import mit16_410_13.*;

public class LPSolve
{	 
    public static void main (String [] args) throws Exception
    {
			LPXMLReader reader=new LPXMLReader();

			Simplex problem=reader.readLP(args[0]);
			problem.describeProblem(System.out);
			try { 
				switch (problem.solveProblem()) {
					case 1:
						System.out.println("Unbounded objective function.");
						break;
					case -1:
						System.out.println("No solutions satisfy constraints given.");
						break;
					default:
						System.out.print("\n\nSolved in ");
						System.out.print(problem.getSolutionTime()/1000.0);
						System.out.println(" seconds.\n");
						problem.printSolution(System.out);
				}
			}
			catch (SimplexException e) { System.out.println("Simplex Exception"); }
		}
}
// Fin