作业帮lingo 运筹学整数规划问题
来源：学生作业帮 编辑：拍题作业网作业帮 分类：综合作业 时间：2024/04/29 13:17:14
lingo 运筹学整数规划问题
sets:
students/s1..s6/:cost;
days/d1..d5/;
links(students,days):time,a,y;
endsets
min=@sum(links:cost*time);
(2*y(i,j))=7);
@for(students(i):@sum(days(j):time(i,j))=14);
@for(days(j):@sum(students(i):y(i,j))
sets:
students/s1..s6/:cost;
days/d1..d5/;
links(students,days):time,a,y;
endsets
min=@sum(links:cost*time);
(2*y(i,j))=7);
@for(students(i):@sum(days(j):time(i,j))=14);
@for(days(j):@sum(students(i):y(i,j))
改成这样就没有语法错误了 但是最后没有可行解 应该是你程序与问题不符或者问题本身不对
sets:
students/s1..s6/:cost;
days/d1..d5/;
links(students,days):time,a,y;
endsets
min=@sum(links(i,j):cost(i)*time(i,j));
@for(links(i,j):(2*y(i,j))=7);
@for(students(i):@sum(days(j):time(i,j))=14);
@for(days(j):@sum(students(i):y(i,j))
sets:
students/s1..s6/:cost;
days/d1..d5/;
links(students,days):time,a,y;
endsets
min=@sum(links(i,j):cost(i)*time(i,j));
@for(links(i,j):(2*y(i,j))=7);
@for(students(i):@sum(days(j):time(i,j))=14);
@for(days(j):@sum(students(i):y(i,j))