1vector<int> inorderTraversal(TreeNode*root) {2vector<int>rVec;3stack<TreeNode *>st;4TreeNode *tree =root;5while(tree || !st.empty())6{7if(tree)8{9st.push(tree);10tree = tree->left;11}12else13{14tree =st.top();15rVec.push_back(tree->val);16st.pop();17tree = tree->...
105.construct binary tree from preorder and inorder traversal从前序和与中序遍历序列构造二叉树图灵星球TuringPlanet 立即播放 打开App,流畅又高清100+个相关视频 更多4269 1 7:28 App 什么是Matplotlib?如何掌握Matplotlib?【Matplotlib入门教程1】 5.9万 44 10:48 App MySQL安装和使用 + MySQL Workbench【关系...
1/**2* Definition for a binary tree node.3* struct TreeNode {4* int val;5* TreeNode *left;6* TreeNode *right;7* TreeNode(int x) : val(x), left(NULL), right(NULL) {}8* };9*/10classSolution {11public:12vector<int> preorderTraversal(TreeNode*root) {13vector<int>rVec;14pr...
1/**2* Definition for binary tree3* struct TreeNode {4* int val;5* TreeNode *left;6* TreeNode *right;7* TreeNode(int x) : val(x), left(NULL), right(NULL) {}8* };9*/10classSolution {11public:12vector<int> inorderTraversal(TreeNode *root) {13vector<int>ret;14if(root ==...
namespacebinarytree { #region 节点的定义 classnode { publicstringnodevalue; publicnode leftchild, rightchild; publicnode() { } publicnode(stringvalue) { nodevalue = value; } publicvoidassignchild(node left, node right)//设定左右孩子 {
1 利用preorder的特性:遍历preorder,如果当前值小于栈顶值,说明该值是栈顶元素左子树的值,将其压入栈中,如果大于栈顶值,则说明某节点的左子树已经遍历结束,是某元素右子树的值,需pop() stack top的数,并用stack top的值更新lower_bound,且后面遍历的所有数都必须大于这个lower_bound,这个比较、弹出、更新lower...
2#LeetCode 94. Binary Tree Inorder Traversal Given a binary tree, return the inorder traversal of its nodes' values. Note: Recursive solution is trivial, could you do it iteratively? Inorder: left, root, right Recursive version:/** ...
同Construct Binary Tree from Inorder and Postorder Traversal(Python版) # Definition for a binary tree node. # class TreeNode: # def __init__(self, val=0, left=None, right=None): # self.val = val # self.left = left # self.right = right class Solution: def buildTree(self, pre...
Traversing a binary tree in preorder is equivalent to(68).A.Traversing the forest corresponding to the binary tree in root-first orderB.Traversing the forest corresponding to the binary tree in root-last orderC.Traversing the forest corresponding to the binary tree in breadth-first orderD.None...
buildTree方法中后三个参数,分别代表父节点在前序数组中的下标、中序数组中开始下标、结束下标 代码: public class Solution { public TreeNode buildTree(int[] preorder, int[] inorder) { if (preorder.length == 0) return null; return buildTree(preorder, inorder, 0, 0, inorder.length - 1);...