INIT_QUADTREE(5,1)
CREATE_RECTANGLE(R2D2,14,14,4,4)
CREATE_RECTANGLE(IG88,20,20,2,2)
CREATE_RECTANGLE(U3PO,16,16,8,8)
INSERT(IG88)
TRACE ON
REGION_SEARCH(R2D2)
TRACE OFF
INSERT(U3PO)
TRACE ON
REGION_SEARCH(R2D2)
TRACE OFF
