Category: Binary Tree

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Check the completeness of given binary tree | Set 2 – Using Level Order Traversal

Objective: Given a binary tree, write an algorithm to determine whether the tree is complete or not using Level order traversal. Earlier we had solved this problem by counting the number of nodes in...

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Check the completeness of given binary tree | Set 1 – Using Node Count

Objective: Given a binary tree, write an algorithm to determine whether the tree is complete or not.  Complete Binary Tree: A binary tree T with n levels is complete if all levels except possibly...

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Count the number of nodes in a given binary tree

Objective: Given a binary tree, write an algorithm to count all the nodes in the tree. Example: Approach: Do postorder traversal. If the root is null return 0. (base case all well for the...

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Convert Binary Tree into Threaded Binary Tree

Objective: Given a binary tree write an algorithm to convert it into threaded binary tree. Note: Tree node has extra Boolean field to be used. In earlier article “Introduction to Threaded Binary Tree” we...

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Double Threaded Binary Tree Complete Implementation

In earlier article “Introduction to Threaded Binary Tree” we have seen what is threaded binary tree, types of it and what advantages it has over normal binary tree. In this article we will see...

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Single Threaded Binary Tree Complete Implementation

In earlier article “Introduction to Threaded Binary Tree” we have seen what is threaded binary tree, types of it and what advantages it has over normal binary tree. In this article we will see...

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Convert BST to Greater Sum Tree

Objective: Given a binary search tree (BST), convert it into greater sum tree. What is greater sum tree: Greater sum tree is a tree in which every node contains the sum of all the...

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Get the Sum of all left leaves in a Binary tree

Objective: Given a binary tree, find the sum of all the nodes which are left as well as leaves nodes. Example:     Approach: Approach is quite simple. Do the inorder traversal check if...

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Delete the Binary Tree

Objective: Given a binary tree, write an algorithm to delete it. This is one of the basic problem in trees. if you are new to trees then this problem will help you build your...

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