The video talks about the AVL Tree data structure and how its self balancing property is implemented with rotations. It goes over insertions and deletions as well.
Code Implementation:
Insertion: https://www.geeksforgeeks.org/insertion-in-an-avl-tree/
Overview: https://www.javatpoint.com/avl-tree
Visualizer:
https://www.cs.usfca.edu/~galles/visualization/AVLtree.html