Concepts2
🗂️Data StructureAdvanced
Sqrt Tree
A sqrt tree is a layered block-decomposition data structure that answers range queries in O(1) time after O(n \log \log n) preprocessing.
#sqrt tree#range query#associative operation+11
🗂️Data StructureIntermediate
Sqrt Decomposition
Sqrt decomposition partitions an array into about \(\sqrt{n}\) blocks, each of size about \(\sqrt{n}\), to speed up range queries and updates.
#sqrt decomposition#block decomposition#bucket decomposition+11