lingo 模型定义错误,求高手修改,model:sets:n/1..20/;a/1..13/:de
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model:
sets:n/1..20/;
a/1..13/:demand;
links(n,a):b,x;
endsets
data:demand,[email protected]('D:\123.xls');
enddata
[email protected](links:b*x);
@for(a(j):
@sum(n(i): x(i,j))=1);
@for(n(i):
@sum(a(j): x(i,j))