The Nineteenth Byte

Oh, didn't know that you can see deleted posts with enough rep.

A: Sandbox for Proposed Challenges

1:19 AM

@Doorknob That's so bad.

New Sandboxed Posts

Print All Provable Statements This might be a stretch to make into a challenge, but I think it can be done. The challenge will most likely be code-golf. I'm thinking about using 2D geometry as the basis. I will have to create a notation system for geometrical and logical statements that is go...

2 hours later…

aditsu

3:53 AM

@MartinBüttner I plan to make a new CJam release before 10 Apr, and include that operator

6 hours later…

9:38 AM

PPCG fans may be interested in this new contest

9:54 AM

@JoeZ. Is any of the 100000 test cases solvable?

3 hours later…

1:01 PM

@PeterTaylor That sounds like it would have made a great PPCG challenge. ;)

It's pretty interesting.

1:26 PM

I don't think 3-month time limits really work on this site.

1:37 PM

Time to start a 3-month-long brute-force?

Probably needs to be a bit more intelligent.

I guess I'll be interested in what the results are.

But I'll probably forget about it in three months.

A: Build a top-front-side puzzle solver

lol

Pyth, 0 bytes This program will - when run with any of the 100000 defined testcases - output the optimal configuration of blocks as a string of 64 ones and zeroes, and when this is impossible it will indicate this by printing nothing. This program can not be beaten, as it solves the optimal a...

Thought about doing the same thing, but Joe Z. will probably update the test cases in a bit.

@Jakube while implementing it I used a greedy algorithm that always adds the cube that's needed in the most overlapping rows, and otherwise just chooses a random one

my gut instinct says that's optimal but I'm not certain

1:55 PM

I just read a news article about night-vision eyedrops.

It felt slightly disturbing.

@orlp Haven't thought much about the optimization. I just took a list with 64 1s, and set all cubes to 0, if the correspondent bit on top, front or side is 0. Here already appear a lot of conflicts on all different test cases.

@PeterTaylor Ah I didn't read all of it, just skimmed the first bit where the task is explained.

@PhiNotPi heh I saw that too

it is slightly worrying, but I think the most concerning part is that it's not properly researched yet. I'm pretty sure these kinds of body enhancement are the future (and not too distant either).

I'm very skeptic

they dropped a chemical on the surface of the eye

I don't see how that would increase the photosensitivity of the eye in any meaningful way

I don't know why it can't... but my point was less whether that particular experiment actually worked but more that stuff like this will work and happen in the future.

A: Sandbox for Proposed Challenges

if it affects the photoreceptor cells (and then it must affect the rods pretty much), then how did the chemical get there?

it was dropped on the surface of the eye

if the chemical is involved in some photosensitive chemical reaction, I'd expect the light it generates to be diffuse, and useless to the eye

@MartinBüttner that I agree with

I'm just annoyed with the virality of this particular 'experiment', while I strongly believe it's crackpot

1 hour later…

New Sandboxed Posts

3:23 PM

NetAttack KotH The internet has failed. DDoS attacks are now rampant and widespread. It is up to you to take control and repair the internet. Each bot will control 20 nodes in this network. Every node is either active or safe, has an owner, and has a strength, which starts at a random double...

3:53 PM

we got new tag badges today

(restricted-source)

4:41 PM

FYI, I've added the new output method for functions to the code golf tag wiki, so it's now officially a new default: functions may output via their arguments.

BrainSteel

5:04 PM

Cool! This was a game I used to play as a child and recently found online again. Pure nostalgia. Do you think it has potential (if modded) as a KOTH?

5:15 PM

I don't think it's a good game for KotH because it's so dependent on external randomness.

BrainSteel

Yeah, that was my primary concern with it. If both sides were to receive the same beans at each turn, and the locations of 'refugee' beans were more deterministic, could the problem be rectified?

If you tell them the next 100 beans that they'll receive, it becomes a case of who can do the deepest alpha-beta search within the time limit. If you tell them the next 1, you'll probably need to run each matchup hundreds of times to get a consistent ranking. And you can't find the optimal compromise until people have written a few answers.

BrainSteel

5:33 PM

That's a good point. I'll think about it.

4 hours later…

9:49 PM

@Jakube I seem to be getting a higher number of solvable cubes than you do

gist.github.com/orlp/35357a8a0110342cb039

is what I use to count cubes

10:34 PM

@orlp Damn, I think your correct. Your program says "00195" is solvable, my program disagrees. So I draw it manually and it is definitely solvable. I must have some error in the indices or something.

What?

@Jakube ?

Forgot about the leading zeros during the hexdigest to bin translation.

Now I fixed this and get 533 out of 100.000, but you get 551.

10:50 PM

damn I shouldn't have given you my code :P

now you'll just match me :P

without having to decipher my golfing