int QSdelete_rows (QSprob p, int num, int *dellist)
/* Assume p is an initialized LP problem with at least 4 rows.  */
/* Use QSdelete_rows() to remove rows 1 and 3.                  */

int rval;
int dellist[2] = { 1, 3 };

rval = QSdelete_rows (p, 2, dellist);
if (rval) {
    fprintf (stderr,
             "QSdelete_rows failed with return code %d\n", rval);
}