Software Development, System Design Interview, Big Data, Getting Started, Geospatial.
represented by a string s₁s₂…sᵢ, then all of the subquadrants it contains, are represented by strings x such as s₁s₂…sᵢ < x < s₁s₂…sⱼ, where sⱼ is the next character after sᵢ in the lexicographical order. Lexicographical order in quadtrees helps to rapidly identify all the subregions contained