probably really helpful if you are trying to optimize your time to degree - I did my undergrad with a double major in 3 years, it's a lot of work setting that up and it requires special permission. I'd setup a DAG of class dependencies and look at which classes to ask special permission for - this is easy in early CS classes in particular, you go to the prof and go I want to take X as a coreq with Y instead of as a prereq because I have basic competence and let me show you how. <blahblahblah about X and Y>