/**
* Constructs the root node in the solution space of a
* this scales balancing problem.
*/
public function __construct(ScalesBalancingProblem $problem)
{
parent::__construct();
$this->problem = $problem;
$this->diff = 0;
$this->unplacedTotal = 0;
$this->numberPlaced = 0;
$this->pan = new BasicArray($this->problem->getNumberOfWeights());
$weights = $this->problem->getWeights();
for ($i = 0; $i < $this->problem->getNumberOfWeights(); ++$i) {
$this->unplacedTotal += $weights[$i];
}
}
/**
* Constructs the root node in the solution space of a
* this 0/1 knapsack problem.
*/
public function __construct(ZeroOneKnapsackProblem $problem)
{
parent::__construct();
$this->problem = $problem;
$this->totalWeight = 0;
$this->totalProfit = 0;
$this->unplacedProfit = 0;
$this->numberPlaced = 0;
$this->x = new BasicArray($this->problem->getNumberOfItems());
$profit = $this->problem->getProfit();
for ($i = 0; $i < $this->problem->getNumberOfItems(); ++$i) {
$this->unplacedProfit += $profit[$i];
}
}
