public IConstr addExactly(IVecInt literals, IVec<BigInteger> coeffs, BigInteger weight)
throws ContradictionException {
StringBuffer out = getOut();
assert literals.size() == coeffs.size();
this.nbOfConstraints++;
int n = literals.size();
if (n > 0) {
out.append(coeffs.get(0));
out.append("x");
out.append(literals.get(0));
out.append(" ");
}
BigInteger coeff;
for (int i = 1; i < n; i++) {
coeff = coeffs.get(i);
if (coeff.signum() > 0) {
out.append("+ " + coeff);
} else {
out.append("- " + coeff.negate());
}
out.append("x");
out.append(literals.get(i));
out.append(" ");
}
out.append("= ");
out.append(weight);
out.append(" \n");
return FAKE_CONSTR;
}
public void objectiveFunctionToLP(ObjectiveFunction obj, StringBuffer buffer) {
buffer.append("Minimize \n");
buffer.append("obj: ");
IVecInt variables = obj.getVars();
IVec<BigInteger> coeffs = obj.getCoeffs();
int n = variables.size();
if (n > 0) {
buffer.append(coeffs.get(0));
buffer.append("x");
buffer.append(variables.get(0));
buffer.append(" ");
}
BigInteger coeff;
for (int i = 1; i < n; i++) {
coeff = coeffs.get(i);
if (coeff.signum() > 0) {
buffer.append("+ " + coeff);
} else {
buffer.append("- " + coeff.negate());
}
buffer.append("x");
buffer.append(variables.get(i));
buffer.append(" ");
}
}