[Help-glpk] API problem

[Dušan Plavák]

Hi guys,

I`m trying to learn how to use glpk api.

I`m sitting couple hours on it and can not figure our where is a problem.

I attached 2 files. One is .lp file and second sample.c

Both are trying to solve same problem. With glpsol i have no problem to solve it, but when I try to modify sample.c so it solve the same problem it just write back:

GLPK Simplex Optimizer, v4.55

26 rows, 9 columns, 90 non-zeros

      0: obj =   0.000000000e+00  infeas =  7.963e+02 (0)

LP HAS NO PRIMAL FEASIBLE SOLUTION

z = 0; x1 = 0; x2 = 0; x3 = 0; x4 = 0

Any ideas? 

Thanks

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S pozdravom Dušan Plavák

plan.lp
Description: Binary data

sample.c
Description: Text Data