[geebee]

I knew very smart guy who worked over 30 hours a week on compilers alone. He got an A-. Maybe he could have gotten away with less work.

This was a notoriously difficult prof at a notoriously tough program, though. So maybe not typical.

[pavel_lishin]

I suppose it depends on the specifics of your program. BS in CS over here, never had to take a compiler class as far as I remember.