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""" Asked by: Google [Easy].

Given the root of a binary tree, return a deepest node. For example, in the following tree, return d.

"""

""" Asked by: Google [Easy].

Given the root of a binary tree, return a deepest node. For example, in the following tree, return d.

"""
Asked by: Google [Easy].  Given the root of a binary tree, return a deepest node. For example, in the following tree, return d.