Given a String consisting of only the characters 'H' and '-', Where 'H' represents houses with rain water dripping from it and '-' represents open spots to put a bucket to catch water. Return minimum number of buckets so that all houses have at least one bucket right next to it. Houses may share ...

Introduction This challenge was originally the "Among Us" challenge in the "Misc" category of YASCON CTF 2020. (The link includes an answer to that challenge. Click at your own risk.) You're given a lot of files, 1 of which is different from every other files. Your job is to find that 1 different...

Bytewise look-and-say sequence code-golf restricted-complexity Given this javascript code (Node.js), which outputs the look-and-say sequence indefinitely (assuming it doesn't crash): function nextTerm(x){ return x.replace(/(.)\1*/g,z=>z.length+z[0]) } function printUpTo(x){ var str = '1'; f...

Self improving program quine code-golf restricted-complexity In this challenge you will write a program or function which when run will output a faster solution to this challenge. Formally speaking: you will write a program or function, \$T_0\$, which takes an integer \$x\$ as input and outputs a...

Un-look-and-say code-golf Take a term of the look-and-say sequence sequence as string input and output all the previous terms, all the way back to 1. Your program only needs to deal with instances of the standard sequence. Standard loopholes apply. Test cases: 111221: [1211,21,11,1] 111321131221:...

Every single error code-golf For at least 3 types of error in a language of your choice, write a program that throws that error. Your chosen language must have at least 3 different types of errors (E.g for javascript TypeError, ReferenceError, URIError). But when all your programs are concatenate...

From Wikipedia FIGlet is a computer program that generates text banners, in a variety of typefaces, composed of letters made up of conglomerations of smaller ASCII characters (see ASCII art). The name derives from "Frank, Ian and Glenn's letters".[4] Being free software, FIGlet is commonly inclu...

Google search Challenge is very simple, you have to get a string as input and then launch the default web browser, and search for that string in Google. You have to replace spaces with + and plus signs with %20 . Google search URL is google.com/search?q=query+string Standard loopholes apply, Inte...

Enumerate all possible IPv4 addresses Title might make the challenge hard, but it's easy. You have to print all the possible IPv4 addresses from 0.0.0.0 to 255.255.255.255 Standard loopholes apply, no internet usage for this Tags: code-golf,kolmogorov-complexity,string

Print your PPCG avatar This is a graphical output question. You have to connect to the codegolf.stackexchange.com in your homepage, scrape and download your avatar and show it in your default image viewer or some other way. Standard loopholes apply, connections only allowed to codegolf.stackexcha...