what does that mean?Or you could wait till 1141 frees up.
regardless, they usually schedule discrete and 1a so that all streams complement each other, even if most of the students are seng/compsciBecause you're a bit late in the enrolling, the stream of 1141 that doesn't clash with discrete is full atm.
go to the faculty of maths first year office and see if they can't make room for you. My guess is they will if you're in higher 1A.can i do it next semester