modelisilldefined!model:调水模型,成本最小化问题;sets:city/c1..C10/:w,D;sheng/s1..s10/:shen,O;links(city,sheng):water,money;endsets目标函数;min=@sum(links:water*money)+@sum(city:O*D);需求约束;@for(city(I):@sum(sheng(J):water(I,J)

Question

model is ill defined!
model:
调水模型,成本最小化问题;
sets:
city/c1..C10/:w,D;
sheng/s1..s10/:shen,O;
links(city,sheng):water,money;
endsets
目标函数;
min=@sum(links:water*money)+@sum(city:O*D);
需求约束;
@for(city(I):
@sum(sheng(J):water(I,J))

Answer 1

错误很多 而且看不懂你要表达什么 你自己找我来说吧