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标题: 大神们，帮帮忙吧！！！ [打印本页]

作者: hpuafei 时间: 2014-5-31 19:41
标题: 大神们，帮帮忙吧！！！
MODEL:
SETS:
  E/1..4/;
  F/1..4/;
  link(E,F):c,x,u;
ENDSETS
DATA:
  p=5 1  0 2
4 3  5 4
4 2  1 2
2 5  6 6;
  c=41 0 0 4
7 3 1 9
2 4 4 2
8 5 1 8 ;
ENDDATA
Max=@sum(link(i,j):u(i,j)*x(i,j))=@sum(link(i,j):p(i,j)*x(i,j))/@sum(link(i,j):c(i,j)*x(i,j));
@for(E(i)

sum(F(j):x(i,j))=1);
@for(F(i)

sum(E(j):x(i,j))=1);
@for(link(i,j)

bin(x));
END

作者: 平凡之不凡 时间: 2014-6-2 02:04
怎么了

作者: wujianjack2 时间: 2014-6-19 16:48
MODEL:
SETS:
  E/1..4/;
  F/1..4/;
  link(E,F):c,x,p;
ENDSETS
DATA:
  p=5 1  0 2
4 3  5 4
4 2  1 2
2 5  6 6;
  c=41 0 0 4
7 3 1 9
2 4 4 2
8 5 1 8 ;
ENDDATA
Max=@sum(link(i,j):p(i,j)*x(i,j))/@sum(link(i,j):c(i,j)*x(i,j));
@for(E(i):@sum(F(j):x(i,j))=1);
@for(F(i):@sum(E(j):x(i,j))=1);
@for(link(i,j):@bin(x));
END

  Global optimal solution found.
  Objective value:                      4.00000000000
  Objective bound:                      4.00000000000
  Infeasibilities:                      0.00000000000
  Extended solver steps:                            9
  Total solver iterations:                         88
  Elapsed runtime seconds:                         0.33

                  Variable             Value          Reduced Cost
                  X( 1, 2)       1.00000000000       -0.250000000000
                  X( 2, 3)       1.00000000000          -2.50000000000
                  X( 3, 1)       1.00000000000       -0.500000000000
                  X( 4, 3)       1.00000000000          -4.25000000000

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