code: def do_intersect(bb1, bb2):
      
      if bb1[0] + bb1[2] < bb2[0] or bb2[0] + bb2[2] < bb1[0]:
          return False
      if bb1[1] + bb1[3] < bb2[1] or bb2[1] + bb2[3] < bb1[1]:
          return False
      return True
docs: Helper function that returns True if two bounding boxes overlap.