问题描述：
那位高手知道下面这段lingo程序为什么解不出来?谢谢,急!
model:
sets:
warehouses/wh1..wh6/:capacity;
vendors/v1..v18/:demand;
links(warehouses,vendors):cost,volume,x;
endsets
!目标函数;
min=@sum(links:cost*volume*1);
!需求约束;
@for(vendors(j):@sum(warehouses(i):volume(i,j)*x(i,j))
model:
sets:
warehouses/wh1..wh6/:capacity;
vendors/v1..v18/:demand;
links(warehouses,vendors):cost,volume,x;
endsets
!目标函数;
min=@sum(links:cost*volume*1);
!需求约束;
@for(vendors(j):@sum(warehouses(i):volume(i,j)*x(i,j))
问题解答：
我来补答展开全文阅读