python - max depth of a binary tree


  • 0
    S
    # Definition for a binary tree node.
    # class TreeNode(object):
    #     def __init__(self, x):
    #         self.val = x
    #         self.left = None
    #         self.right = None
    
    class Solution(object):
                
        def maxDepth(self, root):
            """
            :type root: TreeNode
            :rtype: int
            """
            return 1 + max(self.maxDepth(root.left), self.maxDepth(root.right)) if root else 0            
            
                
    

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