数模-03-优化模型实例

model:
sets:
item/1..9/:c,x;
endsetsdata:
c=5,4,4,3,4,3,2,2,3;
enddatamin=@sum(item(i):x(i));
!课程数约束;
x(1)+x(2)+x(3)+x(4)+x(5)>=2;
x(3)+x(5)+x(6)+x(8)+x(9)>=3;
x(4)+x(6)+x(7)+x(9)>=2;
!先修课约束;
x(3)<=x(2);x(3)<=x(1);
x(4)<=x(7);
x(5)<=x(2);x(5)<=x(1);
x(6)<=x(7);
x(8)<=x(5);
x(9)<=x(1);x(9)<=x(2);
@for(item(i):@bin(x(i)));
end

model:
sets:
item/1..9/:c,x;
endsetsdata:
c=5,4,4,3,4,3,2,2,3;
enddatamax=@sum(item(i):c(i)*x(i));
@sum(item(i):x(i))=6;
!课程数约束;
x(1)+x(2)+x(3)+x(4)+x(5)>=2;
x(3)+x(5)+x(6)+x(8)+x(9)>=3;
x(4)+x(6)+x(7)+x(9)>=2;
!先修课约束;
x(3)<=x(2);x(3)<=x(1);
x(4)<=x(7);
x(5)<=x(2);x(5)<=x(1);
x(6)<=x(7);
x(8)<=x(5);
x(9)<=x(1);x(9)<=x(2);
@for(item(i):@bin(x(i)));
end