I am new to c++, so I apologize for the possibly poorly formulated question below.

I am trying to use gnu glpk library, and I am doing something wrong.

I code in visual studio 2010. To use the library, I have included the #include <glpk.h> command. In the code I pass through it (visible below) I get 15 instances of

1>lkj.obj : error LNK2019: unresolved external symbol _glp_create_prob referenced in function _main

and similar.

I am sure there is something silly I just don't know that I am supposed to do.

Here is my code:

I assume that I am forgetting to add a library in one way or another...Code:`#include <iostream>`

#include <stdlib.h>

#include <glpk.h>

int main(void)

{ glp_prob *lp;

int ia[1+1000], ja[1+1000];

double ar[1+1000], z, x1, x2, x3;

s1: lp = glp_create_prob();

s2: glp_set_prob_name(lp, "sample");

s3: glp_set_obj_dir(lp, GLP_MAX);

s4: glp_add_rows(lp, 3);

s5: glp_set_row_name(lp, 1, "p");

s6: glp_set_row_bnds(lp, 1, GLP_UP, 0.0, 100.0);

s7: glp_set_row_name(lp, 2, "q");

s8: glp_set_row_bnds(lp, 2, GLP_UP, 0.0, 600.0);

s9: glp_set_row_name(lp, 3, "r");

s10: glp_set_row_bnds(lp, 3, GLP_UP, 0.0, 300.0);

s11: glp_add_cols(lp, 3);

s12: glp_set_col_name(lp, 1, "x1");

s13: glp_set_col_bnds(lp, 1, GLP_LO, 0.0, 0.0);

s14: glp_set_obj_coef(lp, 1, 10.0);

s15: glp_set_col_name(lp, 2, "x2");

s16: glp_set_col_bnds(lp, 2, GLP_LO, 0.0, 0.0);

s17: glp_set_obj_coef(lp, 2, 6.0);

s18: glp_set_col_name(lp, 3, "x3");

s19: glp_set_col_bnds(lp, 3, GLP_LO, 0.0, 0.0);

s20: glp_set_obj_coef(lp, 3, 4.0);

s21: ia[1] = 1, ja[1] = 1, ar[1] = 1.0; /* a[1,1] = 1 */

s22: ia[2] = 1, ja[2] = 2, ar[2] = 1.0; /* a[1,2] = 1 */

s23: ia[3] = 1, ja[3] = 3, ar[3] = 1.0; /* a[1,3] = 1 */

s24: ia[4] = 2, ja[4] = 1, ar[4] = 10.0; /* a[2,1] = 10 */

s25: ia[5] = 3, ja[5] = 1, ar[5] = 2.0; /* a[3,1] = 2 */

s26: ia[6] = 2, ja[6] = 2, ar[6] = 4.0; /* a[2,2] = 4 */

s27: ia[7] = 3, ja[7] = 2, ar[7] = 2.0; /* a[3,2] = 2 */

s28: ia[8] = 2, ja[8] = 3, ar[8] = 5.0; /* a[2,3] = 5 */

s29: ia[9] = 3, ja[9] = 3, ar[9] = 6.0; /* a[3,3] = 6 */

s30: glp_load_matrix(lp, 9, ia, ja, ar);

s31: glp_simplex(lp, NULL);

s32: z = glp_get_obj_val(lp);

s33: x1 = glp_get_col_prim(lp, 1);

s34: x2 = glp_get_col_prim(lp, 2);

s35: x3 = glp_get_col_prim(lp, 3);

s36: printf("\nz = %g; x1 = %g; x2 = %g; x3 = %g\n",

z, x1, x2, x3);

s37: glp_delete_prob(lp);

return 0;

}

/* eof */

Help would be much appreciated!