Add TIO link to messages! code-golf internet sandbox-add-more-tags-here It's annoying when you have to search for a language homepage, get its link, and add it to your SE comment/answer, right? Let's write a script to do that for you! Challenge TODO write challenge Rules Case sensitive or...

XOR sort an array Given a key, and an array of strings, shuffle the array so that it is sorted when each element is XOR'd with the key. XOR'ing two strings To XOR a string by a key, XOR each of the character values of the string by its pair in the key, assuming that the key repeats forever. Fo...

Sometimes when requiring an input in JavaScript, we need an array and a number as input. Usual function input method is (a,b)=>a[b] or a=>b=>a[b], but can I require to input the array with extra property a=[1,2,3];a.p=2;f(a) so function be like a=>a[a.p] ? If allowed, does it have extra score?

Count the number of palindromes of length S you can build using an alphabet of size N such that any prefix of size between 2 and S-1 is not a palindrome.

Many PHP answers contain fgets(STDIN) as this takes input, which inmo is fine. Many many other programs just assume the input is automagically put in a variable x and work with x, counting as a single byte, althogh the input has not really been taken. Which way is best? Another thing is, many...

I would consider the word "fuck" to be non-profane for the purposes of this puzzle. Where I got Smallfuck from: So, some of you will know what Brainfuck is. It is an esoteric programming language that operated on a series of bits, each initialized to 0, and edited by the programming language sy...

Background The nuclear industry has term, SCRAM, used to describe a quick shutdown of the reactor. There's a fun myth that it stands for "Safety Control Rod Ax Man," the role which served to shut down the Chicago Pile if it got too hot by literally cutting a rope with an ax (although this was d...

3D ASCII Block Building code-golf ascii-art Challenge Write a program that takes an 11x11 array of integers, and constructs a 3D ASCII block building, where each value in the array represents the height of a column of blocks at the coordinates matching the array position. A negative height is ...

Your task is to print the text Good morning, Green orb!, with every character repeated in place as many times as the most frequent byte in your source (the mode). For example if your source was print p Since p appears twice and every other byte appears once you would need to print GGoooodd ...