@Adám Any golf suggestions?

@J.Sallé tio.run/##SyzI0U2pTMzJT///qG9qZv6jtgkG////…

I got to this, but that made me think that the answer is neither a function nor a program, but a REPL command

@dzaima oooh that's clever

I didn't think of using 6/

@J.Sallé how much memory are we allowed to use? ⍳6⍴16 might lead to a shorter solution

@ngn the challenge doesn't specify, the only constraint is that the program needs to be able to print all the codes in the range #000000 to #FFFFFF

@J.Sallé well, this works on my laptop: '#',(⎕D,⎕A)[↑,⍳6⍴16]

@ngn oh nice. I didn't realize ⍳6⍴16 would also generate ⍳2*24 numbers

@J.Sallé wait, i think i found an even shorter one :)

@ngn goddamnit I just finished posting that one lol

@J.Sallé i'm not sure if this is valid - it takes a long time and a lot of memory: ,(⎕d,6⍴⎕a)∘.,⍨⍣6⍕#

@ngn I don't think I can even understand that ⍨

the whole part after the parens that is

the challenge says "Write a program which generates and returns all 16,777,216 color variations within an array". if that array can be multidimensional, you could remove the leading ,

@J.Sallé it's an outer product of concatenation (∘.,) with swapped arguments (⍨) applied 6 times (⍣6) to '#' (⍕#)

@ngn aaaaaaaah now I got what the ⍣ is doing there

somehow I was seeing 6⍕# and being like 'wut'