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codeforces A题:Div. 64
A. Div. 64 Top-model Izabella participates in the competition. She wants to impress judges and show her mathematical skills. Her problem is following: ...
分类:其他好文   时间:2017-11-04 13:46:52    阅读次数:191
HDU 4114 Disney's FastPass
Disney's FastPass Problem Description Disney's FastPass is a virtual queuing system created by the Walt Disney Company. First introduced in 1999 (thug ...
分类:其他好文   时间:2017-11-02 14:25:55    阅读次数:151
redis代码解析-事务
redis 的事务相关的几个命令分别为 watch multi exec. watch 可以监控一个变量在事务开始执行之前是否有被修改.使用方式为: WATCH key [key ...] 在redis内部的实现是每个db有一个名为watched_keys的dict,这个dict的key为监控的ke ...
分类:其他好文   时间:2017-11-01 12:14:51    阅读次数:172
04-String课后动手动脑
一.String.equals()方法 public final class String implements java.io.Serializable, Comparable<String>, CharSequence { /** The value is used for character ...
分类:其他好文   时间:2017-10-27 13:36:34    阅读次数:167
三:动态SQL
:动态SQL 1.使用动态sql完成多条件查询 If:利用if实现简单的条件选择 Choose(when,otherwise):相当于java中的switch语句,通常与whenhe otherwise. Where:简化sql语句中的where语句的判断条件 Set:解决动态更新语句 Trim:可 ...
分类:数据库   时间:2017-10-23 20:04:48    阅读次数:179
566. Reshape the Matrix
566. Reshape the Matrix In MATLAB, there is a very useful function called 'reshape', which can reshape a matrix into a new one with different size but ...
分类:其他好文   时间:2017-10-19 20:00:26    阅读次数:174
poj2635The Embarrassed Cryptographer(同余膜定理)
The Embarrassed Cryptographer Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 15069 Accepted: 4132 Description The young and very promising ...
分类:其他好文   时间:2017-10-17 17:28:53    阅读次数:299
mybatis中的一些职能标签
1、动态SQL的元素: if choose (when, otherwise) trim (where, set) foreach bind if choose (when, otherwise) trim (where, set) foreach bind 2、if语句: <select id=" ...
分类:其他好文   时间:2017-10-16 22:12:08    阅读次数:172
mybatis动态sql
传统的使用JDBC的方法,相信大家在组合复杂的的SQL语句的时候,需要去拼接,稍不注意哪怕少了个空格,都会导致错误。Mybatis的动态SQL功能正是为了解决这种问题, 其通过 if, choose, when, otherwise, trim, where, set, foreach标签,可组合成 ...
分类:数据库   时间:2017-10-16 19:32:17    阅读次数:209
33. Search in Rotated Sorted Array
Suppose an array sorted in ascending order is rotated at some pivot unknown to you beforehand. (i.e., 0 1 2 4 5 6 7 might become 4 5 6 7 0 1 2). You a ...
分类:其他好文   时间:2017-10-16 09:45:38    阅读次数:195
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