Sign in Code Jam 2015 Code Jam Home Distributed Code Jam Home Schedule Terms and Conditions Frequently Asked Questions Distributed FAQ Quick-Start Guide Archive Practice and Learn Code Jam History How do I Register? Competing in a Round What are Rounds There is a round happening right now, but I can only watch. Why? Competing in a Round: Mechanics A round is starting soon. Where do I go to compete? How do I compete in a round? Do I have to solve the problems in any particular order? How is the winner of a round determined? Competing in Round: Tools What programming languages can I use to solve the problems? What development environments can I use? What OS and browser should I use? Can I use a phone to compete? What programming languages would you recommend? Can I use code that I don't write during the contest? ...