/* 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
Binary Tree Traversal: Traverse the tree to identify and count the leaf nodes. Recursion: Use recursion to count the leaves in the left and right subtrees. 3: P-lan Plan the solution with appropriate visualizations and pseudocode. General Idea: Traverse the tree recursively, checking if each ...
A Perfect Binary Tree(PBT) is a tree with all leaf nodes at the same depth. All internal nodes have degree 2. 二叉树的第i层至多拥有 个节点数;深度为k的二叉树至多总共有 个节点数,而总计拥有节点数匹配的,称为“满二叉树”; 完满二叉树 (Full Binary Tree): A Full Binary Tree (FBT) is a...
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 a complete binary tree, count the number of nodes. Definition of a complete binary tree fromWikipedia: In a complete binary tree every level, except possibly the last, is completely filled, and all nodes in the last level are as far left as possible. It can have between 1 and 2h...
Given a complete binary tree, count the number of nodes. In a complete binary tree every level, except possibly the last, is completely filled, and all nodes in the last level are as far left as possible. It can have between 1 and 2h nodes inclusive at the last level h. ...
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 ...
leetcode:107. Binary Tree Level Order Traversal II 107. Binary Tree Level Order Traversal II Description Given a binary tree, return the bottom-up level order traversal of its nodes' values. (ie, from left to right, level by level from leaf to root). ......
Given a binary tree, count the number of uni-value subtrees. A Uni-value subtree means all nodes of the subtree have the same value. Example Example1 代码语言:javascript 代码运行次数:0 运行 AI代码解释 Input: root = {5,1,5,5,5,#,5} Output: 4 Explanation: 5 / \ 1 5 / \ \ 5...
Given a binary tree and an integerk, count the total number of paths in the tree whose sum of all nodes is equal tok. 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. Alternatively put, a path...