change in min hours daily for all teachers

[Volker Dirr]

so i hope you add "min hours daily for all teachers".

No, we will not do that, because:
a) that constraint will have no effect (because days without activities are allowed with min hours daily constraint)
b) min day per week  can be used as "min hours = 1". so your request is already included
c) that doesn't help your dataset, because the dataset will be never solveable. please read my previous post again and check that. YOUR DATASET IS IMPOSSIBLE WITH THAT REQUEST! i wrote the proof for that in my previous post.

[Silver]

i solved the problem temporarily by:
- "teachers min days per week" = 8
- "teachers max days per week" = 8

please see attachment.
and Thank you for your interest.

[Volker Dirr]

Yes, that is possible and a nice solution. (But that was not your request. Your request was that no teacher should have a free day. Now everybody will get a free day.)

[Silver]

But that was not your request.

When I did not find a solution,
I tried to make the distribution of free days equally.

[Volker Dirr]

of course. but why not = 7 with both constraints. so all teachers have 2 free days. (=6 sadly doesn't work because of room problem).