[LeetCode] 589. N-ary Tree Preorder Traversal_Easy [LeetCode] 590. N-ary Tree Postorder Traversal_Easy [LeetCode] 105. Construct Binary Tree from Preorder and Inorder Traversal_Medium tag: Tree Traversal [LeetCode] 106. Construct Binary Tree from Postorder and Inorder Traversal_Medium tag:...
详细分析可参考LeetCode上的一篇博文。具体程序如下: 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...
105. Construct Binary Tree from Preorder and Inorder Traversal——tree,程序员大本营,技术文章内容聚合第一站。
preorder: root-left-right inorder: left-root-right postorder: left-right-root order指的是root的位置。 recursive算法比较简单,iterative算法比较难想,可是leetcode原题都说了: recursive method is trivial, could you do iteration? 144.Binary Tree Preorder Traversal /*iterative*/ public List<Integer> p...
Given preorder and inorder traversal of a tree, construct the binary tree. 本题就是根据前序遍历和中序遍历的结果还原一个二叉树。 题意很简答,就是递归实现,直接参考代码吧。 查询index部分可以使用Map做查询,建议和下一道题 leetcode 106. Construct Binary Tree from Inorder and Postorder Traversal 中...
Given two integer arrays, preorder and postorder where preorder is the preorder traversal of a binary tree of distinct values and postorder is the postorder traversal of the same tree, reconstruct and return the binary tree. If there exist multiple answers, you can return any of them. Example...
LeetCode: 105. Construct Binary Tree from Preorder and Inorder Traversal 题目描述 Given preorder and inorder traversal of a tree, construct the binary tree. Note: You may assume that duplicates do not exist in the tree. For example, given ...
889. Construct Binary Tree from Preorder and Postorder Traversal,程序员大本营,技术文章内容聚合第一站。
Binary Tree Preorder Traversal -- LeetCode 原题链接: http://oj.leetcode.com/problems/binary-tree-preorder-traversal/ 跟Binary Tree Inorder Tr...144 Binary Tree Preorder Traversal 1 题目 2 尝试解 3 标准解 ...Binary Tree Preorder/Postorder Traversal 树的前序和后序遍历是树相关算法的...
* 题目: 105.Construct Binary Tree from Preorder and Inorder Traversal * 网址:https://leetcode.com/problems/construct-binary-tree-from-preorder-and-inorder-traversal/ * 结果:AC * 来源:LeetCode * 博客: ---*/#include<iostream>#include<vector>#include<algorithm>usingnamespacestd;structTree...