C++ (Cpp) IloIntVarArray Examples

Example #1

File: main.cpp Project: drhachmann/PLI_TP2

static void
populatebyrow (IloModel model, IloIntVarArray x, IloRangeArray c)
{
   IloEnv env = model.getEnv();

   x.add(IloIntVar(env, 0.0));
   x.add(IloIntVar(env, 0.0));
   x.add(IloIntVar(env, 0.0));
   x.add(IloIntVar(env, 2.0));
   model.add(IloMaximize(env, x[0] + 2 * x[1] + 3 * x[2] + x[3]));

   c.add( - x[0] +     x[1] + x[2] + 10 * x[3] <= 20);
   c.add(   x[0] - 3 * x[1] + x[2]             <= 30);
   c.add(              x[1]        - 3.5* x[3] == 0);
   model.add(c);

}  // END populatebyrow

Example #2

File: main.cpp Project: drhachmann/PLI_TP2

static void
populatebynonzero (IloModel model, IloIntVarArray x, IloRangeArray c)
{
   IloEnv env = model.getEnv();

   IloObjective obj = IloMaximize(env);
	int n, a;
	scanf("%d", &n);

		
	scanf("%d", &a);
	//restrição
   c.add(IloRange(env, -IloInfinity, a));

	//variaveis
	for(int i=0 ; i<n; i++){
		x.add(IloIntVar(env, 0, 1));
	}

   /*x.add(IloIntVar(env, 0.0, 40.0));
   x.add(IloIntVar(env));
   x.add(IloIntVar(env));*/

	
   /*obj.setLinearCoef(x[0], 1.0);
   obj.setLinearCoef(x[1], 2.0);
   obj.setLinearCoef(x[2], 3.0);*/

	/*restricoes*/
	for(int i=0 ; i<n; i++){
		scanf("%d", &a);
		c[0].setLinearCoef(x[i], a);
	}

	//objetivo	
	for(int i=0 ; i<n; i++){
		scanf("%d", &a);
		obj.setLinearCoef(x[i], a);
	}
   
   /*c[0].setLinearCoef(x[1],  1.0);
   c[0].setLinearCoef(x[2],  1.0);
   c[1].setLinearCoef(x[0],  1.0);
   c[1].setLinearCoef(x[1], -3.0);
   c[1].setLinearCoef(x[2],  1.0);*/

   c[0].setName("c1");
	for(int i=0; i<n; i++){
		char tmp[10];
		printf("x%d", i+1);
		x[i].setName(tmp);	
	}

   model.add(obj);
   model.add(c);
}  // END populatebynonzero

Example #3

File: main.cpp Project: drhachmann/PLI_TP2

static void
populatebycolumn (IloModel model, IloIntVarArray x, IloRangeArray c)
{
   IloEnv env = model.getEnv();

   IloObjective obj = IloMaximize(env);
   c.add(IloRange(env, -IloInfinity, 20.0, "c1"));
   c.add(IloRange(env, -IloInfinity, 30.0, "c2"));

   x.add(IloIntVar(obj(1.0) + c[0](-1.0) + c[1]( 1.0), 0.0, 40.0));
   x.add(IloIntVar(obj(2.0) + c[0]( 1.0) + c[1](-3.0)));
   x.add(IloIntVar(obj(3.0) + c[0]( 1.0) + c[1]( 1.0)));

   x[0].setName("x1");
   x[1].setName("x2");
   x[2].setName("x3");

   model.add(obj);
   model.add(c);

}  // END populatebycolumn

Example #4

File: searchphases.cpp Project: andreasmattas/testcode

 IloInt choose(IloCP cp, IloIntVarArray vars) {
   IloNum best = IloInfinity;
   IloInt bestIndex = -1;
   IloInt n = vars.getSize();
   for (IloInt i = 0; i < n; i++) {
     if (!cp.isFixed(vars[i])) {
       IloNum c = CalcCentroid(cp, vars[i]);
       if (c < best) {
         best = c;
         bestIndex = i;
       }
     }
   }
   return bestIndex;
 }

Example #5

File: iloglue.cpp Project: ManonRuffini/toulbar2-diverse

void wqueens(IloEnv& env, IloModel& model, IloIntVarArray& vars)
{
    cout << "Add 3 hard AllDiff constraints for the Queens problem." << endl;

    model.add(vars); // ensure vars are the main decision variables

    int nqueen = vars.getSize();

    IloIntVarArray vars1(env, nqueen, -2 * nqueen, 2 * nqueen);
    IloIntVarArray vars2(env, nqueen, -2 * nqueen, 2 * nqueen);

    for (IloInt i = 0; i < nqueen; i++) {
        model.add(vars1[i] == vars[i] + i);
        model.add(vars2[i] == vars[i] - i);
    }

    model.add(IloAllDiff(env, vars));
    model.add(IloAllDiff(env, vars1));
    model.add(IloAllDiff(env, vars2));
}

Example #6

File: iloglue.cpp Project: ManonRuffini/toulbar2-diverse

void quasi(IloEnv& env, IloModel& model, IloIntVarArray& vars)
{
    int n = sqrt((double)vars.getSize());
    cout << "Add " << n * 2 << " hard AllDiff constraints for the \"homogeneous\" QuasiGroup problem." << endl;
    for (int i = 0; i < n; i++) {
        int pos = i * n;
        IloIntVarArray vars1(env, n);
        for (int j = 0; j < n; j++) {
            vars1[j] = vars[pos];
            pos++;
        }
        model.add(IloAllDiff(env, vars1));
    }
    for (int j = 0; j < n; j++) {
        int pos = j;
        IloIntVarArray vars1(env, n);
        for (int i = 0; i < n; i++) {
            vars1[i] = vars[pos];
            pos += n;
        }
        model.add(IloAllDiff(env, vars1));
    }
}