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Create bst_is_balanced.py

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marina 2023-08-03 15:55:38 -07:00 committed by GitHub
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commit 817cbb57a2
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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# author: bt3gl
def height(root):
if not root:
return -1
return 1 + max(height(root.left), height(root.right))
def is_balanced(root):
if not root:
return True
return abs(height(root.left) - height(root.right)) < 2 and \
is_balanced(root.left) and is_balanced(root.right)