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1 vote

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Word stays a word after taking away a letter This is a repost of this challenge Challenge There is an old, popular riddle: Find an English word with 8 letters that, taken away one letter, creates a ...
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0 votes

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Pairs at every distance Given a list x of 2 or more integers, output whether there exists a pair of equal integers in x ...
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1 vote

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Bloons TD 6 Upgrade Paths code-golf number kolmogorov-complexity The monkeys need help organizing their defense and have asked you, Benjamin the code monkey, to create a program that will list all ...
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0 votes

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Photosynthesis king-of-the-hill python Flavor text You, a algae spore, have recently evolved the ability to walk. However, 3 others have just done the same thing. Can you use this new ability to your ...
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2 votes

Do we delete invalid tips?

Yes if the answer is unfixable, because deleting unfixable, objectively incorrect, answers to questions would be beneficial even on Stack Overflow (Note: this post is only about answers that are ...
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  • 11
0 votes

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code-golfmatharithmeticnumber Implement Binary Exponentiation Background In programming, there is a recursive algorithm called binary exponentiation, which allows for large integer powers to be ...
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7 votes

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Compress Jelly's code page code-golf kolmogorov-complexity In this challenge, you'll print out the SBCS of Jelly, a popular golfing language. Its code page looks like this: _0 _1 _2 _3 _4 _5 _6 _7 ...
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4 votes

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ro1000an nu1000era50 en100o501ng
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2 votes

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Is it shuffled FizzBuzz? A twin of this. FizzBuzz is where a range of positive integers is taken, and numbers divisible by 3 are replaced with "Fizz", divisible by 5 with "Buzz" ...
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2 votes

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Fix my FizzBuzz FizzBuzz is where a range of positive integers is taken, and numbers divisible by 3 are replaced with "Fizz", divisible by 5 with "Buzz" and divisible by 15 with &...
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2 votes

Do we delete invalid tips?

Yes, demonstrably invalid tips should be deleted Note the distinction between a "valid, but not very good" tip and a "demonstrably invalid" tip. The first is what downvotes are for,...
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4 votes

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Not-Roman-Numeral Addition Tags: code-golfmathnumberroman-numerals Write the shortest program or function that mimics the addition in this XKCD strip: Input Two positive decimal integers containing ...
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2 votes

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Which R version is it? It's Peanuts! code-golfrstring This challenge will be based on an R language trivia: every release is named and it's a reference to Peanuts comic strips (see here and here). ...
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2 votes

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Parse this handy graph format code-golf parsing graph-theory There's a great number of ways to represent directed graphs like the following: Most representations are tailored towards being easy to ...
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0 votes

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Perform division for fuzzy numbers Objective Given two positive "fuzzy" numbers (as defined below), perform division between them. Definition Here, a fuzzy number consists of two integers: \$...
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Language nominations for the "Learn You a Lang for Great Good" chat event

Retina A regex-based lang. Sometimes competitive with the golfiest langs-- what Retina does well, it does really well. Plus, solving problems with regex and string-rewriting is always fun! Made by ...
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  • 1,921
0 votes

What's the difference between [source-layout] and [restricted-source]?

Thoughts on how to objectively categorise this sort of challenge After thinking about this for a while, I think there are three main sorts of source-dependent challenges that we have: There is a ...
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  • 11
2 votes

We should reverse [reverse-engineering]

Could be useful for programming-puzzles Specifically, I've been thinking about ones that would require reverse-engineering how a language works in order to write a certain program in it. Not sure how ...
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2 votes

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Nest some addition code-golf Lambda calculus is a system of computation based entirely on functions: everything is a function, which can act on other functions. It is commonly written with ...
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6 votes

What's the difference between [source-layout] and [restricted-source]?

First things first here's how I currently interpret these tags: Restricted source restricted-source is pretty simple, there is black box function1 which can take the source of a program and "...
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12 votes
Accepted

We should reverse [reverse-engineering]

Agreed, delete reverse-engineering I think you make a solid case that the tag is currently not worth keeping: it is on a small number of questions, some of which are closed; the tag wiki info provides ...
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6 votes

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Extract the word containing this index
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2 votes

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Flood fill by distance
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3 votes

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backwardS_hybriD-snakE_kebaB-cameL_case
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1 vote

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Is this a strange pond?
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2 votes

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Draw the Progress Pride flag code-golfgraphical-outputkolmogorov-complexity Challenge Create the image of a progress pride flag. Output Dimensions Rules Your program must (obviously) create the ...
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  • 229
2 votes

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Iterative Smallest Complement
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5 votes

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Enumerate the Microwave Timer code-golf Related Sometimes when I use my microwave, I do a little trolling and enter times such as 2:90 instead of ...
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1 vote

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Goroawase Numeric Substitution code-golf number Goroawase numeric substitution is a common form of Japanese wordplay where homophonous words are associated with a given series of numbers to associate ...
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  • 1,851
0 votes

Language nominations for the "Learn You a Lang for Great Good" chat event

Egison Egison is a functional programming language featuring its expressive pattern-matching facility. Its pattern matching gives me a feeling of Mathematica. It can even matches against an infinite ...
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1 vote

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pattern-matching grid code-golf turn-my-swag-on Is This Loss? Given two shapes A and B in ASCII-art, determine if ...
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2 votes

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The Unaverageables
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6 votes

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Create Bernard from Desmos
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2 votes

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How far from binary?
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2 votes

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Seeing the queen's lasers In chess, the queen piece can see arbitrarily far in each cardinal and intercardinal direction. What does this mean? Well, I'll show you with an ASCII drawing: ...
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4 votes

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Extend a matrix in all directions
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2 votes

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Interpret BigTalk Talk is a language which takes a single bit of input and has four commands: 00 If the accumulator is 0, set the accumulator to 0. ...
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-1 votes

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The prime frog 🐸 -- Integrated. From the original question, we make the following changes: The "prime frog" is a strange animal that jumps between integers*, until it arrives on 3 or 19... ...
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0 votes

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Don't like the middles There will be no winner on these question. Just for the fun of the challenge. Your job will be to output every sequence of each 10 numbers, alternating between the evens and ...
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1 vote

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Push some numbers Given a list of integers, apply the following rules to each element: If n is even, move it to the back. If n is odd, move it to the front. Zero is considered even. You may assume ...
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2 votes

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Find the walls!
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3 votes

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Is it a valid list?
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2 votes

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Enumerate all pure sets
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1 vote

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Truncate words in a sentence
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1 vote

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Flatten from the inside out Say we have a ragged list [ [1, 2], [3, [4, 5] ], ] And we want to flatten it by a layer, decreasing its depth by 1. We ...
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0 votes

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Compute the cophenetic correlation coefficient Meta question at the end. Background The cophenetic correlation coefficient is used in bioinformatic to measure how close the distances of a tree are to ...
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4 votes

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Universal Unicode Clock
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4 votes

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Give f and g that sometimes commute
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2 votes

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Is it a heapable sequence?
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4 votes

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Iteratively delete a list
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