What can I do with this demand?

[JinZhao]

Dear Sir:

5 days, 4 hours at AM, 4 hours at PM.
English have 5 hours to teach.
Constraint I: 2 hours must be consecutive, but can not consecutive at 2nd AM hour and 3rd AM hour.
Constraint II: 3 hours must be taught at AM.

I have already read the User Guide, but I didn't find the method to deal with these two constraints.

Looking forward to you help.

[Volker Dirr]

2 variants:

1st is not exactly what you request, but i think it might be also fine.
2nd is what you request, but it is a bit more work and generating might be very slow.

1st variant:

fet -> data -> activities -> add:
split into 4 parts.
1st must increase duration up to 2.
set 100% weight.

fet -> data -> time constraints -> activities -> a set of sub-activities has a set of preferred starting times
select subject English. Keep component number one (that is the sub-activity with duration 2)
disable 2nd hour

the second constraint isn't exactly possible.
i suggest to do:
fet -> data -> time constraints -> activities -> a set of sub-activities has a set of preferred starting times
select subject English. Choose component number two (that is the sub-activity with duration 1)
disable PM hours

so you already have got at least 1 at AM.

now maybe do it similar with component number 3 (and maybe also 4).
Or also disable AM with component number 1.

----------------

2nd Variant:
fet -> data -> activities -> add:
split into 5 parts.
set 100% weight.
search the min day constraint at fet -> data -> time constraints -> activities -> min days between a set of activities
modify the automatic added constraint. remove the last sub-activity.

fet -> data -> time constraints -> activities -> 2 activities are consecutive
add 2 sub-activities: the 1st and the last (5th) sub-activity.

so now you have again in fact 2+1+1+1, but this time we can count them better for your second request.

so again:
fet -> data -> time constraints -> activities -> a set of sub-activities has a set of preferred starting times
select subject English. Keep component number one (that is the sub-activity with duration 2)
disable 2nd hour

fet -> data -> time constraints -> a set of activities occupies max time slots from a selection
add all sub-activities, select all PM hours and increase the max occupied spinbox up to 2.

[JinZhao]

Thank you so mach for your suggest!

"A set of activities occupies max time slots from selection" is really what I need.

By the way, Your algorithm is extremely excellent!