alpar@1: /* sample.c */
alpar@1: 
alpar@1: #include <stdio.h>
alpar@1: #include <stdlib.h>
alpar@1: #include <glpk.h>
alpar@1: 
alpar@1: int main(void)
alpar@1: {     glp_prob *lp;
alpar@1:       int ia[1+1000], ja[1+1000];
alpar@1:       double ar[1+1000], z, x1, x2, x3;
alpar@1: s1:   lp = glp_create_prob();
alpar@1: s2:   glp_set_prob_name(lp, "sample");
alpar@1: s3:   glp_set_obj_dir(lp, GLP_MAX);
alpar@1: s4:   glp_add_rows(lp, 3);
alpar@1: s5:   glp_set_row_name(lp, 1, "p");
alpar@1: s6:   glp_set_row_bnds(lp, 1, GLP_UP, 0.0, 100.0);
alpar@1: s7:   glp_set_row_name(lp, 2, "q");
alpar@1: s8:   glp_set_row_bnds(lp, 2, GLP_UP, 0.0, 600.0);
alpar@1: s9:   glp_set_row_name(lp, 3, "r");
alpar@1: s10:  glp_set_row_bnds(lp, 3, GLP_UP, 0.0, 300.0);
alpar@1: s11:  glp_add_cols(lp, 3);
alpar@1: s12:  glp_set_col_name(lp, 1, "x1");
alpar@1: s13:  glp_set_col_bnds(lp, 1, GLP_LO, 0.0, 0.0);
alpar@1: s14:  glp_set_obj_coef(lp, 1, 10.0);
alpar@1: s15:  glp_set_col_name(lp, 2, "x2");
alpar@1: s16:  glp_set_col_bnds(lp, 2, GLP_LO, 0.0, 0.0);
alpar@1: s17:  glp_set_obj_coef(lp, 2, 6.0);
alpar@1: s18:  glp_set_col_name(lp, 3, "x3");
alpar@1: s19:  glp_set_col_bnds(lp, 3, GLP_LO, 0.0, 0.0);
alpar@1: s20:  glp_set_obj_coef(lp, 3, 4.0);
alpar@1: s21:  ia[1] = 1, ja[1] = 1, ar[1] =  1.0; /* a[1,1] =  1 */
alpar@1: s22:  ia[2] = 1, ja[2] = 2, ar[2] =  1.0; /* a[1,2] =  1 */
alpar@1: s23:  ia[3] = 1, ja[3] = 3, ar[3] =  1.0; /* a[1,3] =  1 */
alpar@1: s24:  ia[4] = 2, ja[4] = 1, ar[4] = 10.0; /* a[2,1] = 10 */
alpar@1: s25:  ia[5] = 3, ja[5] = 1, ar[5] =  2.0; /* a[3,1] =  2 */
alpar@1: s26:  ia[6] = 2, ja[6] = 2, ar[6] =  4.0; /* a[2,2] =  4 */
alpar@1: s27:  ia[7] = 3, ja[7] = 2, ar[7] =  2.0; /* a[3,2] =  2 */
alpar@1: s28:  ia[8] = 2, ja[8] = 3, ar[8] =  5.0; /* a[2,3] =  5 */
alpar@1: s29:  ia[9] = 3, ja[9] = 3, ar[9] =  6.0; /* a[3,3] =  6 */
alpar@1: s30:  glp_load_matrix(lp, 9, ia, ja, ar);
alpar@1: s31:  glp_simplex(lp, NULL);
alpar@1: s32:  z = glp_get_obj_val(lp);
alpar@1: s33:  x1 = glp_get_col_prim(lp, 1);
alpar@1: s34:  x2 = glp_get_col_prim(lp, 2);
alpar@1: s35:  x3 = glp_get_col_prim(lp, 3);
alpar@1: s36:  printf("\nz = %g; x1 = %g; x2 = %g; x3 = %g\n",
alpar@1:          z, x1, x2, x3);
alpar@1: s37:  glp_delete_prob(lp);
alpar@1:       return 0;
alpar@1: }
alpar@1: 
alpar@1: /* eof */