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Single Number -- leetcode
Given an array of integers, every element appears twice except for one. Find that single one. Note: Your algorithm should have a linear runtime complexity. Could you implement it without using ext...
分类:其他好文   时间:2015-05-29 18:16:19    阅读次数:142
leetcode_single number
题目描述 Given an array of integers, every element appears twice except for one. Find that single one. Note: Your algorithm should have a linear runtime complexity. Could you implement it without...
分类:其他好文   时间:2015-05-28 23:16:30    阅读次数:173
Python try/except/finally等
Python try/except/finally等[代码块]x='abc'deffetcher(obj,index):returnobj[index]fetcher(x,4)输出:File"test.py",line6,infetcher(x,4)File"test.py",line4,infet...
分类:编程语言   时间:2015-05-28 12:19:30    阅读次数:137
python之错误和异常
try...except...finallytry 语句块中异常发生点后的剩余语句永远不会到达(所以也永远不会执行). 一旦一个异常被引发, 就必须决定控制流下一步到达的位置. 剩余代码将被忽略, 解释器将搜索处理器, 一旦找到,就开始执行处理器中的代码.如果没有找到合适的处理器, 那么异常就向上移...
分类:编程语言   时间:2015-05-27 13:41:47    阅读次数:249
SQL中对于两个不同的表中的属性取差集except运算
SQL中对两个集合取差集运算,使用except关键字,语法格式如下:SELECT column_name(s) FROM table_name1EXCEPTSELECT column_name(s) FROM table_name2输出为在前一个集合中存在,而不存在于第二个集合的元组。如果,选取两个...
分类:数据库   时间:2015-05-20 22:03:53    阅读次数:229
相同表结构不同记录
SELECT * FROM ( SELECT 'ISA.FLIGHTTIME' AS 表名, * FROM ISA.DBO.AIRLINES_FLIGHTTIME EXCEPT SELECT 'B表' AS 表名, * FROM ISA510.DBO.AIRLINES_FLI...
分类:其他好文   时间:2015-05-19 22:19:53    阅读次数:138
LeetCode[136]Single Number
/* LeetCode[136]:Single Number* Given an array of integers, every element appears twice except for one. Find that single one.** Note:* Your algorithm ...
分类:其他好文   时间:2015-05-17 18:26:20    阅读次数:95
Single Number II
Given an array of integers, every element appearsthreetimes except for one. Find that single one.Note:Your algorithm should have a linear runtime comp...
分类:其他好文   时间:2015-05-16 23:08:32    阅读次数:161
启动dubbo
Exception in thread "main" org.springframework.beans.factory.xml.XmlBeanDefinitionStoreException: Line 22 in XML document from class path resource [applicationContext.xml] is invalid; nested except...
分类:其他好文   时间:2015-05-14 18:55:34    阅读次数:181
Head_First_Python学习笔记(三)
使用pickle保存,读取文件#dump.py import pickle try: with open('data.pickle','wb') as data: pickle.dump([1,2,'three'],data)except IOError as err: print('file error:' + str(err)) excep...
分类:编程语言   时间:2015-05-14 12:07:36    阅读次数:189
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