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import functools class Solution(object): @functools.lru_cache() def mergeTrees(self, t1, t2): if t1 and t2: root = TreeNode(t1.val + t2.val) root.left = self.m... 阅读全文
posted @ 2019-03-23 18:27
周洋
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按位计算就行. 阅读全文
posted @ 2019-03-23 06:11
周洋
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bin(7)Out[12]: '0b111'oct(73)Out[13]: '0o111'hex(273)Out[14]: '0x111' 阅读全文
posted @ 2019-03-23 04:16
周洋
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class Solution(object): def hammingDistance(self, x, y): """ :type x: int :type y: int :rtype: int """ return str(bin(x^y)).count('1') 阅读全文
posted @ 2019-03-23 04:07
周洋
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import functools # Definition for a binary tree node. # class TreeNode(object): # def __init__(self, x): # self.val = x # self.left = None # self.right = None @functools.l... 阅读全文
posted @ 2019-03-23 02:46
周洋
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