Algorithms playground for common questions solved in ruby syntax. In case you want to prepare yourself for a job interview - try to solve it yourself first, then have a look here.I interviewed with Google, Facebook, LinkedIn, Twitter and others. I also interviewed others myself. Sometimes it looks like they all ask you the same "out of the box" questions that don't really check knowledge but memorization of the same tricks. This is my way of saying - change your interview style. There are lots of smart people out there, this is not the best way to find them.