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Update 0110.平衡二叉树.md

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jianghongcheng
2023-05-24 01:56:01 -05:00
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parent 450b3f2f15
commit 832897e4bb
1 changed files with 10 additions and 12 deletions
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14
problems/0110.平衡二叉树.md
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@ -536,16 +536,14 @@ class Solution:
```python
class Solution:
def isBalanced(self, root: TreeNode) -> bool:
return self.height(root) != -1
def height(self, node: TreeNode) -> int:
def isBalanced(self, root: Optional[TreeNode]) -> bool:
return self.get_hight(root) != -1
def get_hight(self, node):
if not node:
return 0
left = self.height(node.left)
if left == -1:
return -1
right = self.height(node.right)
if right == -1 or abs(left - right) > 1:
left = self.get_hight(node.left)
right = self.get_hight(node.right)
if left == -1 or right == -1 or abs(left - right) > 1:
return -1
return max(left, right) + 1
```