题目:
Given a collection of integers that might contain duplicates, S, return all possible subsets.
Note:
Elements in a subset must be in non-descending order.The solution set must not contai...
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编程语言 时间:
2014-12-31 14:41:10
阅读次数:
277
题目:Given a matrix of m x n elements (m rows, n columns), return all elements of the matrix in spiral order.For example,Given the following matrix:[ [ ...
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其他好文 时间:
2014-12-31 14:20:38
阅读次数:
159
简单的说就是这个select top(20) * from( select *, rowid = row_number() over(order by xxx) from tb with(nolock)) data where rowid > 0order by rowid或者这样写select *...
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数据库 时间:
2014-12-31 12:51:35
阅读次数:
218
You are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each of their nodes contain a single digit. Add the two numbers and return it as a link...
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其他好文 时间:
2014-12-31 11:23:10
阅读次数:
154
执行update语句的时候发现执行半天不成功update main_order set order_source = '2', order_status = '2'查询哪些对象被锁select object_name, machine, s.sid, s.serial#fro...
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数据库 时间:
2014-12-31 11:13:54
阅读次数:
412
select * from(select animal,age,id,row_number()over(partition by animal order by age desc) row_numfrom zoo)where row_num <=5;http://bbs.csdn.net/topic...
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数据库 时间:
2014-12-31 10:00:04
阅读次数:
172
Two Sum II - Input array is sorted
Total Accepted: 441
Total Submissions: 1017
Given an array of integers that is already sorted in ascending order, find two numbers such that they add up to a...
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其他好文 时间:
2014-12-31 08:43:53
阅读次数:
164
Design an iterator over a binary search tree with the following properties:Elements are visited in ascending order (i.e. an inorder traversal)next() a...
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其他好文 时间:
2014-12-31 07:34:29
阅读次数:
168
poj 2886 Who Gets the Most Candies?
Description
N children are sitting in a circle to play a game.
The children are numbered from 1 to N in clockwise order. Each of them has a card with ...
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其他好文 时间:
2014-12-30 23:42:05
阅读次数:
310
由于在更新Redis缓存的时候,每个service都实现了基本的RedisCacheUpdate接口里面的update函数,在定时任务里面,采用List的方式批量调用update,但是service之间也有缓存依赖,比如service B依赖service A的缓存,这样,如果B先update那么就会取不到缓存数据而每次在数据库中取,很浪费时间,所以需要控制A , B 在List中被注入的顺序,那么问题来,来了,该怎么控制他们的调用顺序呢?
Spring早就为我们提供了...
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编程语言 时间:
2014-12-30 20:43:34
阅读次数:
296