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修复 0235.二叉搜索树的最近公共祖先.md Python3解法

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Original file line number	Diff line number	Diff line change
`@@ -260,13 +260,15 @@ class Solution {`
`260`	`260`	`递归法:`
`261`	`261`	```python
`262`	`262`	`class Solution:`
	`263`	`+ """二叉搜索树的最近公共祖先递归法"""`
	`264`	`+`
`263`	`265`	`def lowestCommonAncestor(self, root: 'TreeNode', p: 'TreeNode', q: 'TreeNode') -> 'TreeNode':`
`264`		`- if notroot: returnroot//中`
`265`		`- if root.val >p.val androot.val > q.val:`
`266`		`- returnself.lowestCommonAncestor(root.left,p,q) //左`
`267`		`- elif root.val < p.val androot.val < q.val:`
`268`		`- return self.lowestCommonAncestor(root.right,p,q) //右`
`269`		`- else: return root`
	`266`	`+ if root.val > p.val androot.val > q.val:`
	`267`	`+ returnself.lowestCommonAncestor(root.left, p, q)`
	`268`	`+ if root.val < p.val androot.val < q.val:`
	`269`	`+ returnself.lowestCommonAncestor(root.right, p, q)`
	`270`	`+ return root`
	`271`	`+`
`270`	`272`	```
`271`	`273`
`272`	`274`	`迭代法:`

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