You are piloting a spaceship, outfitted with an engine that can accelerate you at 1km/s^2 in the direction the ship is facing (you have very good inertial dampers). You also have thrusters which can rotate you 180 degrees in 1s. You see on your scanner another ship, and decide to rendezvous with...

Take the decimal number \$0.70710678\$. As a fraction, it'd be \$\frac{70710678}{100000000}\$, which simplifies to \$\frac{35355339}{50000000}\$. If you were to make the denominator \$1\$, the closest fraction is \$\frac{1}{1}\$. With \$2\$, it'd be \$\frac{1}{2}\$, and with \$3\$ it's \$\frac{2}...

This is a rip-off of a rip-off of a rip-off of a rip-off of a rip-off. Go upvote those! Your task, if you accept it, is to write a program/function that outputs/returns its input/args. The tricky part is that if I make your source code palindrome via duplicating reversed source code after the or...

Calculate longest Stack Exchange streak Inspired by The longest consecutive days streak Input The URL https://codegolf.stackexchange.com/users/daily-site-access/[user id] here the last number is your user ID (found in the URL of your profile) contains information about which days you visited the ...

This is alternate of a rip-off of a rip-off of a rip-off of a rip-off of a rip-off of a rip-off. Go upvote those! Your task, if you accept it, is to write a program/function that outputs/returns its input/args. But again, The tricky part is that if I rot-13 your source code, the output must be r...

I am a Pxem user; I have answered some in Pxem. Since tio.run does not provide Pxem, I am posting online demo, with my interpreter, like this. The problem is: code for the interpreter is long; so does the url. I have never been critized about that, but would I mind you if I keep submitting so?

(needs a title) code-golf decision-problem subsequence string Given two strings \$ A \$ and \$ B \$ and a positive integer \$ n \$, determine whether \$ B \$ is composed entirely of (possibly overlapping) strict substrings of \$ A \$ of a length of at least \$ n \$. Test cases n A ...

You are given a \$3\times3\$ square matrix where each cell is any digit between \$0\$ and \$9\$ except \$7\$. Your task is to figure out the minimum number of digits that must be replaced with \$7\$'s so that the sums of the digits in each row and each column are the same. NB: There is no constra...

Rotate brackets until they're balanced code-golf Take the string of brackets ]][][[. When you rotate it to the right once, you get []][][. If you rotate it again, you get [[]][]. All brackets in this string are balanced. The Task: Your program (or function) will be given a string of brackets, re...

Introduction I've always liked the idea of finding the most possible bang-for-your-buck squeezed out of a tiny chip, like the 6502. Of course, I'll need to start small. Filling the screen on 6502asm.com should be easy enough. Challenge Fill the entire program output screen on 6502asm.com with the...

cadaddadadaddddaddddddr (WIP) Create a function (or closest equivalent, or full program) that takes an list of some datatype (your choice) that may be nested, and returns something (WIP). Examples: Array , Accessor => Result =================================== [0,1,2], 'cdr' =>...

Not sure what in the world the 29th power is. Does anybody know what the 29th power is?

This fastest-code challenge is based partly on this MSE question and exists to extend some OEIS sequences, and create others. If I extend or create sequences based on this challenge, I'll link to this challenge so that folks can see where the values come from. If you'd like direct credit, include...