public void linkup(LeftHeapNode v) {
if ((this.getParent() != null) && (v != null)) {
final LeftHeapNode tmp = this.getParent();
v.setRight(this);
this.setParent(v);
v.setParent(tmp);
v.getParent().setRight(v);
}
}
public LeftHeapNode(LeftHeapNode v) {
this(v.D, v.getKey(), v.x, v.y);
}
