code-golf

Locked . This question and its answers are locked because the question is off-topic but has historical significance. It is not currently accepting new answers or interactions. Learn more . The challenge The shortest code by character count to solve the input lights out board. The lights out board is a 2d square grid of varying size composed of two characters - . for a light that is off and * for a light that is on. To solve the board, all "lights" have to be turned off. Toggling a light (i.e. turning off when it is on, turning on when it is off) is made 5 lights at a time - the light selected

A word is an anagram if the letters in that word can be re-arranged to form a different word. Task: The shortest source code by character count to find all sets of anagrams given a word list. Spaces and new lines should be counted as characters Use the code ruler ---------10--------20--------30--------40--------50--------60--------70--------80--------90--------100-------110-------120 Input: a list of words from stdin with each word separated by a new line. e.g. A A's AOL AOL's Aachen Aachen's Aaliyah Aaliyah's Aaron Aaron's Abbas Abbasid Abbasid's Output: All sets of anagrams, with each set

Recently, I used my favorite image editor to make a 1x1 black pixel (which can come in handy when you want to draw solid boxes in HTML cheaply). Even though I made it a monochrome PNG, it came out to be 120 bytes! I mean, that's kind of steep. 120 bytes. For one pixel . I then converted it to a GIF, which dropped the size down to 43 bytes. Much better, but still... Challenge The shortest image file or program that is or generates a 1x1 black pixel. A submission may be: An image file that represents a 1x1 black pixel. The format chosen must be able to represent larger images than 1x1, and

Learning a little about T-SQL, and thought an interesting exercise would be to generate a Mandelbrot set with it. Turns out someone already has (and recently, it appears). I'll let someone else post it as an answer, but I'm curious what optimizations can be made. Alternately, what would you do to make the code more readable? I'll select the most readable (yet reasonably compact) version as the accepted answer (too bad we don't have rep bounties yet!) unless someone really comes along with a great optimization. Bonus points to those answers that teach me a little something about T-SQL. -Adam

Remember that away message on aim that said how: Aoccdrnig to a rscheearch at Cmabrigde Uinervtisy, it deosn't mttaer in waht oredr the ltteers in a wrod are, the olny iprmoetnt tihng is taht the frist and lsat ltteer be at the rghit pclae. The rset can be a toatl mses and you can sitll raed it wouthit porbelm. Tihs is bcuseae the huamn mnid deos not raed ervey lteter by istlef, but the wrod as a wlohe. Anyway I'm trying to make a function that would do that to an entire page. There are a few rules for this function. less then 4 characters leave alone. non-alphanumeric characters don't count