Western Governors University (WGU) ICSC2100 C949 Data Structures and Algorithms I Practice Exam

In-order traversal of a binary search tree (BST) visits nodes in a specific sequence: it first traverses the left subtree, then visits the root node, and finally traverses the right subtree. This systematic approach takes advantage of the properties of a binary search tree, where all nodes in the left subtree of any given node contain values less than the node’s value, and all nodes in the right subtree contain values greater than the node’s value.

As a result, when you perform an in-order traversal on a BST, you naturally encounter the nodes in ascending order of their values. This means that the output will be the sorted order of the nodes’ values, making it an effective way to retrieve sorted data from a binary search tree.