/*** Definition for a binary tree node. * public class TreeNode { * int val; * TreeNode left; * TreeNode right; * TreeNode(int x) { val = x; } * }*/classSolution {publicArrayList<Integer>bfs(TreeNode root){ Arr
我的python代码: 1#Definition for a binary tree node.2#class TreeNode(object):3#def __init__(self, x):4#self.val = x5#self.left = None6#self.right = None78classSolution(object):9defaverageOfLevels(self, root):10"""11:type root: TreeNode12:rtype: List[float]13"""14levels = ...
The range of node's value is in the range of 32-bit signed integer. classSolution {publicList<Double>averageOfLevels(TreeNode root) { List<Double> result =newArrayList<>(); Queue<TreeNode> q =newLinkedList<>();if(root ==null)returnresult; q.add(root);while(!q.isEmpty()) {intn =...
The range of node's value is in the range of 32-bit signed integer. 思路: 本题具体思路是使用二叉树的层次遍历法,具体可以参考以前写的一篇博客:107.Binary Tree Level Order Traversal II要注意的是,在求平均值时,求和可能会溢出,所以代码中将数据类型定义为long,详情请查看accumulate的相关用法及注意点 ...
Average of Levels in Binary Tree Given a non-empty binary tree, return the average value of the nodes on each level in the form of an array. Example 1: Input: 3 / \ 9 20 / \ 15 7 Output: [3, 14.5, 11] **Explanation:** The average value of nodes on level 0 is 3, on ...
Given a non-empty binary tree, return the average value of the nodes on each level in the form of an array. Example 1: Input: 3 / \ 9 20 / \ 15 7 Output: [3, 14.5, 11] Explanation: The average value of nodes on level 0 is 3, on level 1 is 14.5, and on level 2 is 11...
The fill-up level is the number of full levels in a tree. A level is full if it contains the maximum allowable number of nodes (e.g., in a binary tree level k can have up to 2k nodes). The fill-up level finds many interesting applications, e.g., in the internet IP lookup ...
In this problem, we are given a binary tree and we have to print all nodes at a level in sorted order of their values. Let’s take an example to understand the concept better, Input − Output − 20 6 15 2 17 32 78 To solve this problem, we need to print a sorted order of...
In binary classification, this hyperplane serves as the decision boundary, maximizing the margin, which is the distance between the hyperplane and the nearest data points from each class; hence, the term SVM refers to these crucial data points. Various researchers have employed SVM for forecasting ...
0114 Flatten Binary Tree to Linked List 二叉树展开为链表 README C++ 0116 Populating Next Right Pointers in Each Node 填充每个节点的下一个右侧节点指针 README C++ 0117 Populating Next Right Pointers in Each Node II 填充每个节点的下一个右侧节点指针 II README C++ 0118 Pascal's Triangle 杨辉三角...