Graph Traversal Uses In addition to finding paths, we can use graph traversals to answer: What are all the vertices reachable from a starting vertex? Is an undirected graph connected? Is a directed graph …

Complexity of Binary Tree Traversals Each traversal requires constant work at each node (not including recursive calls) Order not important Iterating over all n elements in a tree requires O(n) time

• Proposition: Let G be an undirected graph on which a a BFS traversal starting at vertex s has been performed. Then - The traversal visits all vertices in the connected component of s.

Recursive Tree Traversals A traversal iterates over all nodes of the tree Usually using a depth-first, recursive approach Three general traversal orderings Pre-order [Process root then visit subtrees]

Basic Traversal and Search Techniques. Traversal vs Search Definition 1 Traversal of a binary tree involves examining every node in the tree. Definition 2 Search involves visiting nodes in a graph in …

h algorithms in general. There's another way to do the traversal, called depth-first search, which turns out to be far more useful, because it can be extended to help solve a wide variety of more diff

The tree represents the arithmetic expression (in infix form). Inorder traversal (LVR): A/B*C*D+E Preorder traversal (VLR): +**/ABCDE Postorder traversal (LRV): AB/C*D*E+