The basic rule for CSE 100 is: Don't cheat. Instead, make use of the expertise of the CSE 100 staff to learn what you need to know to really do well in the course. If you cheat you will not become a better programmer, and you will not be hired or succeed in your job. So really, don't cheat.
So what is cheating? First make sure that you have read the UCSD Policy on Integrity of Scholarship. Take a moment to read it now.
But what about the specifics for CSE 100? In CSE 100, you can read books, surf the web, talk to your friends and the CSE 100 staff to get ideas for solving your programming assignment problems. However, you, or your 2-person team, must write your own solutions to your programming assignments. Using program code that someone else has written (unless they are in your team for that assignment, or the code was explicitly provided as part of the assignment), or providing program code to someone else not on your team, or turning in code that you have written with someone else not in your team, is cheating. Yes, we do check every program that is turned in.
WRITE YOUR OWN CODE.
To help ensure that there is no way you might be suspected of copying someone else's code, we will ask you to commit to your repository early and often. If you do regular commits, we will be able to see your progress and know that you are making progress on your own toward a solution.
Additionally, if you work with a partner, you must engage in true pair programming, as specified in the pair programming guidelines. That is, you and your partner must both physically present at the same computer anytime you are working on the assignment. You may choose to follow the full Extreme Programming model, but the important part for the sake of this Integrity Agreement is the pair programming piece.
To ensure you don't have a problem with this: Don't even look at or discuss another student's code, and don't let another student look at your code. Don't start with someone else's code and make changes to it, or in any way share code with other students.
Also, in CSE 100, you must write your own answers on the closed-book exams. Getting answers from someone else, or providing answers to someone else, is cheating.
If you do cheat, we will enforce the UCSD Policy on Integrity of Scholarship. This means: You will get an F in the course, and the Dean of your college will put you on probation or suspend you from UCSD.