Getting Started Example (milpsl0)

```/***************************************************************/
/*                                                             */
/*          S A S   S A M P L E   L I B R A R Y                */
/*                                                             */
/*    NAME: milpsl0                                            */
/*   TITLE: Getting Started Example (milpsl0)                  */
/* PRODUCT: OR                                                 */
/*  SYSTEM: ALL                                                */
/*    KEYS: OR                                                 */
/*   PROCS: OPTMODEL                                           */
/*    DATA:                                                    */
/*                                                             */
/* SUPPORT:                             UPDATE:                */
/*     REF:                                                    */
/*    MISC: Example from the Getting Started section of the    */
/*          Mixed Integer Linear Programming Solver chapter of */
/*          Mathematical Programming.                          */
/*                                                             */
/***************************************************************/

proc optmodel;
var x{1..3} >= 0 integer;

min f = 2*x[1] - 3*x[2] - 4*x[3];

con r1: -2*x[2] - 3*x[3] >= -5;
con r2: x[1] + x[2] + 2*x[3] <= 4;
con r3: x[1] + 2*x[2] + 3*x[3] <= 7;

solve with milp / presolver = automatic heuristics = automatic;
print x;
quit;

%put &_OROPTMODEL_;

proc optmodel printlevel=2;
var x{1..3} >= 0 integer;

min f = 2*x[1] - 3*x[2] - 4*x[3];

con r1: -2*x[2] - 3*x[3] >= -5;
con r2: x[1] + x[2] + 2*x[3] <= 4;
con r3: x[1] + 2*x[2] + 3*x[3] <= 7;

solve with milp;
quit;

```