1. Bad Design (minumum -20pt for not compiling, scoring varies)
Ok, this is all about design, you will have to refer to the Design Suggestions for more detail.
2. Operators not overloaded or not completely done right in that regard (depending on severity and problems I took anywhere from 2 to 15 or even more points off)
3. Bad understanding of vectors in general (up to -20pt)
4, Not following directions for Return and Rent function (-2pt or more)
Yeah, this is kind of self explanatory. The assignment asked you to make both function taking only one parameter of integer in. That integer is supposed to be the index of the movie in the store that you want to change. Some of you decided to get cleaver and have the parameter be a Movie object and do a name search... Bad design, refer to the Design Suggestion for more detail.
5. You put both classes in the same file (-2pt)
Ok, this is so dumb that I don't even know if I have to elaborate. So of you thought it was slick to put both Movie and Store class in the same file. That was über dumb since that tells me you don't quite want to link two user defined libraries. It also shows that someone wasn't paying attention in CS 132 when it comes to good style.
6. No driver (-5pt)
Ok, I don't know if you ran out of time or what but some of you have no driver. How am I suppose to have an easy time grading it (also in instructions too)?