diff --git a/problems/0530.二叉搜索树的最小绝对差.md b/problems/0530.二叉搜索树的最小绝对差.md index 903ebf78..347d66d1 100644 --- a/problems/0530.二叉搜索树的最小绝对差.md +++ b/problems/0530.二叉搜索树的最小绝对差.md @@ -177,8 +177,29 @@ class Solution { ``` Python: - - +```python +# Definition for a binary tree node. +# class TreeNode: +# def __init__(self, val=0, left=None, right=None): +# self.val = val +# self.left = left +# self.right = right +class Solution: + def getMinimumDifference(self, root: TreeNode) -> int: + res = [] + r = float("inf") + def buildaList(root): //把二叉搜索树转换成有序数组 + if not root: return None + if root.left: buildaList(root.left) //左 + res.append(root.val) //中 + if root.right: buildaList(root.right) //右 + return res + + buildaList(root) + for i in range(len(res)-1): // 统计有序数组的最小差值 + r = min(abs(res[i]-res[i+1]),r) + return r +``` Go: @@ -188,4 +209,4 @@ Go: * 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) * 知识星球:[代码随想录](https://mp.weixin.qq.com/s/QVF6upVMSbgvZy8lHZS3CQ) -
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