Calculating Subgrid Intersections in a Partitioned Matrix
Consider a rectangular coordinate grid with dimensions N rows by M columns. This grid is uniformly partitioned into rectangular blocks, each measuring R rows by C columns. The partitioning guarantees that N is a multiple of R and M is a multiple of C.
Given a query rectangle defined by its top-left coordinate (X₁, Y₁) and bottom-right coordinat ...
Posted on Wed, 08 Jul 2026 16:14:59 +0000 by phprock