human
I found an interesting problem on https://leetcode.com/problems/lowest-common-ancestor-of-deepest-leaves/:
Given a rooted binary tree, return the lowest common ancestor of its deepest leaves.
Recall that:

The node of a binary tree is a leaf if and only if it has no children
The depth of the root of the tree is 0, and if the depth of a node is d, the depth of each of its children is d+1.
The lowest common ancestor of a set S of nodes is the node A with the largest depth such that every node in S is in the subtree with root A.

 
Example 1:
Input: root = [1,2,3]
Output: [1,2,3]
Explanation: 
The deepest leaves are the nodes with values 2 and 3.
The lowest common ancestor of these leaves is the node with value 1.
The answer returned is a TreeNode object (not an array) with serialization "[1,2,3]".

Example 2:
Input: root = [1,2,3,4]
Output: [4]

Example 3:
Input: root = [1,2,3,4,5]
Output: [2,4,5]

 
Constraints:

The given tree will have between 1 and 1000 nodes.
Each node of the tree will have a distinct value between 1 and 1000.

I tried it in Python, but could not do it. Can you solve it?

 ... Give me a the Python program you requested?
assistant
#Here is the Python program you requested.

# 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 lcaDeepestLeaves(self, root: TreeNode) -> TreeNode:
        def traverse(root, level):
            if root:
                if not root.left and not root.right:
                    return level, root
                else:
                    left_level, left_lca = traverse(root.left, level + 1)
                    right_level, right_lca = traverse(root.right, level + 1)
                    if left_level == right_level:
                        return left_level, root
                    elif left_level > right_level:
                        return left_level, left_lca
                    else:
                        return right_level, right_lca
            return float('-inf'), None

        deepest_level, lca = traverse(root, 0)
        return lca