# Tag Archive | Recursion

## Non-recursive algorithm to find the pre-order successor of a given node in a BST

Question: Write a non-recursive algorithm to find the pre-order successor of a given node in a BST. Solution: Let me tell you the background first. There are basically three kind of traversal for a binary tree. Each traversal is named on the basis of processing of root node. For example in preorder traversal, root will […]