Introduction
This is the seventh article in the Tree Traversals - Online Classes.
This article presents ways to find out inorder predecessor of node in binary tree. As we have already read about the Inorder Successor it wont take much effort to understand the predecessor.
Definition - Inorder Predecessor of node in Binary Tree
If a node K is called the inorder predecessor of node N then N must be visited immediately after K in a inorder traversal of the tree.
Below is a more formal definition of Inorder Predecessor:
If the node has a left sub-tree, then inorder predecessor is the ...

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# trees

## Inorder Successor of node in Binary Tree Using Parent Pointer

Introduction
This is the sixth article in the Tree Traversals - Online Classes.
This article presents ways to find out inorder successor of node in binary tree. Before we jump into the code it would be good to correctly define the meaning of the problem.
Definition - Inorder Successor of node in Binary Tree
If a node K is called the inorder successor of node N then K must be visited immediately after N in a inorder traversal of the tree.
Below is a more formal definition of Inorder Successor:
If the node has a right sub-tree, then inorder successor is the left most node of the rig...

Read More