Depth-first Search – (Preorder, Inorder, and Postorder)

This lecture provides a theoretical overview of tree traversal methods: preorder, inorder, and postorder. It explains a trick to derive these traversals, emphasizing that this method is not suitable for coding or interviews but useful for theoretical understanding. The lecture details how to perform each traversal and concludes with a generalization of the methods.

What new insight or understanding did you gain from this video?