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Japt v1.4.5 -!, 8 bytes à ËryÃa1 Try it or run all test cases à ËryÃa1 :Implicit input of array à :Combinations (with the original array first) Ë :Map r ...
Consider a type of hexadecimal colour code that supports shorthand for both greyscale and colour: A 6 digit code is interpreted as 2 digits for red, followed by 2 for green, then 2 for blue. A ...
x86-64 machine code, 32 bytes A4 FF CA 6A 06 58 F6 F2 50 3C 03 59 51 74 08 AC F3 AA FF CA 75 F5 F3 66 AD 66 F3 AB 58 B0 07 C3 Try it online! Following the standard calling convention for Unix-...
BQN, 32 bytes (']'∾˜'['∾@+45+50↑79⥊˜·⌊×⟜50÷⊢)´ A tacit function. A pity, I had to add the parenthesis so I can fold the list of values that represent the fraction. Otherwise, assuming left and ...
Lean 4, 103 100 95 83 bytes def h:=λi=>if i<16then s!"{"0123456789ABCDEF".get ⟨i⟩}"else h (i/16)++h (i%16) Try it online! I actually am not sure how this even works, lol. I had thought...
Taxi, 183 bytes Go to Writer's Depot:w 1 r 3 l 2 l."Hello, World!"is waiting at Writer's Depot.Pickup a passenger going to Post Office.Go to Post Office:n 1 r 2 r 1 l.Go to Taxi Garage:s 1 l 1 l 2...
On main Codidact Meta there was a request for Unique favicons for each site. This has had a positive response and no objections (the nearest is one answer that says it should be opt in per communit...
The process to create a small icon from a big one, is to not just reduce its resolution by a standard downsample, but to recreate the icon from scratch with gradually fewer details. As your downsam...
Lean 4, 115 109 104 89 bytes Note: had to update bytecount to take into account non-printable characters. For anyone who isn't familiar with Lean, it's basically an interactive theorem prover t...
Japt, 12 bytes Outputs an empty array if no solution is possible. Íà5 â fÈx ¶V Try it Íà5 â fÈx ¶V :Implicit input of array U & target integer V Í :Sort U à5 ...
Python 3, 48 bytes def f(n,d):return f"[{(50*n+d//2)//d*'|':-<50}]" Try it online!
TI-BASIC, 23 bytes Like lyxal's answer, this program exits immediately, so nothing after the Stop is executed. The program Stop GarbageCollectDetectAsymOffDispGraphiconj(BLACKClrfHomenormalpdf(...
Stuck, 0 bytes That's it. An empty program in Stuck prints "Hello, World!". It's literally hardcoded in the interpreter.
C (gcc), 88 bytes char a[53]={91},*p=a+1,i;f(n,d){for(;i<50;)p[i++]=1.*n/d<=i/50.?45:124;p[i]=93;puts(a);} Try it online! There's two approaches to this in C that I came up with - eith...
Some additional cosiderations on using the sandbox: First, a migration mechanism might encourage good behaviour, for example by migration being only possible if the post has a minimal score, and/o...
We have many questions about how to golf in a specific programming language. These result in tips that apply only to that language or closely related languages. What advice do you have on golfing ...
How should I format my answer so that it works correctly with the automated leaderboard that shows under a challenge? What is the required format? How much flexibility is there? Once this ...
Pyth, 16 bytes .^RtJ^2yTyJ%2S97 Try it online! This solution uses Euler's formula, which states that if a is coprime to m, a^(phi(m)-1) = a^-1 mod m where phi(m) is the totient function, t...
$N$ vessels initially contain $3$ stones each. What is the probability of having at least $3$ stones in the first vessel after moving a uniformly random selection from the first vessel to the secon...
In this challenge you will take an Irish word and a personal pronoun and create the possessive pronoun construction combining the two. For example sé, madra becomes a mhadra. Translated to English...
Python, 344 bytes 534 bytes: This is not golfed in any way. But it's the current winner! def validate_roman_numeral(candidate): invalid_strings = ["CCCC", "CCD", "CCM", "CDC", "CMC", "CMD",...
The Universal Crossword has a set of guidelines for crossword puzzle submissions. In this challenge we are going to be concerned with their rules for hidden word themes. A hidden word clue consis...
The leaderboard that shows below a code golf challenge can either sort the answers to show the winner for each language separately (if "Group by language" is ticked) or it can show all the answers ...
