Yo Dawg I Heard You Like Code Golf code-golf metagolf kolmogorov-complexity Write a program that outputs another program that outputs another program that… etc. as many iterations as you want. The final program's output should complete the question title: So I put a code golf inside your...

I call this sequence "the Jesus sequence", because it is the sum of mod.</pun> For this sequence, you take all the positive integers m less than the input n, and take the sum of n modulo each m. In other words: For example, take the term 14: 14 % 1 = 0 14 % 2 = 0 14 % 3 = 2 14 % 4 = 2 14 % 5...

Peter Piper Challenge Peter Piper is a classic English/American nursery rhyme. Create a program in the least amount of bytes possible, that outputs the following. Peter Piper picked a peck of pickled peppers. A peck of pickled peppers Peter Piper picked. If Peter Piper picked a peck of pickle...

This challenge posed an algorithm for encoding an integer n as another integer r. What follows is a succinct explanation of that algorithm, using an n=60 as an example. The original algorithm First, we encode the number as a string of brackets. If n = 1, return an empty string. Otherwise, we...

This is based on how my company deals with the monitoring of the working times for every employee. Each one of us has a card that can be passed in front of a sensor, so that a clock registers the times at which the employees check in or out the office. Every time register is linked to a code: C...

I'm trying to think of an algorithm that gives out all possible solutions to a japanese sums puzzle. So Imagine a 3x3 grid. You're given the total sum of all rows and all columns. All numbers in the grid can be any number between 1 to 9, and numbers could repeat. For example, suppose you are su...

Parse a list of signed unary numbers code-golf string parsing Unary numbers typically only represent nonnegative integers, but we can extend them to represent all integers as follows: A positive integer N is represented as N 1's: 5 -> 11111 A negative integer -N is represented as a 0 followed...

Make an audio file that says “Hello” (when played), then measure the size of this file, and output N. N is number of “Hello” files if it was plain text instead of audio. In other words, size of myfile.wav (or any other audio extensions) divided by the size of myfile.txt equals to output=N. Cont...

The characteristic polynomial of a square matrix A is defined as the polynomial pA(x) = det(Ix-A) where I is the identity matrix and det the determinant. Note that this definition always gives us a monic polynomial such that the solution is unique. Your task for this challenge is to compute the ...

Given 4 points on the 2D planes A, B, C, D, calculate the area of the intersection region of the triangles OAB and OCD, where O is the center of the plane, having coordinate (0, 0). Algorithms that runs in constant time complexity (in terms of arithmetic operations) are encouraged, but not force...

Recently there was a challenge and the OP immediately posted a community wiki answer which would serve the purpose of combining trivial answers. Citing the answer: This community answer is for collecting answers in languages with built-in do most of the works, according to this proposal. Ho...

Dice Cricket is a game I was introduced to as a child and have used as a way to pass time for years since. I couldn't find a Wikipedia page so I'll explain the rules below Dice Cricket Rules Premise Dice Cricket is a game similar to scoring a game of cricket as you watch it but rather than wat...

Transpose the Notes! Your task: given a series of musical notes, transpose them up or down n semitones. In music, there are 12 different notes: A, A#, B, C, C#, D, D#, E, F, F#, G, G# after which, the cycle repeats. Each note going left is one semitone higher then the previous. For example, ...