Question

我的lingo程序报161错误!

Answer 1

model:

sets:

cd/1..3/:a;

xd/1..4/:b;

links(cd,xd):c,x;

px/1..13/:d1,d2;

endsets

data:

a=300 200 400;

b=200 100 450 250;

c=5 2 6 7

3 5 4 6

4 5 2 3;

enddata

min=d2(13);

@for(cd(i):@sum(xd(j):x(i,j))=a(i));

@for(xd(j):@sum(cd(i):x(i,j))