My sets can overlap too. For exmaple I may have 4 sets like '0..7','1-6', '6-12',and '3..9'. I also need to eliminate duplicate items. In the case of overlapping sets, every resulting row should satisfy the initial condition. ie.. if I ask for 2 from '0..7' and 3 from '6..12', I should NOT have "6,7,6,7,8" or even "4,5,6,7,8" ( Here 0..7 has 4 entries rather than 2, as asked for.)
With those conditions, nothing will satisfy if you'd have to pick at least one from '1..6'. Because any pick from that set will be a possible pick from the set '0..7', making that the count of picks from that set will be off.

In reply to Re: Multiple Combinatorics by JavaFan
in thread Multiple Combinatorics by aartist

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