PriorityQueue constructor
PriorityQueue()
Creates a new empty priority queue
Implementation
PriorityQueue() {
_size = 0;
_items = [];
// create space for sentinel
_items.add(null);
}
Creates a new empty priority queue
PriorityQueue() {
_size = 0;
_items = [];
// create space for sentinel
_items.add(null);
}