Given a binary tree, flatten it to a linked list in-place. For example, Given 1 / \ 2 5 / \ \ 3 4 6 The flattened tree should look like: 1 \ 2 \ 3 \ 4 \ 5 \ 6 Hints: If you notice carefully in the flattened tree, each node's right child points to the next node of ...
LeetCode—108. Convert Sorted Array to Binary Search Tree 题目 https://leetcode.com/problems/convert-sorted-array-to-binary-search-tree/description/ 将一个递增数组转化为平衡二叉搜索树。平衡二叉搜索树首先是一个二叉搜索树,其次要求每一个节点的左右... ...
packageleetcode/** * Definition for a binary tree node. * type TreeNode struct { * Val int * Left *TreeNode * Right *TreeNode * } */// 解法一 非递归funcflatten(root*TreeNode){list,cur:=[]int{},&TreeNode{}preorder(root,&list)cur=rootfori:=1;i<len(list);i++{cur.Left=nil...
https://oj.leetcode.com/problems/flatten-binary-tree-to-linked-list/ Given a binary tree, flatten it to a linked list in-place. For example, Given 1 / \ 2 5 / \ \ 3 4 6 The flattened tree should look like: 1 \ 2 \ 3 \ 4 \ 5 \ 6 click to show hints. Hints: If you ...
[leetcode] 114. Flatten Binary Tree to Linked List Description Given a binary tree, flatten it to a linked list in-place. For example, given the following tree: 1 / \ 2 5 / \ \ 3 4 6 1. 2. 3. 4. 5. The flattened tree should look like:...
Can you solve this real interview question? Flatten Binary Tree to Linked List - Given the root of a binary tree, flatten the tree into a "linked list": * The "linked list" should use the same TreeNode class where the right child pointer points to the
[LeetCode]Flatten Binary Tree to Linked List Question Given a binary tree, flatten it to a linked list in-place. For example, Given AI检测代码解析 1 / \ 2 5 / \ \ 3 4 6 1. 2. 3. 4. 5. The flattened tree should look like:...
TreeNode *left; TreeNode *right; TreeNode() {} TreeNode(int val) : val(val) {} TreeNode(int val, TreeNode *left, TreeNode *right) : val(val), left(left), right(right) {} }; class Solution { public: void flatten(TreeNode* root) { ...
LeetCode-114. Flatten Binary Tree to Linked List Given a binary tree, flatten it to a linked list in-place. For example, Given 1 / \ 2 5 / \ \ 3 4 6 The flattened tree should look like: 1 \ 2 \ 3 \ 4 \ 5 \ 6 Hints:...
114. Flatten Binary Tree to Linked List 仅供自己学习 思路: 题目要求最终的链表是按先序遍历的顺序排序,但如果用先序遍历,会导致右孩子丢失,所以后序的方法,自底向上来移动,那么下意识会想到对左子树DFS直到没有左子树。再将该节点的左子树放到该节点右子树位置,再将原右子树放到新右子树的右子树位置即可。