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24 lines
286 B
Python
24 lines
286 B
Python
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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# author: bt3gl
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def successor(root):
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root = root.right
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while root.left:
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root = root.left
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return root
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def predecessor(root):
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root = root.left
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while root.right:
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root = root.right
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return root
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