Sure last year lecture was different, thus the exam question was different as well, using last year lecture notations.
And yes, as advertised several times, this year guest lecture can also part of the exam. The exam may cover any topic addressed in class, from week 1 to week 14, all included.
And yes, as advertised several times, this year guest lecture can also part of the exam. The exam may cover any topic addressed in class, from week 1 to week 14, all included.