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Merge pull request #201 from jojoo15/patch-13
添加 0501.二叉搜索树中的众数 python版本
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@ -394,8 +394,39 @@ class Solution {
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```
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```
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Python:
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Python:
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```python
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# Definition for a binary tree node.
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# class TreeNode:
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# def __init__(self, val=0, left=None, right=None):
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# self.val = val
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# self.left = left
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# self.right = right
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//递归法
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class Solution:
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def findMode(self, root: TreeNode) -> List[int]:
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if not root: return
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self.pre = root
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self.count = 0 //统计频率
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self.countMax = 0 //最大频率
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self.res = []
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def findNumber(root):
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if not root: return None // 第一个节点
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findNumber(root.left) //左
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if self.pre.val == root.val: //中: 与前一个节点数值相同
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self.count += 1
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else: // 与前一个节点数值不同
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self.pre = root
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self.count = 1
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if self.count > self.countMax: // 如果计数大于最大值频率
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self.countMax = self.count // 更新最大频率
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self.res = [root.val] //更新res
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elif self.count == self.countMax: // 如果和最大值相同,放进res中
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self.res.append(root.val)
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findNumber(root.right) //右
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return
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findNumber(root)
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return self.res
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```
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Go:
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Go:
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@ -405,4 +436,4 @@ Go:
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* 作者微信:[程序员Carl](https://mp.weixin.qq.com/s/b66DFkOp8OOxdZC_xLZxfw)
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* 作者微信:[程序员Carl](https://mp.weixin.qq.com/s/b66DFkOp8OOxdZC_xLZxfw)
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* B站视频:[代码随想录](https://space.bilibili.com/525438321)
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* B站视频:[代码随想录](https://space.bilibili.com/525438321)
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* 知识星球:[代码随想录](https://mp.weixin.qq.com/s/QVF6upVMSbgvZy8lHZS3CQ)
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* 知识星球:[代码随想录](https://mp.weixin.qq.com/s/QVF6upVMSbgvZy8lHZS3CQ)
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<div align="center"><img src=../pics/公众号.png width=450 alt=> </img></div>
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<div align="center"><img src=../pics/公众号.png width=450 alt=> </img></div>
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