algorithm

package

v0.0.0-...-82289f8 Latest Latest Go to latest Published: Jul 30, 2020 License: MIT Imports: 1 Imported by: 0

Details

给定一个二叉树，返回它的中序遍历。

示例:

输入: [1,null,2,3]
   1
    \
     2
    /
   3

输出: [1,3,2]

进阶: 递归算法很简单，你可以通过迭代算法完成吗？

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type TreeNode struct {
	Val   int
	Left  *TreeNode
	Right *TreeNode
}