Fenwick Tree point updates
6:29
Fenwick Tree construction
13:45
Fenwick Tree range queries
12:39
Understanding B-Trees: The Data Structure Behind Modern Databases
18:01
Binary Lifting (Kth Ancestor of a Tree Node)
10:53
Union Find - Union and Find Operations
26:32
Sum of given range | Segment tree construction and update | Simplest explanation
23:18
Sparse Table Data Structure
19:54