Course Notes, Practice Problems, and Solutions

Week 5:   AVL Trees, 2-3 trees, B-trees
      AVL Trees, B-Trees, 2-3 Trees
      AVL left-right rotation example
      AVL insert and leftleft rotation code

Supplementary material
      Video (Tushar Roy):   AVL Tree insertion   Okay to stop when he gets to the code..
      Video (GeeksforGeeks):   AVL Tree insertion

      Video (distancejohn):   2-3 Tree insertion
      Video (David Taylor):   2-3 Tree insertion   Beginning is BST; start at 5:47.

Practice Problems
      AVL tree problems     .................. prob 1 solution   prob 2 solution
      2-3 tree problems     .................. solution
      Problems from lecture     .................. solution