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Python 3, 34 bytes f=lambda x:[f(y)for y in range(x)] Try it online! -9 bytes thanks to Moshi Unfortunately, I cannot use Python sets, because sets are unhashable and thus cannot be put int...
APL (ngn/apl), 6 bytes {∇¨⍳⍵} Try it online! Dyalog APL and dzaima/APL appear to not give empty vectors for ⍳0, so I used ngn/APL. I don't know how to turn on boxing there, though, so there'...
BQN, 18 bytesSBCS {⊑(⊑𝕨⊸⍷)¨⊸/∾⟜𝕩¨↑𝕨} Run online! A direct translation of Razetime's APL solution (my attempted improvement ⊣∾{⊢´/𝕨⊸«⊸≡¨↑𝕩}↓⊢ turns out to be not at all correct). The BQN solut...
Sed -E, 25 bytes Takes second input, , comma, first input (inputs cannot contain , commas). s/^(.*)(.*),(.*)\1$/\3\2/
JavaScript (Node.js), 153 147 bytes -6 bytes thanks to Shaggy! a=>a.sort((x,y)=>g(x)-g(y),g=x=>"y gree br sc bla oc pe rub ol v f li go ch m cre c s ro a l ru g pu w p o b".split` `.find...
Brachylog, 16 bytes g₂;.z∋zbᵗ×ᵐ/ℤ↰|w Try it online! This is a function submission, which inputs n from the left and A from the right (as a list of two-element lists). Output is to standard out...
Japt, 3 bytes e¡g Try it e¡g :Implicit input of array U e :Is equal to ¡ :Map U g : First element of U
APL (Dyalog Unicode), 3 bytes ⍋≡⍒ Try it online! ⍋ computes the permutation vector that would sort the argument into ascending order ⍒ computes the permutation vector that would sort the ar...
Instead of the code-golf-tips tag, could we tag "Tips for golfing" questions with tips and code-golf instead? They can still be searched for, so I don't see a reason to make a special tag to repres...
C (gcc), 147 151 bytes #define L(X)X(+,a+b)X(-,a-b)X(*,a*b)X(/,b&&a/b)X(%,b&&a%b)X(^,pow(a,b)) #define M(o,d)printf("%s",d==c?#o" ":z++==5?".":""); z;s[99];f(a,b,c){L(M)} Tr...
[Rule 110] is a Turing complete cellular automaton. It is defined as follows: Take as initial value a sequence of symbols that's infinite to both sides, which consists only of two different symbol...
C (gcc), 133 131 bytes f(p,s){char*t="Hole in one\0Albatross\0Eagle\0Birdie\0Par\0Bogey\0Double bogey\0Triple bogey";for(--s?s+=5-p:0;s-=!*t++;);puts(t);} Saved two bytes thanks to m90 in the...
Ruby, 110 106 bytes Fixed capitalization and refactored for -4. ->p,s{d=s-p s<2&&"Hole in one"||%w[Albatross Eagle Birdie Par Bogey Double Triple][d+3]+(d>1?" bogey":"")} Att...
TIO? This community uses Try It Online (TIO) a lot, as do other golfing and programming sites. TIO doesn't host ads, but is some sort of partnership with them possible? What might that look like...
Task Given an IP address as a string, find its IP address class. For reference, here is a table: Class Leadingbits Numberof networks Addressesper network Total addressesin class Start...
Embed ESCR, 6 unique characters, 19 bytes [/ [*] [+ [*] [*]]] Each [] pair of brackets encloses an in-line function. The first token in a function is the function name, and subsequent tokens, if...
Ruby, 7 unique, 12 bytes $$.fdiv$$+$$ Ruby, 8 unique, 13 bytes: $$.fdiv $$+$$ Ruby, 9 unique, 22 bytes: "i".size.fdiv"ii".size Ruby, 9 unique, 24 bytes: Math::E./Math::E+Math::E
C (gcc), 8 7 unique cos(cos-cos)/(cos(cos-cos)-(-cos(cos-cos))) Try it online! -1 unique character thanks to @orthoplex
The task is to generate the text of Lewis Caroll's Jabberwocky. The text, quoted from Wikipedia, is as follows (I've replaced a non-ASCII character with ASCII, otherwise it's direct copy&paste...
RoadLang, 340 bytes wagwan my slime x is 0 rip dat bong till x bigger den 99 n dat x is x n 1 ayy bossman (x leftova 15) be 0 init bruv man say"FizzBuzz" yeah init bruv ayy bossman (x lef...
Challenge Given a date with day, month and year, calculate how old a person born on that day would be today. Input can be in any reasonable format(params, array, date object). Input will never b...
