Looks like you would be allowed to use it: https://code.google.com/codejam/terms https://code.google.com/codejam/terms 'You may use any programming language to

Looks like you would be allowed to use it: https://code.google.com/codejam/terms https://code.google.com/codejam/terms 'You may use any programming language to solve a Code Jam problem. However, for any round after the qualification round, the compiler, interpreter, libraries, and external services you use must be available such that anyone else can use it for free without a time limitation and without violating any rights of any person or entity'