importcom.kaesar.leetcode.TreeNode;importjava.util.LinkedList;importjava.util.Queue;publicclassLeetCode_222 {/*** 二叉树层序遍历** @param root* @return*/publicstaticintcountNodes(TreeNoderoot) {// 如果根节点为空，即为空树，说明没有节点，直接返回0if (root==null) {return; }// 利用队列...
}intcountNodes(TreeNode*root) {inth = getHeight(root,0);intmaxCnt = pow(2, h) -1;intl =0, r = maxCnt, m, ans =0;while(l <=r){ m= (l + r)>>1;intonePos =getTheBinaryOnePos(m);if(checkHaveIndex(root, m, onePos)){if(ans < m) ans =m; l= m +1; }else{ r=...
Can you solve this real interview question? Count Complete Tree Nodes - Given the root of a complete binary tree, return the number of the nodes in the tree. According to Wikipedia [http://en.wikipedia.org/wiki/Binary_tree#Types_of_binary_trees], every
Given a complete binary tree, count the number of nodes. Definition of a complete binary tree from Wikipedia: 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...
【Leetcode】Count Complete Tree Nodes https://leetcode.com/problems/count-complete-tree-nodes/ 题目: complete 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...
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. ...
Count Complete Tree Nodes完全二叉树的节点个数【Medium】【Python】【二叉树】 Problem LeetCode Given a complete binary tree, count the number of nodes. Note: Definition of a complete binary tree from Wikipedia: In a complete binary tree every level, except possibly the last, is completely filled...
3.当右子树不存在而左子树存在时,递归1 + countNodes(root->left); 4.当左右子树都不存在时,递归结束,返回1。 代码 /** * Definition for a binary tree node. * struct TreeNode { * int val; * TreeNode *left; * TreeNode *right; * TreeNode(int x) : val(x), left(NULL), right(NULL)...
//#222Description: Count Complete Tree Nodes | LeetCode OJ 解法1:可以二分。 // Solution 1: Binary search. 代码1 //Code 1 223 Rectangle Area // #223 矩形面积 描述:给定两个横平竖直的矩形,求总覆盖面积。 //#223Description: Rectangle Area | LeetCode OJ ...
classSolution{publicintcountNodes(TreeNode root){if(root==null){return0;}int level=0;TreeNode node=root;while(node.left!=null){level++;node=node.left;}int low=1<<level,high=(1<<(level+1))-1;while(low<high){int mid=(high-low+1)/2+low;if(exists(root,level,mid)){low=mid;}els...