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Questions tagged [rosetta-stone]

Encouraging users to solve a challenge using as many different languages as they know. The end goal is to demonstrate how the same challenge is accomplished in different programming languages.

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Code Golf: Lasers

The challenge The shortest code by character count to input a 2D representation of a board, and output 'true' or 'false' according to the input. The board is made out of 4 types of tiles: # - A solid wall x - The target the laser has to hit / or…
LiraNuna
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Code Golf - π day

The Challenge Guidelines for code-golf on SO The shortest code by character count to display a representation of a circle of radius R using the *character, followed by an approximation of π. Input is a single number, R. Since most computers seem to…
John La Rooy
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Code Golf: Four is magic

The puzzle A little puzzle I heard while I was in high school went something like this... The questioner would ask me to give him a number; On hearing the number, the questioner would do some sort of transformation on it repeatedly (for example, he…
Platinum Azure
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Code Golf: Piano

The challenge The shortest code by character count to output a part of a piano keyboard starting from input note in a given length. Input will be composed of a note ([ACDFG]#|[A-G]) to start printing the keyboard from and a positive number…
LiraNuna
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Code Golf: Collatz Conjecture

Inspired by http://xkcd.com/710/ here is a code golf for it. The Challenge Given a positive integer greater than 0, print out the hailstone sequence for that number. The Hailstone Sequence See Wikipedia for more detail.. If the number is even,…
Earlz
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Code Golf: Playing Tetris

The basics: Consider the following tetrominoes and empty playing field: 0123456789 I O Z T L S J [ ] [ ] # …
ChristopheD
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Code Golf: Conway's Game of Life

The Challenge: Write the shortest program that implements John H. Conway's Game of Life cellular automaton. [link] EDIT: After about a week of competition, I have selected a victor: pdehaan, for managing to beat the Matlab solution by one character…
hb2pencil
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Code Golf: Playing Cubes

The challenge The shortest code by character count, that will output playing bricks tower series according to user input. The input will be a series of numbers (positive, negative and zero) that represents the height of the current cube tower…
LiraNuna
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Code Golf: Regex parser

The goal Today's Code Golf challenge is to create a regex parser in as few characters as possible. The syntax No, I'm not asking you to match Perl-style regular expressions. There's already a very reliable interpreter for those, after all!…
Platinum Azure
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Code Golf: Running Water

The challenge The shortest code by character count to identify and mark water depressions in the ASCII representation of a land from input. Input will be an ASCII representation of a landscape, having hills, valleys and flat lands. The program…
LiraNuna
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Code Golf: Hourglass

The challenge The shortest code by character count to output an hourglass according to user input. Input is composed of two numbers: First number is a greater than 1 integer that represents the height of the bulbs, second number is a percentage (0 -…
LiraNuna
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The Skyline Problem‍​​

I just came across this little problem on UVA's Online Judge and thought, that it may be a good candidate for a little code-golf. The problem: You are to design a program to assist an architect in drawing the skyline of a city given the locations of…
zeroDivisible
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Code Golf: Happy Primes!

It's Sunday, time for a round of code golf! Challenge Write the shortest source code by character count to determine if an input number is a "happy prime", "sad prime", "happy non-prime", or "sad non-prime." Input The input should be a integer that…
mjschultz
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Code Golf: Connecting the dots

You may remember these drawings from when you were a child, but now it's time to let the computer draw them (in full ascii splendour). Have fun! Description: The input are multiple lines (terminated by a newline) which describe a 'field'. There are…
ChristopheD
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Code Golf: Triforce

This is inspired by/taken from this thread: http://www.allegro.cc/forums/thread/603383 The Problem Assume the user gives you a numeric input ranging from 1 to 7. Input should be taken from the console, arguments are less desirable. When the input is…
Grant Paul
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