There are a total ofncourses you have to take, labeled from0ton - 1.Some courses may have prerequisites, for example to take course 0 you have to firs...
分类：
其他好文 时间：
2015-08-09 22:07:38
阅读次数：
187
There are a total ofncourses you have to take, labeled from0ton - 1.Some courses may have prerequisites, for example to take course 0 you have to firs...
分类：
其他好文 时间：
2015-08-09 15:27:51
阅读次数：
186
Few people know that when you take photos there is also a thumbnail embeded inside the file, even some forensic guys may have no idea about this impor...
分类：
其他好文 时间：
2015-08-09 10:46:31
阅读次数：
195
Oracle设置和删除不可用列1、不可用列是什么？就是表中的1个或多个列被ALTER TABLE…SET UNUSED 语句设置为无法再被程序利用的列。2、使用场景？
If you are concerned about the length of time it could take to drop column data from
all of the rows in a large tab...
分类：
数据库 时间：
2015-08-08 20:00:12
阅读次数：
232
There are a total of n courses you have to take, labeled from 0 to n
- 1.
Some courses may have prerequisites, for example to take course 0 you have to first take course 1, which is expressed as ...
分类：
其他好文 时间：
2015-08-08 19:54:17
阅读次数：
106
Nim or not Nim?
Description
Nim is a two-player mathematic game of strategy in which players take turns removing objects from distinct heaps. On each turn, a player must remove at least one object, and may remove any number of objects provided they all com...
分类：
其他好文 时间：
2015-08-08 13:39:38
阅读次数：
137
CodeForces 567B Berland National Library(模拟)(简单)Berland National Library has recently been built in the capital of Berland. In addition, in the library you can take any of the collected works of Berland leaders, the library has a reading room....
分类：
其他好文 时间：
2015-08-07 14:48:09
阅读次数：
143
There are n coins with different value in a line. Two players take turns to take one or two coins from left side until there are no more coins left. T...
分类：
其他好文 时间：
2015-08-07 08:16:12
阅读次数：
177
Berland National Library has recently been built in the capital of Berland. In addition, in the library you can take any of the collected works of Ber...
分类：
其他好文 时间：
2015-08-06 22:15:03
阅读次数：
135
方法一：mysql误删root第一步：mysqld_safe--skip-grant-tables--skip-networking&（跳过密码启动）第二步：增加root表insertintousersetuser=‘root‘,ssl_cipher=‘‘,x509_issuer=‘‘,x509_subject=‘‘;第三步：root赋予权限updateusersetHost=‘localhost‘,select_priv=‘y‘,in..
分类：
数据库 时间：
2015-08-06 18:47:44
阅读次数：
151
