int BST_Insert(BSTree &T, int k, Node* parent=NULL) { if(T == NULL) { T = (BSTree)malloc(sizeof(Node)); T->key = k; T->left = NULL; T->right = NULL; T->parent = parent; return 1; // 返回1表示成功 }else if(...
class Solution { public int widthOfBinaryTree(TreeNode root) { int result = 0; Deque<TreeNode> deque = new ArrayDeque(); deque.addLast(new TreeNode(1, root.left, root.right)); while(!deque.isEmpty()) { int count = deque.size(), startIndex = -1, endIndex = -1; for (int i ...
link:[https://leetcode.com/explore/learn/card/data-structure-tree/134/traverse-a-tree/928/] 递归解法: #Definition for a binary tree node.#class TreeNode(object):#def __init__(self, x):#self.val = x#self.left = None#self.right = NoneclassSolution(object):defsolve(self,root):ifroo...
/** * Definition for a binary tree node. * struct TreeNode { * int val; * struct TreeNode *left; * struct TreeNode *right; * }; */ struct TreeNode* insertIntoBST(struct TreeNode* root, int val) { struct TreeNode* node = (struct TreeNode*)(malloc(sizeof(struct TreeNode)))...
计算树的节点数: 函数TreeSize用于递归地计算二叉树中的节点数。如果树为空(即根节点为NULL),则返回0。否则,返回左子树的节点数、右子树的节点数和1(表示当前节点)的总和。 代码语言:javascript 代码运行次数:0 运行 AI代码解释 /** * Definition for a binary tree node. ...
The size of the given array will be in the range [1,1000]. 题意:给定一个一维数组,里面的元素代表树的节点;现在要求构造一颗maximum tree;具体要求如下 根节点的值为数组中最大的那个数 左子树的根节点的值为最大数所在数组位置左半部分数组中的最大值 ...
(ans,0,root)returnans}funvisitLevel(ans:MutableList<MutableList<Int>>,level:Int,node:TreeNode?){if(null==node)return// level 从0 (root) 开始,此时 ans.size = 0; 每层的值存在 levelList 中. 这地方的代码非常巧妙.if(ans.size==level){val levelList=mutableListOf<Int>()ans.add(levelList...
You are given a binary tree in which each node contains an integer value.Find the number of paths that sum to a given value.The path does not need to start or end at the root or a leaf, but it must go downwards (traveling only from parent nodes to child nodes). The tree has no...
第C++实现LeetCode(108.将有序数组转为二叉搜索树)[LeetCode]108.ConvertSortedArraytoBinarySearchTree将有序数组转为二叉搜索树 Givenanarraywhereelementsaresortedinascendingorder,convertittoaheightbalancedBST. Forthisproblem,aheight-balancedbinarytreeisdefinedasabinarytreeinwhichthedepthofthetwosubtreesofeverynode...
Binary Tree Con.(6) Structure of Tree100 Same Tree101 Symmetric Tree965 Univalued Binary Tree958 Check Completeness of a Binary Tree951 Flip Equivalent Binary Trees(7) SubTree/Leaves222 Count Compl...