Leetcode 114:Flatten Binary Tree to Linked List
Given a binary tree, flatten it to a linked list in-place.
For example, given the following tree:The flattened tree should look like:这道题要求把二叉树展开成链表,根据展开后形成的链表的顺序分析出是使用先序遍历。想到树的遍历立马会联想到递归的方法。…
2026/7/28 17:07:16