Presenting someone else's work, whether it from a friend, a website, a textbook, etc, as your own is unacceptable. If you do not understand what is allowed for any given assignment, ask, don't assume. We will not accept ``I did not understand the rules'' as an excuse for academic dishonesty. A student who fails to follow this policy will receive an F in the course (students may appeal this decision to the Dean of Students at the Division of Physical Sciences and request a disciplinary committee hearing).
We encourage talking with other students about how to solve homework problems, but each student \textit{must write his/her own code}. Students should include in their code comments with the names of any collaborators and any sources used to help solve a problem (including websites).