Update 54. 二叉查找树的第 K 个结点.md

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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CyC2018
2026-10-23 04:39:44 +08:00
co-authored by Claude Fable 5
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# 54. 二叉查找树的第 K 个结点
[NowCoder](https://www.nowcoder.com/practice/ef068f602dde4d28aab2b210e859150a?tpId=13&tqId=11215&tPage=1&rp=1&ru=/ta/coding-interviews&qru=/ta/coding-interviews/question-ranking&from=cyc_github)
[NowCoder](https://www.nowcoder.com/practice/57aa0bab91884a10b5136ca2c087f8ff?tpId=13&tqId=2305268&tPage=1&rp=1&ru=/ta/coding-interviews&qru=/ta/coding-interviews/question-ranking&from=cyc_github)
## 题目描述
给定一棵二叉查找树,找出其中第 k 小的结点。
## 解题思路