The Nineteenth Byte

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12:01 AM

Hehe, see what I did with the title? Anyways... Your job is to create a sudoku solver that accepts input in Morse code and creates output in Morse code. Here's the Morse code numbers for reference: 0: ----- 1: .---- 2: ..--- 3: ...-- 4: ....- 5: ..... 6: -.... 7: --... 8: ---.. 9: ---...

DJMcMayhem

12:28 AM

@Mego Noperz.

@ASCII-only Printf is fine with it

Unfortunately, a type cast won't work in this case since I have it in a templated function, that can take various format strings and floats

New Sandboxed Posts

12:54 AM

A: Sandbox for Proposed Challenges

Draw these shapes Given: a width, a height, and a set of sets of points. Output: An image where each set of points is connected and colored in (like a shape). Each shape must be a different color from all of the other shapes. Examples //the code here has nothing to do with the actual chall...

Pavel

I'm trying to find the code snippet where you have a C program that's char *main = "some_stuff_that_makes_this_print_hw", can anyone help

Ørjan Johansen

1:32 AM

Hm I think we have that in a bot on #esoteric.

MilkyWay90

@ØrjanJohansen you mean on IRC

Ørjan Johansen

Yeah

@Pavel const char main[] = "AXAYAZA[A\\ATX-pppp-0```- ///P^VTXH10XP4>40PZ414>P_\x0f\x05XATASARAQAP\xc3Hello, world!\n";

The bot also has

const short main[] = {18517,58761,49201,49801,49407,51081,3816,0,18432,27749,28524,8236,28535,27762,8‌548,24074,3762,1295,15536,-207,1295};

I didn't test them to see if they've bitrotted.

Pavel

1:48 AM

Both segfault :/

Ørjan Johansen

Oops now I did and the string one didn't work.

The other worked on the bot.

This is obviously not portable code :P

1 hour later…

ASCII-only

3:08 AM

anyone know what this does?

i'm guessing former is actual class, latter is JButton? so returns true only if it's the actual class, not a subclass?

@DJMcMayhem yeah because that's C's printf... it's very hacky

@Pavel ez, just decompile

ASCII-only

3:26 AM

wait... you need the string too :/

almost

(see this)

:/ in wrong section

oh well

4 hours later…

Fatalize

7:41 AM

@PhiNotPi Grats. My Ph.D. supervisor was from there (a long long time ago)

6 hours later…

New Main Posts

1:25 PM

Q: The Digit Triangles

Challenge: Input: A positive integer \$n\$ Output: Create a list in the range \$[1,n]\$, and join it together to a string (i.e. \$n=13\$ would be the string 12345678910111213). Now we output a triangle using the prefixes or suffixes of this string, in one of the following four orientations ba...

code-golf ascii-art number integer

moonheart08

My math teacher wanted us to do prime factorization and show all the steps (tree of the factors)

So i just programmed the ti-84+ i was given to show me the steps.

Veskah

1:38 PM

The absolute madman

1 hour later…

moonheart08

2:45 PM

....and i wasted all that because i forgot how to use said factorization to solve for the square root

gg me

now i have to run off to tutorials next period for help haha

Fatalize

2:57 PM

After all this time developing Brachylog, I wanted to check how programming a non-guessing sudoku solver (the classical constraint logic programming problem) with it went. 34 bytes (not golfed) and 5 minutes of development is all it takes

moonheart08

wew

@Fatalize what's Branchylog written in?

looks up

s/branchy/brachy/

Fatalize

@moonheart08 Prolog

moonheart08

i need to bother learning prolog properly sooner or later

could give me some nice insights

Adám

3:14 PM

@Fatalize So this just sets the constraints for a solved puzzle, and Prolog does the rest?

Fatalize

@Adám Pretty much

`{0∧9≥ℕ₁|}ᵐ²` -> transforms the 0s into unknown variables between 1 and 9
`.≠ᵐ\≠ᵐ` -> all rows and all columns have different elements
`ḍ₃ḍ₃ᵐ²zᵐcᵐ²c≠ᵐ` -> the 3*3 blocks have different elements
`∧.≜` -> find values for the unknown variables that fit these constraints

@Adám (still waiting for you to learn it :p)

Adám

@Fatalize What does the performance look like for very hard sudokus?

Fatalize

@Adám The one in the test case was evaluated as "hard" by a sudoku solver and it solves under a second so I guess it's ok

Considering I didn't write one byte of code explaining how to actually solve a sudoku

Adám

@Fatalize google "worlds hardest sudoku"

ASCII-only

@moonheart08 halve the exponents of all prime factors :|

Fatalize

3:22 PM

@Adám 0.5 seconds on TIO

Answer seems correct

ASCII-only

@moonheart08 pls. Not sure if it's given me insights though. I guess I haven't really done logic programming with it yet

Fatalize

@Adám I'm sure performance would get way worse with matrices bigger than 9×9

ASCII-only

@Fatalize try with this maybe

@moonheart08 10/10 name, branchy log :P

Fatalize

@ASCII-only that one actually took 3.8 seconds, interestingly enough

ASCII-only

relevant

Fatalize

3:31 PM

Congratulations! You have completed the Sudoku

Yeah it found the right answer

ASCII-only

Kinda funny how some of these people spend months working on a solver then you just sit down for 5 minutes and have a solver that solves even the hardest known puzzle quickly enough

But I guess Prolog itself is pretty heavily optimized

2 hours later…

New Sandboxed Posts

5:31 PM

A: Sandbox for Proposed Challenges

Japanese Multiplication code-golf ascii-art math There's a visual method for multiplication that is taught to Japanese schoolchildren [citation needed] that uses lines and crossings to get the answer. Image Source Your task is to implement this in ASCII art. You will be given two numbers ...

Veskah

6:18 PM

@ASCII-only It does have Pro in the name

Poke

6:57 PM

@Veskah that's my argument for why provolone cheese is the best

AdmBorkBork

7:47 PM

@Poke Please. Muenster cheese is obviously best cheese.

DJMcMayhem

Y'all have obviously never had Gouda

Veskah

Dang, now I want some cheese and crackers

AdmBorkBork

Muenster and peanut butter sandwich. Nom.

Veskah

Sounds odd but might be bretty gud

J. Sallé

Parmesan is the best cheese, naturally. And every variation of it too.

New Meta Posts

8:48 PM

Q: What color is your web page?

A business owner wants to create a website home page, whose background color dynamically and linearly changes with the time of the day based upon the following: Midnight: Black Between Midnight and Noon: lightening grey scale between black and white Noon: White Between Noon and Midnight: dark...

discussion code-challenge javascript

Pavel

9:17 PM

Gonna unlock site analytics soon :D

@J.Sallé Saying Parmesan is the best cheese is like saying Jelly is the best programming language. Parmesan is the best cheese for it's use-case (sprinkling onto spaghetti and other kinds of italian food) but I wouldn't say it functions as well as a general cheese

DJMcMayhem

@Pavel Wait, so you're saying you don't sprinkle jelly onto spaghetti and other Italian foods?

I guess I'm the weird one

Pavel

@DJMcMayhem Now hold on, where in my message does it say that