Comp Eng will do comp1917, Physics, Maths and Discrete Maths.
The math subjects are quite long (6 hours each, lecture and tutorial) while 1917 has a 3h tute/lab plus a 2h lecture (another 2h is usually optional/revision). Not sure about physics - I know there are lectures and a lab.
Expect a 5 day week, however these days more of the course is being taught with online supplementary materials. For example, 1917's lectures are usually pre-recorded from a previous year and the uni has Echo which records the audio and slides for you. So as far as contact hours go, you could see yourself spending a lot less time in lecture theatres/at uni and more at home.