Concepts3
⚙️AlgorithmAdvanced
Sqrt Decomposition on Queries
Sqrt decomposition on queries (time blocking) processes Q operations in blocks of size about \(\sqrt{Q}\) to balance per-query overhead and rebuild cost.
#sqrt decomposition#time blocking#query blocking+12
⚙️AlgorithmAdvanced
CDQ Divide and Conquer
CDQ divide and conquer is an offline technique that splits the timeline (or one coordinate) and lets updates from the left half contribute to queries in the right half.
#cdq divide and conquer#offline algorithm#fenwick tree+11
🗂️Data StructureAdvanced
Dynamic Segment Tree
A dynamic segment tree stores values over a huge coordinate range by creating nodes only when an operation touches their interval.
#dynamic segment tree#sparse segment tree#lazy propagation+12