How to Balance an AVL Tree? A Complete Rotation Guide
An AVL tree insertion example is a simple way to understand how AVL trees maintain balance. Suppose the values 100, 90, and 80 are inserted into an empty tree. Since each value is inserted into the left subtree, the tree becomes unbalanced with a Left-Left case. A single Right Rotation is performed, making 90 the new root while 80 and 100 become its left and right children. This rotation restores balance without affecting the binary search tree property.