leetcode 894. 所有可能的满二叉树(All Possible Full Binary Trees) 题目 满二叉树是一类二叉树,其中每个结点恰好有 0 或 2 个子结点。 返回包含 N 个结点的所有可能满二叉树的列表。 答案的每个元素都是一个可能树的根结点。 答案中每个树的每个结点都必须有 node.val=0。 你可以按任何顺序返回树的最终列表
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...
leetcode_894. All Possible Full Binary Trees https://leetcode.com/problems/all-possible-full-binary-trees/ 给定节点个数,求所有可能二叉树,该二叉树所有节点要么有0个子节点要么有两个子节点。返回所有二叉树的头指针。 一开始一直想的是从根节点开始建树,一直想不出来方法。后来想到可以从子节点开始建树,问...
满二叉树i++文章分类后端开发 Afull binary treeis 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...
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 - Groups of Special-Equivalent Strings C++ Java Python3 Easy 892 三维形体的表面积 - Surface Area of 3D Shapes C++ Java Python3 Easy 891 子序列宽度之和 - Sum of Subsequence Widths C++ Jav...
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...
LeetCode 398. Random Pick Index LC address:398. Random Pick Index Given an array of integers with possible duplicates, randomly output the index of a given target number. You can assume that the given target number must exist in the array. ...
原题链接在这里:https://leetcode.com/problems/all-possible-full-binary-trees/ 题目: Afull binary treeis a binary tree where each node has exactly 0 or 2 children. Return a list of all possible full binary trees withNnodes. Each element of the answer is the root node of one possible tr...
894. All Possible Full Binary Trees 列出所有可能的完全二叉树 /** * Definition for a binary tree node. * struct TreeNode { * int val; * TreeNode *left; * TreeNode *right; * TreeNode(int x) : val(x), left(NULL), right(NULL) {}...
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...