Merge pull request #146 from QuinnDK/添加0236二叉树的最近公共祖先

添加0236二叉树的最近公共祖先 Go版本
This commit is contained in:
Carl Sun
2021-05-16 19:26:01 +08:00
committed by GitHub

View File

@ -266,7 +266,34 @@ Python
Go Go
```Go
func lowestCommonAncestor(root, p, q *TreeNode) *TreeNode {
// check
if root == nil {
return root
}
// 相等 直接返回root节点即可
if root == p || root == q {
return root
}
// Divide
left := lowestCommonAncestor(root.Left, p, q)
right := lowestCommonAncestor(root.Right, p, q)
// Conquer
// 左右两边都不为空,则根节点为祖先
if left != nil && right != nil {
return root
}
if left != nil {
return left
}
if right != nil {
return right
}
return nil
}
```
@ -274,4 +301,4 @@ Go
* 作者微信:[程序员Carl](https://mp.weixin.qq.com/s/b66DFkOp8OOxdZC_xLZxfw) * 作者微信:[程序员Carl](https://mp.weixin.qq.com/s/b66DFkOp8OOxdZC_xLZxfw)
* B站视频[代码随想录](https://space.bilibili.com/525438321) * B站视频[代码随想录](https://space.bilibili.com/525438321)
* 知识星球:[代码随想录](https://mp.weixin.qq.com/s/QVF6upVMSbgvZy8lHZS3CQ) * 知识星球:[代码随想录](https://mp.weixin.qq.com/s/QVF6upVMSbgvZy8lHZS3CQ)
<div align="center"><img src=../pics/公众号.png width=450 alt=> </img></div> <div align="center"><img src=../pics/公众号.png width=450 alt=> </img></div>