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🗂️Data StructureAdvanced

Persistent Segment Tree

A persistent segment tree stores every historical version of an array-like data while supporting queries and updates in O(log n) time.

#persistent segment tree#path copying#kth smallest+12
🗂️Data StructureIntermediate

Merge Sort Tree

A Merge Sort Tree is a segment tree where every node stores the sorted list of values in its segment.

#merge sort tree
12
Advanced
Filtering by:
#coordinate compression
#segment tree
#range query
+12
🗂️Data StructureIntermediate

2D Fenwick Tree

A 2D Fenwick Tree (Binary Indexed Tree) supports point updates and rectangle sum queries in O(log n × log m) time.

#2d fenwick tree#binary indexed tree 2d#bit 2d+12
🗂️Data StructureBeginner

Array and Vector

Arrays and vectors store elements contiguously, giving O(1) random access via index.

#std::vector#dynamic array#reserve+12