作业帮在lingo中怎么编写目标函数：
来源：学生作业帮 编辑：作业帮 分类：综合作业 时间：2024/05/11 02:39:49
在lingo中怎么编写目标函数：
其中变量已经定义
sets:
si/1..6/:;
sj/1..5/:;
sij(si,sj):y,z,c,x;
endsets
max=@sum(si(i):(1500-25)*@sum(sj(j):y(i,j)*z(i,j))-50*@sum(sj(j):(7-i)*(x(i,j)-y(i,j)*z(i,j)))-@sum(sj(j)|j#le#2:c(i,j)*(1+(i-1)*n/100)*x(i,j))-@sum(sj(j)|j#gt#2:c(i,j)*(1+(i-1)*n/50)*x(i,j)))-75000;
si/1..6/:;
sj/1..5/:;
sij(si,sj):y,z,c,x;
endsets
max=@sum(si(i):(1500-25)*@sum(sj(j):y(i,j)*z(i,j))-50*@sum(sj(j):(7-i)*(x(i,j)-y(i,j)*z(i,j)))-@sum(sj(j)|j#le#2:c(i,j)*(1+(i-1)*n/100)*x(i,j))-@sum(sj(j)|j#gt#2:c(i,j)*(1+(i-1)*n/50)*x(i,j)))-75000;