mirror of
https://gitee.com/coder-xiaomo/leetcode-problemset
synced 2025-09-26 09:15:15 +08:00
30 lines
577 B
HTML
30 lines
577 B
HTML
<p>设计一个算法，找出二叉搜索树中指定节点的“下一个”节点（也即中序后继）。</p>
|
||
|
||
<p>如果指定节点没有对应的“下一个”节点，则返回<code>null</code>。</p>
|
||
|
||
<p><strong>示例 1：</strong></p>
|
||
|
||
<pre>
|
||
<strong>输入：</strong>root = <code>[2,1,3], p = 1
|
||
|
||
2
|
||
/ \
|
||
1 3
|
||
</code>
|
||
<strong>输出：</strong>2</pre>
|
||
|
||
<p><strong>示例 2：</strong></p>
|
||
|
||
<pre>
|
||
<strong>输入：</strong>root = <code>[5,3,6,2,4,null,null,1], p = 6
|
||
|
||
5
|
||
/ \
|
||
3 6
|
||
/ \
|
||
2 4
|
||
/
|
||
1
|
||
</code>
|
||
<strong>输出：</strong>null</pre>
|