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升级   4.21% 该用户从未签到
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sets:citys/1..13/:c,h;roads(citys,citys)/distance,flow,x,y,z;endsetsdata:distance=;!十三阶矩阵 flow=;!十三阶矩阵 a=0.6; p=3; z(i,k)=flow(i,k);y(i,l)=flow(i,k)+flow(k,l);x(i,j)=flow(i,k)+flow(k,j);enddatamin=@for(roads(i):@for(roads(k):@sum(roads(i,k):d(i,k)*z(i,k)))+@for(roads(k):@sum(roads(l):@for(roads(l):@sum(roads(l):a*d(k,l)*y(i,l)))))+@for(roads(l):@sum(roads(l):@for(roads(j):@sum(j):d(l,j)*x(i,j))))); @for(citys(k):@sum(roads(k):h(k))=p);@for(roads(k):@sum(roads(i):z(i,k))=@for(roads(j):@sum(roads(j):w(i,j))));@for(roads(l):@sum(roads(l):x(l,j)=flow(i,j)));@for(roads|@for(roads(l):@sum(roads(l):y(i,l)))+@for(roads(j):@sum(roads(j):x(i,l)))+@for(roads(l):@sum(roads(l):y(i,l)-z(i,k)))=0);@for(roads(i,k)|z(i,k)#le#o(i)*h(k));@for(roads(i,j):@for(city(l)):x(i,j)#le#w(i,j)*h(l));@for(city(k):@bin(h));@for(roads(i,j)|x(i,j)#le#0);@for(roads(i,l)|y(i,l)#le#0);@for(roads(i,k)|z(i,k)#le#0);end 搞了好久,不知道哪里错,希望高手指点一下,谢谢了!!!
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zan
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