Linked Questions

168
votes
70answers
24k views

How high can you count?

Challenge: Your task is to write as many programs / functions / snippets as you can, where each one outputs / prints / returns an integer. The first program must output the integer ...
165
votes
163answers
55k views

Don't google "google"

We all know that if you google the word "google" it will break the internet. Your task is to create a function that accepts one string and returns its length, in the fewest possible Unicode ...
130
votes
279answers
34k views

Fibonacci function or sequence

The Fibonacci sequence is a sequence of numbers, where every number in the sequence is the sum of the two numbers preceding it. The first two numbers in the sequence are both 1. Here are the first ...
114
votes
95answers
17k views

Loading... Forever

Your challenge is to make an infinite loading screen, that looks like this: Or, to be more specific: Take no input. Output Loading..., with a trailing space, but ...
95
votes
40answers
10k views

Tips for golfing in <all languages>

The aim of this post is to gather all the golfing tips that can be easily applied to <all languages> rather than a specific one. Only post answers that its ...
93
votes
54answers
14k views

Make a "Ceeeeeeee" program

Once I wrote a JavaScript program that would take as input a string and a character and would remove all characters except for the first one and the character given as input, one by one. For example, ...
72
votes
44answers
8k views

Happy Birthday V!

Thanks to @KritixiLithos for helping me out with this challenge! V is a programming language that I wrote so that I could use and extend vim for code-golf challenges. The very first commit was on ...
61
votes
15answers
12k views

I HATE spaces in file names

It is simple. I cannot stand when people use spaces when naming files. It sometimes wrecks console commands and makes the output of ls ugly. The challenge is to write a program (only ascii characters)...
54
votes
8answers
10k views

Golf a number bigger than TREE(3)

The function TREE(k) gives the length of the longest sequence of trees T1, T2, ... where each vertex is labelled with one of k colours, the tree Ti has at most i vertices, and no tree is a minor of ...
50
votes
40answers
2k views

Appending String Lengths

Challenge: Given a string s on the characters a-z, A-<...
48
votes
37answers
10k views

Facey McFaceface

Anyone remember Boaty? You could totally make any old word, right? Write a function to turn a string into Somethingy McSomethingface. It should accept one string as input. Ignore the case of the ...
46
votes
30answers
3k views

Sever-sort an array

Challenge Given a non-empty array of integers, e.g.: [5, 2, 7, 6, 4, 1, 3] First sever it into arrays where no item is larger than the previous (i.e. non-...
46
votes
24answers
4k views

The sea in your terminal

Background Summer is well over in the Northern Hemisphere, and a lot of us miss the sun, the beaches, the waves of the ocean... This challenge aims at cheering them up by reminding them of the sea. ...
43
votes
39answers
4k views

Extendify the ASCII Sun

Write a program that takes in (via STDIN/command line) a non-negative integer N. When N is 0, your program should print O (that's capital Oh, not zero). When N is 1,...
40
votes
40answers
5k views

Output the qwerty keyboard

Given a character, output (to the screen) the entire qwerty keyboard layout (with spaces and newlines) that follows the character. The examples make it clear. Input 1 ...

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