ex4sos.mps

利用c语言编写

* Infeasible SOS1 example problem from the CPLEX reference manual, here made
* feasible by increasing the c1 RHS from 20 to 30 and making X4 semi-continuous.
* Optimal value is -90 with the solution vector [ 0, 0, 30.0, 0, 0].
*
NAME          ex4sos
ROWS
 N  obj
 L  c1
 L  c2
 E  c3
COLUMNS
    x1        obj                 -1   c1                  -1
    x1        c2                   1
    x2        obj                 -2   c1                   1
    x2        c2                  -3   c3                   1
    x3        obj                 -3   c1                   1
    x3        c2                   1
    x4        obj                 -1   c1                  10
    x4        c3                -3.5
    x5        obj                  0
RHS
    rhs       c1                  30   c2                  30
BOUNDS
 UP BOUND     x1                  40
 LI BOUND     x4                   1
 SI BOUND     x4                   3
SOS
 S1 SET       SOS1                10
    SET       x1               10000
    SET       x2               20000
    SET       x4               40000
    SET       x5               50000
ENDATA