sets: supplyment/s1..s20/: supply; receiver/r1..r20/: demand; links(supplyment ,receiver): cost, s;endsets!目标函数; min=@sum(links: cost*s);!需求约束; @for(receiver(J): @sum(supplyment(I): volume(I,J))<=demand(J));!产量约束;
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![sets: supplyment/s1..s20/: supply; receiver/r1..r20/: demand; links(supplyment ,receiver): cost, s;endsets!目标函数; min=@sum(links: cost*s);!需求约束; @for(receiver(J): @sum(supplyment(I): volume(I,J))<=demand(J));!产量约束;](/uploads/image/z/1118620-28-0.jpg?t=sets%3A++supplyment%2Fs1..s20%2F%3A++supply%3B++receiver%2Fr1..r20%2F%3A+demand%3B++links%28supplyment+%2Creceiver%29%3A+cost%2C+s%3Bendsets%21%E7%9B%AE%E6%A0%87%E5%87%BD%E6%95%B0%3B++min%3D%40sum%28links%3A+cost%2As%29%3B%21%E9%9C%80%E6%B1%82%E7%BA%A6%E6%9D%9F%3B++%40for%28receiver%28J%29%3A++++%40sum%28supplyment%28I%29%3A+volume%28I%2CJ%29%29%26lt%3B%3Ddemand%28J%29%29%3B%21%E4%BA%A7%E9%87%8F%E7%BA%A6%E6%9D%9F%3B)
sets: supplyment/s1..s20/: supply; receiver/r1..r20/: demand; links(supplyment ,receiver): cost, s;endsets!目标函数; min=@sum(links: cost*s);!需求约束; @for(receiver(J): @sum(supplyment(I): volume(I,J))<=demand(J));!产量约束;
sets:
supplyment/s1..s20/: supply;
receiver/r1..r20/: demand;
links(supplyment ,receiver): cost, s;
endsets
!目标函数;
min=@sum(links: cost*s);
!需求约束;
@for(receiver(J):
@sum(supplyment(I): volume(I,J))<=demand(J));
!产量约束;
@for(supplyment(I):
@sum(receiver(J): volume(I,J))=supply(I));
s(I,J)=@if(volume(I,J)#ne#0,1,0)
supply= 0 \x051 \x050 \x052 \x050 \x050\x050\x059\x053\x058\x050\x050\x050\x050\x050\x050\x050\x050\x050\x057
;
demand=0 0 8 \x050 \x059 \x053\x057\x050\x050\x050\x052\x056\x053\x052\x054\x056\x0510\x059\x054\x050
;
cost=
.
enddata
end
sets: supplyment/s1..s20/: supply; receiver/r1..r20/: demand; links(supplyment ,receiver): cost, s;endsets!目标函数; min=@sum(links: cost*s);!需求约束; @for(receiver(J): @sum(supplyment(I): volume(I,J))<=demand(J));!产量约束;
数据放到data段里面 括号要用半角的
另外给出错误提示