Python program to find diameter of a binary tree.














































Python program to find diameter of a binary tree.



Description:
The diameter of binary tree  is a longest path or route between any two any nodes in a tree. The path may or may not pass through the route.The diameter of tree also called its width is the number of nodes on the longest path between two end nodes.

Example:

Diameter 9 nodes through root                                                               Diameter 9 nodes not through root 

Program:

class BTNode: def __init__(self, data): self.data = data self.left = None self.right = None def height(node): if node is None: return 0 ; return 1 + max(height(node.left) ,height(node.right)) def diameter(root): if root is None: return 0; left_height = height(root.left) right_height = height(root.right) left_diameter = diameter(root.left) right_diameter = diameter(root.right) return max(left_height + right_height + 1, max(left_diameter, right_diameter)) root = BTNode(1) root.left = BTNode(2) root.right = BTNode(3) root.left.left = BTNode(4) root.left.right = BTNode(5) print("Diameter of given binary tree is :",(diameter(root)))


Output:

Diameter of given binary tree is : 4
>>> 


More Articles of Khushboo Singh:

Name Views Likes
Python program to insert an element in binary tree. 867 20
Tokenize text using NLTK in Python. 1251 12
Python Remove multiple elements from list while Iterating. 774 22
Python How to Check if an item exists in list ? 4322 14
Python How to remove multiple elements from list ? 788 26
Python program to check if two trees are mirror of each other without using recursion. 695 19
Python program to find maximum in Binary tree. 974 19
Python Check if all elements are same using Set 752 15
Python program to find diameter of a binary tree. 1127 20
Python program to print root to leaf paths without using recursion. 870 20
Python program to find root of the tree where children id sum for every node is given. 710 23
Introduction of Python NLTK library 1405 25
Categorizing and Tagging Sentences using NLTK in Python . 1062 19
Python program to find height of a tree without using recursion. 690 16
Python program to find sum of all nodes of the given perfect binary tree. 696 19
Python program to find minimum in binary tree. 860 23
Python Check if element exist in list using list.count() function. 723 13
Python program to convert a given binary tree to doubly linked list. 923 20
Python program to find distance between two nodes of a binary tree. 1561 20
NLTK stop Words 1196 13
Python program to find largest binary search tree in a Binary Tree. 973 20
Python program to find inorder successor in binary search tree with recursion. 1245 18
Python program to convert a binary tree into doubly linked list in spiral fashion. 828 15
Python List check if element are same using all() 713 12
Python program to check if two trees are identical using recursion. 739 30
Python Find the occurrence count of an element in the tuple using count() 1001 23
Python Convert two lists to a dictionary 761 19
Python program to construct a complete binary tree from given array. 1480 14
Python program to find diameter of binary tree in O(n). 908 17
Introduction to the AVL tree. 810 15
Python program to check if two trees are identical without using recursion 693 17
Python Convert a list of tuples to dictionary. 1134 24
Python program to convert a binary tree to a circular doubly link list. 688 21
Python Check if element exist in list based on own logic. 787 23
Python program to merge two binary trees by doing node sum using recursion 1042 27
Python program to check whether a given binary tree is perfect or not. 712 17
Python Check if all elements are same using list.count(). 1126 28
Python program to find an element into binary tree 658 12
Python program to find lowest common ancestor in a binary tree 1254 24

Comments