classSolution{public:vector<TreeNode*>allPossibleFBT(intN){if(N %2==0)return{};if(N ==1)return{newTreeNode(0)}; vector<TreeNode*> res;for(inti =1; i < N; i +=2) { vector<TreeNode*> left =allPossibleFBT(i), right =allPossibleFBT(N - i -1);for(autoa : left) {for(a...
private: map<int, vector<TreeNode*>> mapObj; public: vector<TreeNode*> allPossibleFBT(intN) { autoa = mapObj.find(N);<br><strong>//左右两侧可能运算相同的数值,所以记录下来避免重复</strong><br><strong> //可能造成多种情况下的节点指针指向相同的地址,但问题不大<br> //</strong> if(a...
A full binary tree is a binary tree where each node has exactly 0 or 2 children. Return a list of all possible full binary trees with N nodes. Each element of the answer is the root node of one possible tre...
A full binary tree is a binary tree where each node has exactly 0 or 2 children. Return a list of all possible full binary trees with N nodes. Each element of the answer is the root node of one possible tree. Each node of each tree in the answer must have node.val = 0. You may...
894 All Possible Full Binary Trees 71.30% Medium 893 Groups of Special-Equivalent Strings 63.00% Easy 892 Surface Area of 3D Shapes 56.10% Easy 891 Sum of Subsequence Widths 29.20% Hard 890 Find and Replace Pattern 71.30% Medium 889 Construct Binary Tree from Preorder and Postorder Traversal 60...
897 递增顺序查找树 - Increasing Order Search Tree C++ Java Python3 Easy 896 单调数列 - Monotonic Array C++ Java Python3 Easy 895 最大频率栈 - Maximum Frequency Stack C++ Java Python3 Hard 894 所有可能的满二叉树 - All Possible Full Binary Trees C++ Java Python3 Medium 893 特殊等价字符串组...
Can you solve this real interview question? All Nodes Distance K in Binary Tree - Given the root of a binary tree, the value of a target node target, and an integer k, return an array of the values of all nodes that have a distance k from the target node
Solution code can also be found here: https://github.com/all4win/LeetCode.git Posted in LeetCode, LeetCode Hard on 2016年9月28日. 1 Comment LeetCode 333. Largest BST Subtree LC address: Largest BST Subtree Given a binary tree, find the largest subtree which is a Binary Search Tree ...
@(LeetCode) 问题描述 给定一颗二叉树的根节点root,目标节点target,和一个整数K。 返回与目标节点距离为K的节点列表,顺序随意。 栗1: image.png 输入:root=[3,5,1,6,2,0,8,null,null,7,4],target=5,K=2输出:[7,4,1]解释: 树的结构如上图所示。与节点5的距离为2的节点有:7、4、1。
aspossible. 完整的二叉树:它是一棵二叉树,其中除最后一个级别外,每个级别都已完全填充,并且所有节点都尽可能地靠左。 floor(n/2).floor(n / 2) 。 Balanced... same level.完美的二叉树:这是一棵二叉树,其中所有内部节点都有两个子节点,所有叶子的深度或级别相同。 l leaves has l个叶子的理想二叉树具...