<>请高手帮忙看一下,下面的为什么没有解呀</P>
<>sets:<br>operation/oper1..oper3/:cin,cout,mass,volin,volout;<br>links(operation,operation)|cin(&1) #ne# cin(&2) #and# cout(&1) #ne# cout(&2): vollink;<br>fresh/fresh1..fresh3/:volfresh;<br>treat/treat1..treat3/:voltreat;<br>endsets<br>data:<br>cin=0 25 50;<br>cout=50 75 100;<br>mass=2500 2500 2500;<br>enddata<br><a href="mailto:min=@sum(fresh" target="_blank" >min=@sum(fresh</A>: volfresh);<br>@for(operation(I):<br>(@sum(operation(J) |J#ne#I: vollink(J,I))+volfresh(I))=volin(I));<br>@for(operation(I):<br>(@sum(operation(J)|J#ne#I: vollink(I,J))+voltreat(I))=volout(I));<br>@for(operation(I):<br>(@sum(operation(J)|J#ne#I: vollink(J,I))+volfresh(I))=(@sum(operation(J)|J#ne#I: vollink(I,J))+voltreat(I)));<br>@for(operation(I):<br>(@sum(operation(J)|J#ne#I: vollink(J,I)*cout(J))/(@sum(operation(J)|J#ne#I: vollink(J,I))+volfresh(I)))<=cin(I));<br>@for(operation(I):<br>(@sum(operation(J)|J#ne#I: vollink(J,I)*cout(J)+mass(I))/(@sum(operation(J)|J#ne#I: vollink(J,I))+volfresh(I)))=cout(I));<br>end<br></P>
[此贴子已经被作者于2006-5-15 19:11:11编辑过]
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