/* To get the count of leaf nodes in a binary tree */ public static int getLeafCountOfBinaryTree(TreeNode node) { if(node == null) return 0; if(node.left == null && node.right == null) return 1; else return getLeafCountOfBinaryTree(node.left) + getLeafCountOfBinaryTree(node...
Here is the source code of a Python program to count the number of leaf nodes in a tree. The program output is shown below. classTree:def__init__(self,data=None):self.key=dataself.children=[]defset_root(self,data):self.key=datadefadd(self,node):self.children.append(node)defsearch(...
classSolution {public:intcountNodes(TreeNode*root) {inthLeft =leftHeight(root);inthRight =rightHeight(root);if(hLeft == hRight)returnpow(2, hLeft) -1;returncountNodes(root->left) + countNodes(root->right) +1; }intleftHeight(TreeNode*root) {if(!root)return0;return1+ leftHeight(roo...
What is a leaf node in a binary tree? A leaf node is a node that does not have any children. How should the function behave if the tree is empty? The function should return 0 if the tree is empty. HAPPY CASE Input: A binary tree with three leaf nodes Output: 3 Explanation: Th...
Given a binary tree and an integer k, count the total number of paths in the tree whose sum of all nodes is equal to k. The path can be any path that is on the root-to-leaf path in the binary tree, or it can be a direct path from the root to a leaf.
A binary tree is a special type of non-linear data structure where every node may contain a single child node, two child nodes, or no child node. A node can have at most two child nodes in this hierarchical data structure. In a binary tree, child nodes ...
/* C Program to find the number of leaf nodes in a Tree */ #include <stdio.h> #include <stdlib.h> structnode { intinfo; structnode*left,*right; }; /* * Function to create new nodes */ structnode*createnode(intkey) { structnode*newnode=(structnode*)malloc(sizeof(structnode));...
Given the root of a binary tree, return the number of nodes where the value of the node is equal to the sum of the values of its descendants. A descendant of a node x is any node that is on the path from node x to some leaf node. The sum is considered to be 0 if the node ...
Given therootof a binary tree, returnthe number of nodes where the value of the node is equal to the sum of the values of its descendants. A descendant of a nodexis any node that is on the path from nodexto some leaf node. The sum is considered to be0if the node has no descend...
/** * Definition for a binary tree node. * type TreeNode struct { * Val int * Left *TreeNode * Right *TreeNode * } */ /** * @param root: the given tree * @return: the number of uni-value subtrees. */ func countUnivalSubtrees (root *TreeNode) int { var res = 0 if roo...