deletions | additions       diff --git a/Rectangle_Point_Query_We_represent__.md b/Rectangle_Point_Query_We_represent__.md  index 6070996..70440a6 100644  --- a/Rectangle_Point_Query_We_represent__.md  +++ b/Rectangle_Point_Query_We_represent__.md 
...
#Rectangle Point-Query  We represent a rectangle rectangles  as a 4-tuple of points corresponding to the rectilinear boundaries. We pre-process these points into a kd-tree then range search. ## Algorithm and Running Time