Two teachers do not coincide with holidays

[nguyenhuuduyet]

How do the two teachers do not coincide with the holidays? Thanhk you very much!

[Liviu Lalescu]

Do you mean the free times of the week for T1 and T2 do not overlap? Add dummy activities for T1 to fill a week's time slots, the same for T2, and a not overlapping constraint for these dummy activities.

I hope I am not mistaking.

[nguyenhuuduyet]

Thank you very much!