摘要：
# Definition for a binary tree node. # class TreeNode(object): # def __init__(self, x): # self.val = x # self.left = None # self.right = None class Solution(object): ... 阅读全文
posted @ 2019-04-02 18:14
周洋
阅读(164)
评论(0)
推荐(0)
摘要：
class Solution(object): def largestSumAfterKNegations(self, A, K): """ :type A: List[int] :type K: int :rtype: int """ have_zero = False ne... 阅读全文
posted @ 2019-03-30 07:49
周洋
阅读(174)
评论(0)
推荐(0)
摘要：
class Solution(object): def clumsy(self, N): """ :type N: int :rtype: int """ op = {0: '*', 1: '//', 2: '+', 3: '-'} strN = list(map(str, range(N -... 阅读全文
posted @ 2019-03-30 07:00
周洋
阅读(180)
评论(0)
推荐(0)
摘要：
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
阅读(117)
评论(0)
推荐(0)
摘要：
按位计算就行. 阅读全文
posted @ 2019-03-23 06:11
周洋
阅读(137)
评论(0)
推荐(0)
摘要：
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
阅读(456)
评论(0)
推荐(0)
摘要：
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
阅读(139)
评论(0)
推荐(0)
摘要：
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
阅读(252)
评论(0)
推荐(0)
摘要：
class Solution(object): def strStr(self, haystack, needle): """ :type haystack: str :type needle: str :rtype: int """ return haystack.find(needle) ... 阅读全文
posted @ 2019-03-22 06:20
周洋
阅读(159)
评论(0)
推荐(0)
摘要：
class Solution(object): def repeatedSubstringPattern(self, s): return True if re.match(r'(\w+)\1+$', s) else False 阅读全文
posted @ 2019-03-22 01:29
周洋
阅读(174)
评论(0)
推荐(0)
浙公网安备 33010602011771号