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Create bt_postorder.py

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bt3gl 2023-08-08 13:37:21 -07:00 • committed by GitHub
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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# author: bt3gl
def postorder(root) -> list:
if root is None:
return []
return postorder(root.left) + postorder(root.right) + [root.val]