Description
Difficulty: 简单
Related Topics: Stack, Tree, Depth-First Search, Binary Tree
Given the root of a binary tree, return the inorder traversal of its nodes’ values.
Example 1:
Input: root = [1,null,2,3]
Output: [1,3,2]Example 2:
Input: root = []
Output: []Example 3:
Input: root = [1]
Output: [1]Constraints:
- The number of nodes in the tree is in the range
[0, 100]. -100 <= Node.val <= 100
Follow up: Recursive solution is trivial, could you do it iteratively?
Solution
Language: Go
