The Nineteenth Byte

Redwolf Programs

20:34

if (new Boolean(false)) console.log(true);

There is absolutely no reason not to love Javascript.

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Q: I ain't no Fortunate Prime

The primorial \$p_n\#\$ is the product of the first \$n\$ primes. The sequence begins \$2, 6, 30, 210, 2310\$. A Fortunate number, \$F_n\$, is the smallest integer \$m > 1\$ such that \$p_n\# + m\$ is prime. For example \$F_7 = 19\$ as: $$p_7\# = 2\times3\times5\times7\times11\times13\times17 = 5...

rak1507

@ChartZBelatedly for 'A black box function which returns the next element of the sequence each time it is queried' does this mean it modifies some internal state?

so f() returns item 1, f() then returns item 2, etc?

or does f(n) return the nth item

ChartZ Belatedly

@rak1507 Yeah, exactly

rak1507

ok

if we write it in a language that doesn't handle functions with no arguments, how should we do it

ChartZ Belatedly

Although, I don't see anything wrong with having an f(n) style black box function

@rak1507 Choose a different approach or language?

rak1507

20:48

lol, ok

Redwolf Programs

So basically take n items from s, then take another and subtract the product of those items from it?

rak1507

@ChartZBelatedly are we allowed this then

@RedwolfPrograms yeah... seems a bit simple

ChartZ Belatedly

@RedwolfPrograms Assuming S is increasing, yes, but that won't always be the case

@rak1507 Yeah, sure

Redwolf Programs

@ChartZBelatedly Is there a test case with a decreasing S?

ChartZ Belatedly

@RedwolfPrograms No, I couldn't find a good sequence with a continually decreasing S

If you have one, I'll happily add it

rak1507

20:51

10 9 8 7 6 ...?

ChartZ Belatedly

That isn't infinite

rak1507

are you not allowed negative numbers?

ChartZ Belatedly

> All elements of S are natural numbers (not including zero) and no element is repeated

rak1507

ok, yeah, just read that

5 4 3 2 1 10 9 8 7 6 etc?

ChartZ Belatedly

Natural numbers ordered by the sum of their bits isn't increasing, so that could work

rak1507

20:53

idk, just thought of something random

ChartZ Belatedly

@ChartZBelatedly Wait, yes it is, because the powers of 2 always precede everything else

rak1507

@ChartZBelatedly if the sequence isn't non increasing and it's an infinite list, how can we find the smallest number n greater than some other number m so that n+m is in the list?

if it's infinite and non increasing, there's no way to know whether or not any particular number is in the list

for example, the recaman sequence is conjectured to contain every input, but not proven, so how can we know for sure what the answer is?

ChartZ Belatedly

Given that it's bounded on the natural numbers, I think that no matter the sequence, there will always be at least one element of the sequence greater than every other element

rak1507

but you have to find the 'smallest integer m'

Redwolf Programs

Wait my solution isn't working for one of the test cases :/

ChartZ Belatedly

20:59

Taking it back to the Sandbox :/

rak1507

sorry for my pedantry

ChartZ Belatedly

No, it's good. Meant it wasn't ready for posting yet, thanks for noticing before it got more answers

Redwolf Programs

I guess from now on I'll try actually solving some challenges in the sandbox, that seems like a good way to find issues

I'll make sure it's not ones I'm going to compete in, though, since that's cheating :p

ChartZ Belatedly

@RedwolfPrograms Personally, I think its fine so long as you don't keep the code to be ready to post it

user

@RedwolfPrograms You should learn Scala too, I need more competition and there's a bounty :)

Redwolf Programs

21:05

@ChartZBelatedly Not like I won't get instantly outgolfed by Arnauld or xnor by 20 bytes either way :p

ChartZ Belatedly

Arnauld's Law: However short your code is, Arnauld's is shorter

4

Redwolf Programs

TIL there's a Haskell County, Texas

And a city called Haskell

It's way northwest of me though

user

Each of Arnauld's answers are a quantum of code for that solution :P

ChartZ Belatedly

The US is the best in the world at naming cities after other thing's names

Paris, France? No, Paris, Texas

Redwolf Programs

I was about to mention that one :p

ChartZ Belatedly

21:07

Athens, Greece? No, Athens, Georgia

Georgia? No, Georgia

Redwolf Programs

We also have 35 cities called Fairfield

user

Edit: Actually, not that one

TIL there's a town in Maryland called Boring, made to honor David Boring.

Redwolf Programs

The guy the city of Houston is named after is (was) my second cousin

I'm not sure if is or was is the correct word since he died like 100 years before I was born

But he was once the president of the Republic of Texas

Lyxal

@RedwolfPrograms funny diagrams?

Redwolf Programs

Like the "I can't believe it's not Kevin"

There's more but I don't remember them

Lyxal

21:15

@RedwolfPrograms that took me probably 10 minutes

It wasn't a quick process at all

Redwolf Programs

Oh, ok.

Lyxal

Those incorrect quotes were made using a generator (which Im pretty sure I linked)

I do admit my western union post was a quick one to make

Just 4 unions and a red circle

Mitch Schwartz

21:30

@ChartZBelatedly thanks for the adding in the tabs!

Lyxal

@RedwolfPrograms I managed to turn what is usually 131 characters into 703 characters in this weeks cg bio

Redwolf Programs

Impressive.

rak1507

'12,199' quickly undownvote something @Lyxal

ChartZ Belatedly

@MitchSchwartz No problem, SE's butchering of tabs is very irritating :/

Hmm cool, I've done 5 reviews today, one in each queue except for Reopen Votes

Lyxal

21:48

@rak1507 can't. All my downvotes are locked in and I don't remember what I downvote because I rarely downvote

rak1507

aw

ChartZ Belatedly

@Lyxal Go to codegolf.stackexchange.com/users/78850/…

CMP: When did you last downvote?

March 8th for me

Redwolf Programs

Question, answer, or either?

ChartZ Belatedly

Anything

Redwolf Programs

Mar 5

Huh, the post's actually at +8 now

Controversialness of 1.333

ChartZ Belatedly

21:53

(To see: head to your activity page on your profile, navigate to votes and select "Downvotes")

Redwolf Programs

Oh, I just went to the votes tab and scrolled down :p

Lyxal

@ChartZBelatedly apparently I've only ever cast 1 downvote

Every post I've downvoted must have been later deleted

ChartZ Belatedly

@Lyxal Idk, when I follow that link, it shows a pretty prominent 404, so I think you downvote a lot :P

rak1507

@ChartZBelatedly mar 7th

question is on 8/8

Lyxal

The downvote I cast was on a question: it's currently on a net score of -14

+2/-16

ChartZ Belatedly

22:00

I mostly only downvote with another kind of vote (e.g. close or delete)

rak1507

:( imagine having enough rep for that

user

@ChartZBelatedly Today

ChartZ Belatedly

What's the big-O for partitions of a list with n elements? O(2^n)?

user

I think I downvote a lot more than other people here and upvote a lot less

Yup

Lyxal

CMQ: How many vtds have you cast (my count is 62)

user

22:04

@Lyxal Imagine being able to do that :P

Lyxal

I ask that you keep your tounge stuck in when answering.

ChartZ Belatedly

@Lyxal 314

rak1507

@Lyxal 0

user

@Lyxal :P

rak1507

@ChartZBelatedly nice, ⌊○100

ChartZ Belatedly

22:05

@Lyxal What a tounge?

2

user

:b

ChartZ Belatedly

CMQ: How about undelete votes?

rak1507

0

user

11 (all on my own posts)

Lyxal

@ChartZBelatedly try spelling things on phone

rak1507

22:06

they have autocorrect so it's even less of an excuse

Lyxal

@user I've cast 11 as well!

rak1507

pretty much whenever I type on my phone I just randomly mash the keyboard and somehow it knows what I want to say

Lyxal

@rak1507 not when it doesn't work

rak1507

apart from if I ever don't want to say ducking

Lyxal

It doesn't help that I deliberately misspell words

user

22:11

CMQ: What's your upvote:downvote ratio?

rak1507

22

user

Nice round number

rak1507

wbu

user

What does that mean?

ChartZ Belatedly

@user 2176:41

Gotta love having a prime number of downvotes :/

rak1507

22:13

lol

user

@ChartZBelatedly I have a tenth of your upvotes but only ten less downvote than you do

ChartZ Belatedly

@user What about you?

@user The vast majority of my downvotes are on deleted posts

user

Wait no I can't read

@ChartZBelatedly 2271:31, so it looks like I upvote more than you, not the other way around

rak1507

looks like I upvote the least...

ChartZ Belatedly

I don't vote that much tbh

user

22:15

Huh, I have 11 deletion/undeletion votes (all on my answers), and 11 close votes

ChartZ Belatedly

I have 10 more votes than you @user :P

rak1507

wtf, a guy who has never posted has voted over 20K times

user

I need 11 more reopen votes to get that to 11 too

@rak1507 Don't you need rep to upvote/downvote?

Lyxal

@user 6742:25

ChartZ Belatedly

@rak1507 Gnat's a very prolific voter across the network

@user Association bonus

user

22:16

Oh

rak1507

why tho

ChartZ Belatedly

@rak1507 No idea, never talked to him

user

Don't look a gift horse in the mouth

@Lyxal That's a lot of upvotes

ChartZ Belatedly

But, he has 40k+ rep network wide, so he's probably not a spammer :P

Lyxal

@user I voted the most last year

user

22:17

Ah

rak1507

voted 129 times this week?!

ChartZ Belatedly

@rak1507 The max is 280

rak1507

I don't think 129 good posts have been made on the site in its entirety!

user

Interesting

ChartZ Belatedly

@rak1507 cries in 700+ posts

Lyxal

22:18

@rak1507 yes

rak1507

that's including answers

user

@rak1507 :(

@rak1507 );

Lyxal

@rak1507 no one ever said they were new

user

(that second has a tear coming out the bottom)

rak1507

lol

Lyxal

22:19

And I'm out of votes

Again

user

Here, have some of mine.

ChartZ Belatedly

A fun goal: get on the first page of all 4 of the user pages (so all but new users) (sorting by "all time")

user

Only a mod can do it

Wheat Wizard did it, actually

ChartZ Belatedly

Currently, that requires: 32.7k+ rep, >3143 votes, >130 edits and a modhood

Lyxal

@ChartZBelatedly I'm 25% done

ChartZ Belatedly

22:21

50% here :P

Need to vote more and win more elections :P

user

99% done. Now all I need is a little more rep, a few more votes, some edits, and for someone to vote me as mod.

Lyxal

@ChartZBelatedly how's Patch?

ChartZ Belatedly

@Lyxal Tired :P

Spent the day running after tennis balls :P

Lyxal

Sounds like he had a lot of fun!

user

Who was he playing tennis against?

ChartZ Belatedly

22:26

@Lyxal Well, he decides that barking is the best course of action if he isn't having fun, so that isn't that rare of an occurrence :P

@user Mainly trees. Bouncing the ball off something is the best way to confuse him

user

@ChartZBelatedly Oh, yeah. Trees are some of the toughest opponents I've played against. Hell of a return, and they never get tired :)

ChartZ Belatedly

@user Luckily, trickshots usually work, and their footwork isn't great :P

user

@ChartZBelatedly I'll have to keep that in mind next time :P

CMQ: What's your favorite sport?

ChartZ Belatedly

To play or watch?

rak1507

@user golf :P

user

22:29

@ChartZBelatedly Either, I guess

ChartZ Belatedly

@user The cricket's been fun to watch recently :P

user

@ChartZBelatedly Cricket's still going on?

ChartZ Belatedly

@user Yeah, the India v England T20 was today

Or yesterday, time zones are weird

user

@ChartZBelatedly Huh, I don't know if I should find that encouraging or discouraging.

I hope India beat y'all

ChartZ Belatedly

I won;t spoil it beyond saying it was an entertaining match

TBH, I'd describe the last 2 Test matches as entertaining even tho we got thrashed, so I hope that doesn't give anything away

user

22:34

Aw, England won.

ChartZ Belatedly

Apparently, I joined this site 4 years and 10 minutes ago :P

@user Yep :P

user

Happy Cake Day?

rak1507

@ChartZBelatedly happy ppcg/cgcc birthday! hope this site survives for another 4

user

Ooh, looks like England won by a pretty wide margin (tbh I don't remember much of crickcet anymore)

@rak1507 And gets better

Anyone feel like doing a Programming Language Quiz Mark 3?

ChartZ Belatedly

@user I'm not sure what's changed since the last one? TIO being a thing was a massive change between Mark 1 and Mark 2, and properly affected answers

Besides there are other cops-and-robbers that could do with reposting :P

user

22:41

I guess so, yeah

rak1507

helloworldquiz.com/#/game I got 3200

ChartZ Belatedly

@rak1507 That website needs to browse through the Hello World thread for some more languages :P

Adding some compressed strings in golfing languages would be evil :P

rak1507

lol yep I had haskell ~4 times

ChartZ Belatedly

22:57

> Languages count 75

We have 800+ answers to Hello World, someone get the devs on the phone :P

user

Ooh, I just got a choice between Idris and Haskell (it was Idris because of a single :)

ChartZ Belatedly

The choice between LOLCODE and Omgrofl almost got me before I realised that LOLCODE has strings :P

> Your score is 7200!

Took me a couple of tries tho :D

user

Argh, I keep mixing up Pascal, Ada, and Delphi!

@ChartZBelatedly Nice, I can only go up to 900

ChartZ Belatedly

theoldreader.com/kittens

That's a great website

rak1507

@user I got that one too

nearly caught me

@ChartZBelatedly trying multiple times is cheating

user

23:06

Man, I hate Xtend and Fantom and C# all these upstart languages that look like Java

ChartZ Belatedly

@rak1507 "Trying multiple times is learning" - machine learning algorithms

rak1507

lol

user

Finally got to 3700

rak1507

second try got to 4300

some tricky questions there

ChartZ Belatedly

I like the Delphi/Pascal misdirect :P

user

23:10

What's the difference between the Prolog and Logtalk snippets, by the way?

Redwolf Programs

@user To watch: None, To Play: I ran track when I was 13 and I was the worst in the district but it was fun :p

user

That's respectable

@user I like watching basketball and playing tennis, although I suck at both.

rak1507

tennis is fun, I used to play it quite a lot but I don't any more

user

Because of COVID or because you're too busy on the golf course? :P

rak1507

no, because I am now unable to walk due to side effects of cancer treatment (bit of a downer, sorry!)

user

23:17

Oh, I'm so sorry

Are you all right?

rak1507

cancer wise, yep, all good

user

That's good to hear

rak1507

thanks

Redwolf Programs

@rak1507 I got 800 first try, then 900, then 3600 :p

rak1507

yeah, seems like before long you could see every snippet

not enough examples

user

23:59

Any feedback?

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