22 lines
500 B
Python
22 lines
500 B
Python
from collections import deque
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from node import Node, tree
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def find_largest(node):
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while node.right:
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node = node.right
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return node.value
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def find_second_largest(node):
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# parent of the rightmost, when rightmost is leaf
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# max(rightmost.left)
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prev = None
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while node.right:
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prev = node
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node = node.right
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if node.left:
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return find_largest(node.left)
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else:
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return prev.value
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assert find_second_largest(tree) == 72
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print("Success!")
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