no more than two levels of students

[abdelkader_tvs]

hello
please help me with my timetable
"" a teacher teaches three levels of students 1st year, 2nd year and 3rd year . each level has 4 or 5 groups of students . we want this teacher to teach no more than two levels by real day. i.e two levels only or only one.

what is the constraint used to do this.

[Liviu Lalescu]

Hello,

I think constraint teacher max two activity tags from N1, N2, N3 per real day. Read the help of this constraint.

[abdelkader_tvs]

thanks for anwering so soon but the constraint did not work

[Liviu Lalescu]

I told you to please read the help of that constraint. "N1", 2, 3, exactly, no other tags.

[abdelkader_tvs]

thanks i read the help but it is not what i really want

the teacher may have all activities of the same tag on one real day or different activities of only two tags on the same day but he cannot have three activities of three tags

[Liviu Lalescu]

You are welcome!

I meant like the attached. I just renamed the 3 tags to "N1", "N2", "N3".

[abdelkader_tvs]

thanks it worked
so the names of tyhea tags should be N1 N2 N3 NO OTHER NAMES

[Liviu Lalescu]

Indeed.