The Nineteenth Byte

Optimizer

17:00

I am solely talking about the anime . "Maria the Virgin Witch"

Runer112

oh

Optimizer

I have no idea what "Maria Tidal Tug" means

the anime is the anti story of Virgin Mary

Runer112

just saying, I could totally see urban dictionary having some entry called "tidal tug" with an example like: Maria gave me a tidal tug behind the school yesterday

Maria Tidal Tug

@Runer112 you have a dirty mind ;-)

Optimizer

I can totally see it having now, if not yet

Runer112

17:02

yeah... I'm not exactly proud of it

Maria Tidal Tug

actually it was just an anagram of DigitalTrauma for April 1

Geobits

Shoulda picked "I tug at Admiral" :P

Maria Tidal Tug

@Geobits "bog site" or simply "Ego bits"?

Optimizer

"Ego bits" is so apt

Geobits

As tempting as it was to use "ego", I'm Bigtoes. Blame Rainbolt for not being more creative if you like :P

Optimizer

17:08

but tomorrow you can be an ego bit.. :P

Geobits

Tomorrow is Geobits Day, and I'll be celebrating appropriately.

Peter Taylor

@NathanMerrill Linear programming.

Maria Tidal Tug

Shameless plug - my first pyth attempt

0

A: Find the next 1-sparse binary number

Pyth, 10 bytes Borrowing the x & (x*2) algorithm from @alephalpha Borrowing Pyth boilerplate from @Jakube My first attempt at Pyth: f!.&T*T2hQ Try it here implicit: Q = input() f hQ find the first integer T >= Q + 1, that satisfies the ...

Peter Taylor

Ok, it's integer linear programming and not as nicely behaved as the rational version, but it expresses the problem concisely.

Runer112

A Data Rug Limit

Nathan Merrill

17:13

@PeterTaylor I don't understand what you mean

Maria Tidal Tug

Sp3000

@MariaTidalTug y is double in Pyth

Maria Tidal Tug

@Sp3000 cool thanks!

Runer112

A Ritual Dig Mat

orlp

17:26

12

Q: How do I get more Klotski in my life?

I really love sliding tile puzzles, but recently, I haven't had time for them. Hence, I need a program to give me my fix of sliding-tile puzzles, specifically Klotski puzzles. Your input will be in the following format: ####### #001gg# ##.222# .###### where # represents walls, . represents a...

^ I have a solution but CBA to golf it :(

2d golfs are so often annoying :P

Peter Taylor

@NathanMerrill Are you familiar with the area of optimisation called linear programming?

Nathan Merrill

@PeterTaylor no, I'm not

@orlp do it anyways :P

Peter Taylor

The basic scenario is: you have a set of variables x_1, ..., x_n. You have a set of inequalities which are linear in the x_i: e.g. 3 * x_1 + 4 * x_2 + 3 * x_3 >= 5. And you have an objective function linear in the x_i which you want to optimise: e.g. x_1 + x_2 + ... + x_n.

When your variables can be real or rational numbers, the optimisation can be done in polynomial time. When they have to be integers, it's NP-hard.

Nathan Merrill

by optimize you mean that the sum is minimized?

Peter Taylor

Typically, yes. Of course, you can maximise it by negating all of the coefficients.

orlp

17:35

linear programming is useful in my mind, because it's trivial for humans to encode a lot of problems in terms of LP

it's also useless because it's often way too slow :P

Peter Taylor

The last time I used it was to find the Nash equilibria for the game of Morra.

TheBestOne

google.com/…

Nathan Merrill

well, since my problem does require integers, I guess its useful to know that its NP-hard

orlp

@NathanMerrill What is your problem?

Nathan Merrill

you are given an array of pre-defined integers. Your goal is to reduce all integers in the array to 0. The only method you have to reduce integers is to pick a position, reduce it by N, and reduce its immediate neighbors by M

N and M are predefined, and N > M

Peter Taylor

17:38

Actually the reduction is the other way: ILP being hard doesn't necessarily mean that your problem is hard. (Although I suspect that it is).

orlp

@NathanMerrill Does a solution exist?

Nathan Merrill

yes

whether its NP-hard, I don't know

oh, sorry, when I said "to 0" I also meant it can go below 0

orlp

Don't think so

You can work from left-to-right, aggressively reducing possible combinations

Nathan Merrill

do I start with 0 or 1?

orlp

the first element can only be a certain amount of combinations of aM + bN

Nathan Merrill

17:41

no, because the first element can go below 0

orlp

no?

you can only reduce

and the goal is to get to 0

Nathan Merrill

I didn't make that clear. It needs to go at least to 0

it can go below

orlp

then the solution is trivial

just reduce everything by a lot

Nathan Merrill

my goal is to minimize the number of moves I take

orlp

the goal seems to be changing every second :P

since N > M, I think the optimal solution is to always reduce the highest element

Nathan Merrill

17:43

that won't work either

orlp

no, it doesn't

it will if N > 2*M though

Nathan Merrill

[2 3 4 3 2] N = 3 M = 2

orlp

or maybe 3*M

I strongly suspect this is not NP-hard though

Nathan Merrill

if you want to see the full problem description, its here: codeforces.com/problemset/problem/6/D

Doorknob

@PhiNotPi Hmm, that makes sense. @Calvin'sHobbies agreed?

TheBestOne

17:47

I have a poll for red team for pixel wars here

Calvin's Hobbies

@Doorknob We may as well keep it undeleted as a staging area, but I am right now working on a proper test area integrated into the snippet.

Doorknob

Alright. Just flag again if you finish the testing thing.

orlp

@NathanMerrill here's a hint

@NathanMerrill Group up every 3 adjacent elements

So abcde becomes abc bcd cde

Then determine for each group the best solution

TheBestOne

@NathanMerrill I would kill the archers left to right.

orlp

then do one move in the group that had the worst best solution

and you only have to recalculate the solution for that group and the two adjacent groups to determine the next move

TheBestOne

17:55

Never mind, that won't work.

Nathan Merrill

@orlp and if they tie?

orlp

@NathanMerrill then it doesn't matter

Nathan Merrill

@orlp yes it does

[2 3 4 3 2] N = 3 M = 2

all three will tie

but you should take the first or third, not the second

orlp

well

since you can't target either 2

there's more groups here

err

Nathan Merrill

you also should be making 5 groups

[9 2 2 2 9] N = 4 M = 2

orlp

17:57

also, I don't see why it would matter

[2 3 4 3 2] N = 3 M = 2

[3 4 3]'s worst case is 2

so you hit the 3

[0 0 2 3 2]

Peter Taylor

If you consider that in groups of 3, [3 4 3]'s worst case of 2 can be achieved by hitting the 4 twice.

So that ties with the correct moves.

orlp

oh, a tie within a group

I thought between groups

Peter Taylor

It's also tying with the adjacent groups.

Nathan Merrill

[2 3 4] has a worst case of 2 as well

PhiNotPi

I'm going to be leaving on vacation next week. I am worried about losing my 66-day consecutive visit streak. What should I do?

2

orlp

17:59

if there's a tie within a group

Nathan Merrill

lol

orlp

always prefer the move on the side

Geobits

@PhiNotPi Give me your password, obviously.

orlp

since that'll reduce other groups as well

Peter Taylor

@PhiNotPi, extract your cookies and set up a cron job with curl / wget.

orlp

18:00

does that solve the issue?

Geobits

Or just cancel your plans. What's more important, a vacation or a fanatic badge?

Nathan Merrill

I don't think so, I'm trying to come up with a situation that it won't work on

Peter Taylor

@orpl, not really. The move in the middle reduces the other groups as well.

orlp

@PeterTaylor But not by as much

So the one on the side is preferred, if it doesn't affect the worst case moves of the group

Nathan Merrill

[4 2 4 2 4] N = 3 M = 2

I consider all 5, and they all get a score of 2

so I start with the second one?

orlp

18:03

since all groups are worst case 2, you can start with either 2

[4 2] will result in 2

[2 4 2] will result in 2

2

Peter Taylor

But if you break the tie between groups by selecting a [4 2 4], your heuristic says that you should start with the 4.

Rainbolt

This is the best alter of a Magic card I've ever seen. Introducing, Taylor Swiftspear.

orlp

hmm

no, the tiebreaker doesn't quite work

I would definitely introduce a bit of preprocessing to make the problem a bit more uniform

since you can't target either end, I'd always use x/M moves on the 2nd and n-1th element

Nathan Merrill

wait, you can't target an end?

orlp

nope

says so in the problem you l inked

Nathan Merrill

18:12

ah, you are right

orlp

then maybe you can do some sort of left-to-right algorithm

Nathan Merrill

regardless, you can still end up with the same situation

orlp

yeah

since if you have x elements

the leftmost element must either be cleared by targetting it directly or the element to the right of it

(and ofc combinations of the two)

order of operations doesn't matter at all

Nathan Merrill

[0 0 5 2 5 0 0] N = 5 M = 2

orlp

yeah I know, the tiebreaker doesn't work :P

Nathan Merrill

18:15

that's not even a tiebreaker

2

orlp

actually, there it does work

Nathan Merrill

the element with the maximum number of moves is the center one, which is the wrong one to pick

2

orlp

[0 5 2] has a worst case of 1

2

err

2

right

2

nvm that algorithm all together

2

Rainbolt

This guy has ruined Christmas movies for me forever: worldbuilding.stackexchange.com/q/13495

2

Guys, Code Review has 21768 starred messages. We have 2306.

2

orlp

unacceptable

2

randomra

18:22

what game you talk about? I can't find out

Nathan Merrill

we shouldn't go back to this: chat.stackexchange.com/transcript/240?m=19630884#19630884

2

Rainbolt

You think that's bad? Take a look at CR's chat right now. I linked it above.

Nathan Merrill

@randomra codeforces.com/problemset/problem/6/D

Rainbolt

Their starwall is like three times as tall

2

Nathan Merrill

XP

randomra

18:24

thanks, checking...

Nathan Merrill

their chat had some missing spots, so I had to fill them

2

Hosch250

> You have fully used your vote allowance for today

orlp

@Hosch250 time to bring out the sockpuppet

Hosch250

@orlp I don't have one.

@Rainbolt StarredMessages += 40;

Rainbolt

18:41

All of you who want to play StackEggs for fun vote on this proposal: meta.codereview.stackexchange.com/a/5175/36427

Geobits

I leave for 40 minutes and you guys trash the place. I'm calling all your parents.

13

VisualMelon

19:04

hmm... my heuristic solver for codegolf.stackexchange.com/questions/48352/… seems to work better (and get results faster) when it adds and sorts (slow) then uses a binary insertion, I should have know that deviating away from a breadth first search would create problems, BFS is the only way to go

New Sandboxed Posts

0

A: Sandbox for Proposed Challenges

Build a minimum-clue Sudoku generator My attempt at stating this question, but with a more objective solving criterion. Your task is to build a program or function that taks a solved Sudoku grid S in the format of your choice and attempts to generate a problem grid with as few clues as possible...

randomra

@NathanMerrill a 16 (2*n-4) variable integer linear programming can solve this I think

edit: 8 (n-2) variable

Martin Büttner

oh god, not this again

4

randomra

19:19

if you fix every second variable (attack number for every second archer) computing the rest is O(n), so total O(n * h^(n-2)/2) which is 500K step, well below the 2s time-limit

Optimizer

hey guys, you missed one up there in between, but I got ya

Peter Taylor

@MartinBüttner, I had hoped that the chat would be back to normal today. Sigh.

Martin Büttner

^ this

Optimizer

I blame Rainbolt

Rainbolt

19:43

You called?

This is making me sad:

Mostly because they stopped at three. It'll never get reversed like that

Geobits

At least mine are legit :P

Martin Büttner

35 downvotes and net rep over 100 is pretty impressive

Geobits

I got another +70/-4 the next day, so yea. More upvotes than I was expecting.

Total vote tally is +25/-36.

Optimizer

I found him guys, the one nothing vote we were constantly having

Rainbolt

20:04

He claimed he could hit 190. That's a stretch.

Martin Büttner

You should edit an "/s" in front of it.

Compass

Ah, "Nothing." The equivalent of a no-vote at best, and a wasted savior vote at worst.

Rainbolt

@MartinBüttner You saw that crap yesterday? I thought you got kidnapped or something

Optimizer

All those Arqade fans changing the chatrooms :D

Martin Büttner

@Rainbolt Yes I saw that.

I also commented about it in here.

Has anyone in here played Fallen London? (Or is still playing it?)

Alex A.

20:30

FYI: A new user has had 6 accepted entirely superfluous edits in the last couple of days, 4 of them today. Why are people accepting these???

@MartinBüttner: This is the first time I've heard about Fallen London but I looked it up and it looks neat!

Nathan Merrill

why are there two urls?

Compass

@Optimizer "The only thing necessary for the triumph of evil is for good men to do Nothing." Or is that too harsh?

Nathan Merrill

fallenlondon.storynexus.com

failbettergames.com/fallen-london

Rainbolt

@AlexA. Why is he accepting superfluous edits? I suggest you ask him.

Compass

@Rainbolt I assume he actually means his superfluous edits are being accepted

Rainbolt

20:33

Oh, the grammar of the first sentence suddenly makes sense now

Martin Büttner

@NathanMerrill The second one just seems to be the promotional page from the developers. The actual game is at storynexus.

@AlexA. I started playing the other day, and it's quite fun so far... the depth of the game seems very impressive. And it's set in a very interesting world, I think.

And I guess if anyone's playing Sunless Sea it would be even more fun for them. (Same developers, set in the same world.)

Alex A.

@Rainbolt: I meant what @Compass said. Sorry for the wording.

Compass

Technically "has had" is correct wording.

englishpage.com/verbpage/presentperfect.html

Martin Büttner

@MariaTidalTug is your name change temporary?

Compass

That being said, English verb conventions seem terrifying.

Martin Büttner

20:38

@Compass I think "has had ... edits accepted" is also correct and might have been clearer.

Alex A.

Haha oh you guys.

Compass

Welcome to ELL or something.

Maria Tidal Tug

@MartinBüttner yes, definitely tempoary

Compass

Unintended pun there.

Rainbolt

Ah, you compared us to the nice people. ELU is the mean half of ELL.

Maria Tidal Tug

20:40

it was an anagram for April 1

I hadn't realised I can't change it back for 30 days :-/

Alex A.

@Compass: Native English speaker here, just not a native chat room proofreader. u_u

Compass

I wasn't making fun of you.

It's just that English sometimes looks REALLY WEIRD even to native speakers.

Alex A.

@Compass: I know, I was being silly.

Compass

Like "wasps."

Say that word, then think about it.

Alex A.

6

Q: What English word has the most consecutive consonants?

I was driving past the village of Hampsthwaite the other day, and happened to spot the six consecutive consonants in the middle. It set me wondering whether this was the most possible, and if not, which word contains the maximum number?

orthography consonants

Compass

20:44

StackExchange recommended this one to me in a side bar a few months back.

10

Q: Is there a parallel to defenestration -- for buses?

We often see defenestrate used in a somewhat jocular, mock-intellectual way for throwing someone or something out of a window. Is there, or could we imagine, a similar word for "throwing (someone) under the bus?" Not as literal as 'sacrifice', but rather something more whimsical, in the same vein...

single-word-requests slang

Let the subvehiculation begin.

Alex A.

Oh man, I'm subvehiculating up a storm here.

Rainbolt

When I was 14 my girlfriend and I used to have a paucity of diversions. We got tired of saying "I'm bored"

I learned years later that "I'm bored" is 14 yo code for "I wish we could just have sex so I can move on to other more important things."

That girl lived four blocks away and I saw her one time in real life.

Hosch250

I like subustication.

Rainbolt

Bro, why'd you subusticate me. I thought we were homies.

Optimizer

@Rainbolt what age did you realize ?

Rainbolt

20:51

The year I lost my virginity, which I will not be sharing. A lot of realizations came that year

Alex A.

@Rainbolt: One time in real life? That's... impressive.

Rainbolt

At 14? I think that's normal

Alex A.

Depends. Internet relationship?

I barely knew how to use a computer at 14.

Optimizer

@Rainbolt I am surprised that you actually understood my half written question in the first go!

Martin Büttner

I'm pretty sure everyone who knows enough about Rainbolt did.

Optimizer

20:57

we need more Blue pixels!

Alex A.

I know next to nothing about Rainbolt and I did.

Optimizer

@MartinBüttner join up

Martin Büttner

Maybe some time this weekend

Alex A.

@Optimizer: I'm a blue but I'm really bad at KOTH. :/

Optimizer

this is not your usual KOTH

its actually really fun. my pixel is half done

Alex A.

20:59

Don't get me wrong, it looks like fun, I just don't think I'd be able to contribute in a meaningful way given my (lack of) abilities in that regard.

Optimizer

NP

Rainbolt

@Optimizer It didn't help that your question is pointing to the totally wrong message. Hover over it and you'll see

I should make a challenge about parsing the thing Optimizer says

Optimizer

my bad, can't change now

@Rainbolt now that you've started to understand, I am pretty sure its a trivial challenge

:P

Rainbolt

My understanding will magically falter when we disagree on something

3

Geobits

^ 1000x this

Rainbolt

21:03

Ok

Optimizer

so true

Rainbolt

My understanding will magically falter when we disagree on something My understanding will magically falter when we disagree on something My understanding will magically falter when we disagree on something My understanding will magically falter when we disagree on something My understanding will magically falter when we disagree on something

That's five....

Someone want to help?

Optimizer

"My understanding will magically falter when we disagree on something".repeat(1000)

Geobits

"I will not use code to get me out of mundane punishment"

Alex A.

# Julia
println("My understanding will magically falter when we disagree on something "^1000)

Geobits

21:05

Seems like there's a foxtrot out there about this....

Ah yes: gocomics.com/foxtrot/2003/10/03

Rainbolt

Python print "My understanding will magically falter when we disagree on something" * 1000

Hurray for string multiplication

Alex A.

@Geobits: Haha, I remember that one!

Pietu1998

# Perl
say "My understanding will magically falter when we disagree on something"x1000;

Gotta participate :D

Geobits

A shame that isn't a @Piet example instead :P

Pietu1998

@Geobits Hmm, could be hard to show that in chat

Alex A.

21:11

Oh yeah, @Pietu1998, is your username a reference to Piet the language?

Pietu1998

@AlexA. Actually, no. It's a kinda long story related to "Pietu" being 1 character different from my old nickname at home "Peetu" and Lego Club banning it for containing "pee" (sigh, that was also like 8 years ago)

Alex A.

Yes, 2007 was a different time in the acceptance of urine.

Optimizer

urines were so much discriminated against back then

Alex A.

We've made so many strides since then. Viva la urine.

Rainbolt

Lego Club? Who actually joins the lego club?

Alex A.

21:19

People who like Legos.

Rainbolt

"Today we have competitive building! First one to build an arbitrarily beautiful castle wins!" On your marks. Get set. BUILD!"

New Meta Posts

1

Q: Can I use another person's code in code golf?

Can I improve upon code from another answer in a game of code golf, do I have to ask, or is it not allowed?

discussion

Rainbolt

@NewMetaPosts I am going to change your name to "15 Minutes Old Posts" if you keep doing that.

Alex A.

Oh yeah, I was just reminded why I came here to begin with. (I get really distracted.) That user who keeps making entirely superfluous edits, some even changing the tone of the post. The edits are accepted by the community. Six in the past couple days, four today. Why do people keep accepting the edits?

Pietu1998

@Rainbolt club.lego.com It's an actual site. Back then it had like Lego-themed games and maybe discussions. It also used the same accound for the Mindstorms site where you could share your inventions, which is basically what got me into it. You know, the drag'n'drop programming made even worse than Scratch.

Which reminds me of the minimal OpenGL library (just transformations and ortho/perspective viewing) I made with Scratch... :D

Martin Büttner

21:27

@AlexA. let me check

Alex A.

@MartinBüttner to the rescue!

Martin Büttner

which user was that?

Rainbolt

Can you link to one?

Martin Büttner

theonlygusti?

Alex A.

@MartinBüttner: That's the one

It can't be just me that thinks they're superfluous edits... :/

Martin Büttner

21:31

okay, apparently I approved the first one. it's true it didn't make much of a difference, but the question was on the front page anyway, so bumping it didn't hurt and I figured if someone found the previous wording less clear, might as well change it (I found both versions clear)

Alex A.

Ah, okay. Makes sense.

Martin Büttner

hm, I remember seeing the second one in the queue, but for some reason I didn't vote on it. that should have been rejected. I guess I just left it open in a tab and forgot about it until it was too late.

Rainbolt

Code Review has a bot that speaks up whenever their site is mentioned in the comments of another site. I am jelly.

And a bot that pipes up when new questions get posted

We used to have one then it died

Martin Büttner

@AlexA. I don't see any harm with the edit of the 1-sparse challenge you rejected. It's somewhat nicer formatting, includes a relevant link, and again it's an active challenge so bumping is not an issue

I always take this into consideration ... if something's active, I tend to accept any edit which isn't actually wrong or contrary to what the OP might have intended, even if it's as minor as adding syntax highlighting.

@Rainbolt There's actually an alternative to having these feeds posted as messages in the chat. You can give the chatroom an RSS feed which will pop up at the top of the chat window in an overlay box. The Mathematica chat uses it for new questions.

Alex A.

I agree with everything you said. My issue was partially that the user formatted the binary using Python-specific representation, which not everyone is familiar with. I think that would make it a little harder for new users.

Martin Büttner

21:39

I wasn't aware it's Python-specific (I don't Python much), but it seemed pretty obvious to me. But yes, that might have been a little over the top. If you find that, you can always use "improve edit", and revert that part of the edit.

Peter Taylor

It's a bit odd that the change to add 0b and backticks was applied inconsistently.

Martin Büttner

btw, I agree with rejecting the python tips edit

Alex A.

@PeterTaylor: Agreed.

@MartinBüttner: Why do changes like the one with Python tips get approved in general?

Martin Büttner

robo reviewers?

Alex A.

Is that someone who automatically accepts regardless of the changes made?

Martin Büttner

21:41

yes

TheBestOne

How do you tell if an array contains a particular something in javascript?

Martin Büttner

well I mean you can check who accepted the edits

Alex A.

Yes

Martin Büttner

oh

indexOf

Peter Taylor

indexOf

PhiNotPi

21:43

My Chrome thumbnail for PPCG is a picture of me playing StackEgg.

Alex A.

Haha

PhiNotPi

I was hitting the "Continue" button.

Alex A.

My thumbnail is a picture of me smashing my computer with a bat with StackEgg on the screen.

@PeterTaylor: I really appreciate you taking the time to give me input on my sandboxed challenge! Just wanted to say thanks.

Pietu1998

all right, had to do it in Befunge, I want to see you decipher this

pastebin.com/3bQq0TVe

Alex A.

@Pietu1998: "My understanding will magically falter when we disagree on something"?

Pietu1998

21:52

Yeah, and 1000 times, but how does it work?

Alex A.

F if I know, man. It was just a lucky guess.

Martin Büttner

@Pietu1998 You first compute 1000 as 10*10*10. Then you've got a simple rectangular loop decrementing this. The string is split over the two lines (where you've got the string mode), and the ASCII codes are shifted up by 5 (which you decrement before printing). I guess the trampolines are a funny little loop that does the printing.

(I've never actually written any Befunge though.)

Pietu1998

@MartinBüttner Yup, and as a bonus I use a turn-right to (ab)use the | I put in the data (shift by 5 isn't just random). It first west, turns north to hit the |, changes direction to either north (wraps) or south, and then turns again to east or west. The trampolines are a way to do two-way code (R#LR#LR#L... does LLL when moving left and RRR when right).

Martin Büttner

ah, neat

Rainbolt

I love how spiteful this code comment is: "// [CustomerNameHere] wishes for distinguished name to not be distinguishing, so we will intentionally ignore it."

Nathan Merrill

22:20

Hey, is there some way I can write some javascript code that will run across multiple pages?

(basically creating a macro that will hit several pages)

Peter Taylor

Probably, if you use Node.js.

Peter Taylor

22:42

I'm going to be travelling for a few days, so if you don't see me around then don't worry that I've abandoned the site (or break out the champagne :P ).

PhiNotPi

Okay, I wrote a script to open PPCG once every day.

Fanatic badge here I come.

Alex A.

@PhiNotPi: I had toyed with the idea of doing that, but I decided I'd rather just visit the page every day if I can. I'd be interested to hear if your script does end up getting you the badge.

@PeterTaylor: Have a great time traveling!

PhiNotPi

Some backstory: I'm already at 66 days, but I'm going on a vacation next week and might not have internet access.

randomra

@PhiNotPi Writing that script actually proves that you are a fanatic. :D

Doorknob

4

Q: Create a Fanatic bot for Stack Exchange sites

Your challenge today is to cheat at badges! You will build a bot that will connect to a Stack Exchange site, log in as you, visit the /questions page, visit a question, and then visit 9 other questions in the "related" sidebar (because that seems sufficient to count as "activity," and I need to ...

code-golf

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