suppose the keys 3, 4, 45, 21, 92, 12 are inserted into a bst in this order. what is the preorder traversal of the elements after deleting 45 from the tree?
A simple strategy Return false if the value of the node's left child is greater than or equal to the node being used now.
How can you determine whether a particular tree is a BST or merely a BT?
A node-based binary tree data structure with the following characteristics is called a binary search tree (BST).
Only nodes with keys lower than a node's key are found in the node's left subtree.
Only nodes with keys higher than the node's key are found in a node's right subtree.
It is necessary for the left and right subtrees to be binary search trees as well.
A unique key is assigned to every node (tree item).
The goal is to determine whether the max value in the left subtree and the min value in the right subtree are greater than the node for each individual node.
