Jelly Hypertraining

« first day (26 days earlier) ← previous day next day → last day (2343 days later) »

user165474

3:17 AM

Anyone here?

user165474

@EriktheOutgolfer @LeakyNun

user165474

Challenge Idea: ZIP without using built-ins for zipping/transposing

user165474

Input is a rectangular matrix

user165474

Output is that matrix transposed, without using any zip built-ins

user165474

12:18 PM

Turns out to be a bit trickier than I thought. I have another challenge idea:

user165474

R without builtins for range. Should be able to be used like a regular monad.

Erik the Outgolfer

@HyperNeutrino can do it in 2 bytes

user165474

Oh.

Erik the Outgolfer

and it does work as a regular monad indeed

user165474

??? hm

Erik the Outgolfer

12:20 PM

well it uses undocumented behavior

user165474

I wouldn't be able to figure it out then

user165474

CHALLENGE: Difficulty EASY: With input x give a list of x 1s.

user165474

(without using list repetition)

user165474

I have a 3-byte solution but you might be able to do better.

Erik the Outgolfer

12:24 PM

may I assume x > 0?

user165474

Sure.

Erik the Outgolfer

should it work as a monad? because otherwise I can do it in 2 bytes

user165474

It doesn't have to.

Erik the Outgolfer

2 bytes then

user165474

nice

Erik the Outgolfer

12:26 PM

actually 1ẋ is still 2 bytes...

...although that uses list repetition

link to your 3-byte solution please?

user165474

spoiler

Erik the Outgolfer

my solution is totally different

again undocumented behavior though

user165474

link please?

Erik the Outgolfer

I want you to find the range (should work as a monad) and this yourself first

rn it seems you're fast-quitting that's why I say this

user165474

12:30 PM

Ah okay.

user165474

I'll try more then. It's just that I don't know the undocumented behaviour to expect :I

Erik the Outgolfer

I mostly learn undocumented behavior by looking at others' (mainly Dennis's) answers

user165474

Ah. Okay.

user165474

Can you give me a hint as to what sort of undocumented behaviour occurs?

Erik the Outgolfer

for the range, try to look for quicks that wouldn't make sense for single integers

then, filter to those which apply to monads

user165474

12:33 PM

Ah okay.

Erik the Outgolfer

that should be a starting point

user165474

neither reduce would make sense (I'm just listing some here)

user165474

product table

user165474

map

user165474

sort

user165474

12:34 PM

filter

user165474

@EriktheOutgolfer 2 bytes

Erik the Outgolfer

see? you didn't need a spoiler after all :)

user165474

ok now for the 1s list thingy

Erik the Outgolfer

first of all you must assume x > 0 (something that your 3-byte solution doesn't do)

second, avoid x and ẋ entirely

user165474

12:41 PM

Okay. (Well second one is obvious because I said no list repetitions)

Erik the Outgolfer

third, you shouldn't be looking for a quick

user165474

okay

Erik the Outgolfer

@HyperNeutrino I emphasized the second so that you avoid the grand temptation

user165474

Ah okay. :P

Erik the Outgolfer

12:43 PM

@HyperNeutrino I figured out a 2-byte solution where you don't need to assume x > 0

so now you shouldn't either :P

user165474

Ah. Nice.

user165474

Erik the Outgolfer

still no quick

user165474

2 bytes

Erik the Outgolfer

exactly

user165474

12:44 PM

yay

Erik the Outgolfer

conclusion: avoid the spoiler as much as you can

user165474

Yes :P Typically I learn more this way actually.

Erik the Outgolfer

yes that's why. using the spoiler is like trying to memorize certain stuff when studying without necessarily understanding what's going on, and when asked to explain what a part does or what a slightly modified snippet does, you go like :O WTF I don't even...:(

user165474

Yeah true. :P

user165474

Also learning system idea (if you aren't already doing this :P): have a test to advance levels; for example, 1 -> 2 do stuff like the right isoceles triangle challenge or maybe easier/harder

Erik the Outgolfer

12:49 PM

I'm trying to do it that's why levels exist

user165474

Ah okay. :P

Erik the Outgolfer

3:47 PM

Q: Trithagorean Triples

A Pythagorean Triple is an integer solution to the equation: A Trithagorean triple is and integer solution to the equation: Where Δn finds the nth triangular number. All Trithagorean triples are also solutions to the equation: Task Given a positive integer c, output all the pairs of po...

@ComradeSparklePony @HyperNeutrino @LeakyNun

(avoid my answer!)

my answer is 16 bytes fyi

2 hours later…

Erik the Outgolfer

5:36 PM

hint: now the answer is 12 bytes

but it's not at all trivial

Q: Find an Unrelated Number

Given 2 non-negative integers as input, output a non-negative integer that cannot be created through any mathematical operators on the 2 inputs. For example, given inputs 2 and 3, 6, 0, 5, 1, 9, 8, 23, 2 are all invalid outputs. Operations that must be taken into account are: Addition (...