Quit a four-year university, started at a CCC then transfer to UC

If you took courses that are duplicates of each other then you only get credit once. For repeated courses, UC only allows repeating and grade replacement if the previous grade was C- or lower, but do not exactly say what they do if you do repeat a course with a C or higher grade (probably means that they will take the first C or higher grade, but ask to verify).

https://admission.universityofcalifornia.edu/counselors/transfer/advising/transferring-credits/

Note that a course may be UC transferable but not a direct equivalent to a course offered by the UC campus(es) you are applying to. Such a course could possibly be used to fulfill less specific requirements that describe it (e.g. “an arts or literature course”, “a social science course”), or could be transferred as non-specific credit.