public static void main(String[] args) {
RuleModel m = new RuleModel();
m.buildConsecutiveWERule();
m.buildNoNightBeforeFreeWE();
m.buildNoMoreThanDayRule();
m.buildRestAfterNight();
m.buildCompleteWE();
m.fillModel();
m.addLexConstraint();
m.addMandatoryShift();
m.addMinCoverConstraint();
CPSolver s = new CPSolver();
s.read(m);
ArrayList<IntDomainVar> mars = new ArrayList<IntDomainVar>();
for (int i = 0; i < 8; i++) mars.add(s.getVar(m.cvs[i][4]));
int[][] lowb = new int[28][3];
{
for (int i = 0; i < lowb.length; i++) {
lowb[i][0] = 3;
lowb[i][1] = 1;
lowb[i][2] = 4;
}
}
CoverVarValSelector sel = new CoverVarValSelector(s, m.vs, lowb);
// s.attachGoal(new AssignVar(sel,sel));
// s.attachGoal(new AssignVar(new StaticVarOrder(mars.toArray(new IntDomainVar[8])),new
// DecreasingDomain()));
s.attachGoal(
new AssignVar(
new StaticVarOrder(s, s.getVar(ArrayUtils.flatten(ArrayUtils.transpose(m.vs)))),
new IncreasingDomain()));
// s.addGoal(new AssignVar(new
// RandomIntVarSelector(s,s.getVar(ArrayUtils.flatten(ArrayUtils.transpose(m.vs))),0),new
// RandomIntValSelector()));
if (s.solve()) {
int i = 0;
for (IntegerVariable[] va : m.vs) {
for (IntDomainVar v : s.getVar(va)) {
System.out.print(toChar(v.getVal()) + " ");
}
System.out.print(" | ");
for (IntDomainVar v : s.getVar(m.cvs[i++])) {
System.out.print(v.getVal() + " ");
}
System.out.println("");
}
}
s.printRuntimeStatistics();
}
public void addMinCoverConstraint() {
IntegerVariable[] worked = ArrayUtils.transpose(cvs)[4];
IntegerVariable[] night = ArrayUtils.transpose(cvs)[5];
IntegerVariable[] rest = ArrayUtils.transpose(cvs)[6];
// 3 days and 1 night per day -> 4*28 working days
this.addConstraint(eq(sum(worked), 4 * 28));
this.addConstraint(eq(sum(night), 28));
this.addConstraint(eq(sum(rest), 28 * 4));
IntegerVariable[] week0 = ArrayUtils.transpose(cvs)[0];
this.addConstraint(eq(sum(week0), 4 * 7));
IntegerVariable[] week1 = ArrayUtils.transpose(cvs)[1];
this.addConstraint(eq(sum(week1), 4 * 7));
IntegerVariable[] week2 = ArrayUtils.transpose(cvs)[2];
this.addConstraint(eq(sum(week2), 4 * 7));
IntegerVariable[] week3 = ArrayUtils.transpose(cvs)[3];
this.addConstraint(eq(sum(week3), 4 * 7));
}
void fillModel() {
vs = makeIntVarArray("x", 8, 28, 0, 2);
int[][][] csts = new int[vs[0].length][3][7];
for (int i = 0; i < csts.length; i++) {
for (int j = 0; j < csts[i].length; j++) {
if (j == 0 || j == 1) csts[i][j][4] = 1;
if (j == 1) csts[i][j][5] = 1;
if (j == 2) csts[i][j][6] = 1;
if (j == 0 || j == 1) {
csts[i][j][i / 7] = 1;
}
}
}
cvs = new IntegerVariable[8][7];
for (int i = 0; i < 4; i++) {
IntegerVariable[] tmp = cvs[i];
tmp[4] = makeIntVar("z_{" + i + ",0}", 0, 18, Options.V_BOUND);
tmp[5] = makeIntVar("z_{" + i + ",1}", 0, 4, Options.V_BOUND);
tmp[6] = makeIntVar("z_{" + i + ",2}", 10, 28, Options.V_BOUND);
for (int j = 0; j < 4; j++)
tmp[j] = makeIntVar("z_{" + i + "," + j + "}", 4, 5, Options.V_BOUND);
this.addVariables(tmp);
// this.addConstraint(eq(minus(tmp[4],28),minus(0,tmp[6])));
this.addVariables(vs[i]);
}
for (int i = 4; i < 8; i++) {
IntegerVariable[] tmp = cvs[i];
tmp[4] = makeIntVar("z_{" + i + ",0}", 0, 10, Options.V_BOUND);
tmp[5] = makeIntVar("z_{" + i + ",1}", 0, 4, Options.V_BOUND);
tmp[6] = makeIntVar("z_{" + i + ",1}", 18, 28, Options.V_BOUND);
for (int j = 0; j < 4; j++)
tmp[j] = makeIntVar("z_{" + i + "," + j + "}", 2, 3, Options.V_BOUND);
this.addVariables(tmp);
// this.addConstraint(eq(plus(tmp[4],tmp[6]),28));
this.addVariables(vs[i]);
}
FiniteAutomaton auto = new FiniteAutomaton();
auto.fill(full, alpha);
for (int i = 0; i < 8; i++) {
Constraint mr = multiCostRegular(cvs[i], vs[i], auto, csts);
this.addConstraint(mr);
}
int[] low = {3, 1, 4};
int[] up = {3, 1, 4};
IntegerVariable[][] trans = ArrayUtils.transpose(vs);
for (int i = 0; i < 28; i++) {
this.addConstraint(Options.C_GCC_BC, globalCardinality(trans[i], low, up, 0));
}
}