Code Golf Stack Exchange Newsletter – Monday, October 31, 2022

Top new questions this week:

Looking back at all the things I said …

The look-say sequence is a sequence of lists of numbers where each element is the previous element with run length encoding. Run length encoding is the process of grouping together like elements and …

code-golf sequence

asked by Grain Ghost Score of 27 answered by CursorCoercer Score of 7

Increment, decrement, undo, peek

Write a program or function (hereafter “function”) that returns or prints the source code of four new functions: Increment, decrement, undo, and peek. The initial function contains an …

code-golf number code-generation function

asked by Jordan Score of 24 answered by att Score of 8

Is this series of quotes valid Python?

Python string parsing has quite a few edge cases. This is a string: “a” Putting 2 strings immediately after each other implicitly concatenates them, so …

code-golf string decision-problem python

asked by mousetail Score of 23 answered by loopy walt Score of 8

Tic, Tac, stub your Toe

Find the max number of Xs you can fit onto a rectangular tic-tac-toe board of length l and height h without ever having 3 consecutive Xs in a row diagonally, horizontally, or vertically. This is a …

code-golf binary-matrix tic-tac-toe

asked by JohnBGoode Score of 21 answered by alephalpha Score of 2

Enumerate the rationals

The cardinality of the set \$\mathbb Q\$ of rational numbers is known to be exactly the same as that of the set \$\mathbb Z\$ of integers. This means that it is possible to construct a bijection …

code-golf sequence rational-numbers open-ended-function

asked by att Score of 18 answered by Bubbler Score of 5

Length of Binary as Base 10 [OEIS A242347]

Computers like binary. Humans like base 10. Assuming users are humans, why not find the best of both worlds? Your task is to find the first n terms in the sequence …

code-golf math sequence

asked by Pacmanboss256 Score of 16 answered by Kirill L. Score of 7

Remove the last 'n' occurences of a substring from a string

Given a string and a substring and a positive integer n. Remove the n occurences of a substring from the end of the originally …

code-golf string

asked by anoman Score of 15 answered by JvdV Score of 10

Greatest hits from previous weeks:

Paint Starry Night, objectively, in 1kB of code

Note: a 1000 point bounty is still available for this challenge, which I will create and award if anyone takes the top score without using built-in compression. Below is a …

code-challenge graphical-output compression

asked by N. Virgo Score of 256 answered by Anders Kaseorg Score of 133

High throughput Fizz Buzz

Fizz Buzz is a common challenge given during interviews. The challenge goes something like this: Write a program that prints the numbers from 1 to n. If a number is divisible by 3, write Fizz instead….

fastest-code fizzbuzz

asked by Omer Tuchfeld Score of 295 answered by ais523 – high effort answers Score of 461

Programming Languages Through The Years

In this challenge, users will take turns completeing three fairly simple coding tasks in programming languages that are allowed to be progressively older. The first answer must use a programming …

popularity-contest math ascii-art hello-world answer-chaining

asked by Calvin's Hobbies Score of 174 answered by swish Score of 181

Shortest code to produce infinite output

Write the shortest code you can that produces an infinite output. That’s all. You code will only be disqualified if it stops producing output at some point. As always in code golf, the shortest code …

code-golf

asked by tbodt Score of 143 answered by marinus Score of 232

Create a simple 2048 game clone

2048 is an incredibly fun and addictive game in which the goal is to create a tile with 2048 on it. Here’s a short description of the game: Pressing an arrow key will slide all the blocks in the …

code-golf game sliding-puzzle

asked by Doorknob Score of 56 answered by Adám Score of 10

Build me a brick wall!

Challenge I need help building a brick wall! Throw together some code for me using no input and produce the following output wall shown below: …

code-golf string ascii-art kolmogorov-complexity

asked by Dylan Score of 76 answered by marinus Score of 48

Smallest python script to print even numbers 0 to 100

I’m work on a problem which I set myself for fun, which is to create a python script which prints the even numbers from 0 to 100. The challenge is to make the script as small as possible. This is what …

code-golf tips python

asked by Benedict Lewis Score of 11 answered by feersum Score of 40