Programming Puzzles & Code Golf newsletter

Top new questions this week:

2048-like array shift

Assume we want to shift an array like it is done in the 2048 game: if we have two equal consecutive elements in array, merge them into twice the value element. Shift must return a new array, where ...

code-golf array-manipulation

asked by greenwolf 58 votes answered by Jonathan Allan 19 votes

Find the Swirling Words!

Don't ask me how or why but while coding on a project I noticed that the characters of a couple of words had a particular pattern referred to the alphabet, I connected each character of the words with ...

code-golf string

asked by Mario 40 votes answered by Luis Mendo 11 votes

Folding Numbers

Given a number determine if it is a folding number. A folding number is a number such that if you take it binary representation and "fold" it in half, That is take the result of XNOR multiplication ...

code-golf number base-conversion binary bitwise

asked by Wheat Wizard 35 votes answered by Dennis 10 votes

pssssssssssssst

Introduction This is one is pretty straightforward. We will be drawing a snake in ascii. This was inspired by that old snake game where you have to collect the fruit and you continuously grow. ...

code-golf ascii-art

asked by jacksonecac 30 votes answered by Luis Mendo 9 votes

Simulate keystrokes

Your job is to simulate a couple of keystrokes that a user types in. Input A string array or string with a delimiter of your choice (outside the range 32-126) containing at least one 'keystroke'. ...

code-golf string

asked by Dopapp 26 votes answered by DJMcMayhem 26 votes

Let's do the Wave!

Input: A string (the wave-snippet) with a length >= 2. A positive integer n >= 1. Output: We output a single-line wave. We do this by repeating the input string n times. Challenge rules: ...

code-golf string

asked by Kevin Cruijssen 26 votes answered by muddyfish 5 votes

Hurricane Matthew and the Lightning Bolts

Challenge Inspired by this challenge and the nasty Hurricane Matthew, we will be generating some lightning bolts dynamically. n = 15: \ /\ / \ / / /\ /\ / \ \ / / /\ /\ \ / / ...

code-golf ascii-art random

asked by Zukaberg 25 votes answered by Ton Hospel 6 votes

Greatest hits from previous weeks:

Emulate an Intel 8086 CPU

Note: A couple of answers have arrived. Consider upvoting newer answers too. Java from NeatMonster Javascript from crempp C from Mike C C++ from Darius Goad Postscript from luser droog C++ from ...

popularity-contest

asked by copy 130 votes answered by j-a 70 votes

Execute prints backwards

Your task is to reverse the order in which some prints get executed. Specs: Your code will be in this form: //some lines of code /*code*/ print "Line1" /*code*/ /*code*/ print "Line2" /*code*/ ...

popularity-contest programming-puzzle

asked by Vereos 92 votes answered by Danko Durbić 163 votes