtin Array.prototype.reverse" does not make sense in other languages.

sequence array-manipulation javascript linear-algebra

@user202729 Right, but the language restriction is frowned upon too. The challenge could have prohibited all built-in reversing functionalities. Still a do-X-without-Y though…

Two wrongs doesn't make a right.

user202729

11:38 AM

@Adám Re do-x-without-y: 1. "it's hard to define "without Y" for a wide class of language" -> not a problem. 2. "it won't be saved by banning things" I'm not sure about this point. Without the built-in I think it's complex enough.

There's also codegolf.meta.stackexchange.com/a/8928/69850 but this can be patched pretty easily.

New Main Posts

11:52 AM

-1

Q: Twice Linear !!!!?

Consider a sequence u where u is defined as follows: The number u(0) = 1 is the first one in u. For each x in u, then y = 2 * x + 1 and z = 3 * x + 1 must be in u too. There are no other numbers in u. Ex: u = [1, 3, 4, 7, 9, 10, 13, 15, 19, 21, 22, 27, ...] 1 gives 3 and 4, then 3 gives 7 and 1...

flawr

@Adám Interesting, thanks for sharing.

HighlyRadioactive

12:38 PM

Just want to mention that I posted a challenge in the Sandbox for Proposed Challenges.

A: Sandbox for Proposed Challenges

The bot will probably post it here soon.

New Sandboxed Posts

12:55 PM

0

Interpret Unneccesary (Not quite) Unneccesary is a joke language created by Keymaker. The source is unneccesary, and if given, it will error out. Your task here is similar. If there is input, your program should error out. If the input is empty, your program should do nothing and terminate.

2:21 PM

Any mods around? Could you unfreeze this room please?

@cairdcoinheringaahing that’s a long unfreeze

@Fatalize It's been a long time since I used it :P

things-not-on-ips gaming.stackexchange.com/q/358739

@AdmBorkBork That's fairly normal on Arqade

Exhibits 1, 2, 3 and 4 :P

Yep. Continuing the awesome tradition.

DJMcMayhem

3:07 PM

in JHTBot RO tests, 20 secs ago, by Feeds

DJMcMayhem has unfrozen this room.

Thanks!

Cows quack

3:54 PM

noob security question: would simply using https be enough to protect yourself from others using the same public wifi?

J. Sallé

@Cowsquack usually, yes

Cows quack

even for online banking?

J. Sallé

Can't guarantee, but usually yes. Also, most banking applications have security measures of their own to avoid the kinds of attacks I assume you're worried about (MITM, for instance)

Cows quack

found this security.stackexchange.com/q/174850

4:57 PM

Anyone around who's willing to be a guinea pig for my chatbot tests? Would just need you for ~5 mins

DJMcMayhem

Sure

John Dvorak

o/

Anonymous

5:43 PM

@Fatalize It has been made clear that unintentional misuse of pronouns is not an actionable offense, because we all slip up sometimes, and remembering which pronouns to use is hard even for native speakers.

Pavel

microsoft.com/en-us/research/wp-content/uploads/2016/02/…

@Pavel Why do Nigerian Scammers Say They are from Nigeria?

Veskah

6:00 PM

@Adám Late but the elevator mode that has it stop on all floors so people don't have to use the buttons is some cheeky stuff

6:57 PM

@JoKing That's hilarious.

@Adám Every time I scroll past this my brain automatically translates it to "Pikachu"

:-/

Veskah

7:11 PM

@AdmBorkBork My favorite mountain destination is Machu Pikacchu

7:25 PM

Today's codesignal challenge

CMC: that↑
input 3 < (s, e) < 21, output: the string

El'endia Starman

7:42 PM

@FrownyFrog Will the output be anything other than a and b alternating? ^a(ba)*b?$

Also the interplay between s and e seems to imply that this is literally just a loop over range(s, (s + e) // 2 + 1).

8:06 PM

that's correct

strangeCode s e =  div(e - s)2`take` cycle"ab"

Haskell, 38 characters according to codesignal rules (no whitespace counts, even in literals)H

4 users got 36 though

Test cases?

on it

wizzwizz4

@El'endiaStarman -1 Needs more parens.

El'endia Starman

@wizzwizz4 Oops, fixed.

4, 3 -> ""
4, 12 -> "abab"
6, 8 -> "a"
7, 8 -> ""
2, 18 -> "abababab"
1, 5 -> "ab"

oops
s and e > 3

8:29 PM

crap, gtg before finishing it. Fun puzzle, though!

dzaima

@FrownyFrog dzaima/APL, 12 bytes. relies on ⍴ quietly rounding down on float inputs which may or may not be fixed in the future

8:47 PM

@dzaima but you do the rounding, so it's actually 10

dzaima

@FrownyFrog what do you mean? the 0⌈ is there just to handle cases when s+1 > e

when s == e?

I just can't find a case that breaks without 0⌈

dzaima

@FrownyFrog e.g. for s=20, e=3 without it, it'd do ¯8⍴'ab' which errors

oh I see