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poj 1258 最小生成树
链接: http://poj.org/problem?id=1258Agri-NetTime Limit:1000MSMemory Limit:10000KTotal Submissions:38326Accepted:15424DescriptionFarmer John has been ele...
分类:其他好文   时间:2014-07-09 00:11:17    阅读次数:251
批量MD5命名文件
#coding=utf-8import osimport hashlibdef GetFileMd5(filename): if not os.path.isfile(filename): print(filename) return mymd5 = has...
分类:其他好文   时间:2014-07-08 23:52:38    阅读次数:502
Override ListView getAdapter造成的后果
最近工作中,发现了一个bug,是和ListView Adapter有关的。产生了FC,描述信息大约是 "The content of the adapter has changed but ListView did not receive a notification. Make sure the content of your adapter is not modified from a b...
分类:其他好文   时间:2014-07-08 20:09:41    阅读次数:199
[Ruby] Define abstract methods
Ruby has its own style to define the abstract methods in its class....
分类:其他好文   时间:2014-07-08 19:45:49    阅读次数:145
【LeetCode】Linked List Cycle
题目 Given a linked list, determine if it has a cycle in it. Follow up: Can you solve it without using extra space? 解答 首先要注意空链表不成环;不能开额外的空间,即空间复杂度是o(1),可采用“快慢指针”查检查链表是否含有环,如果在快的指针能够追上慢的指针,则有环,否...
分类:其他好文   时间:2014-07-08 19:17:47    阅读次数:160
POJ 1573:Robot Motion
Robot Motion Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 10267   Accepted: 5001 Description A robot has been programmed to follow the instructions ...
分类:其他好文   时间:2014-07-08 19:13:43    阅读次数:203
[Ruby]How to create singleton class ?
Singleton is one design pattern in the software engineering. Ruby has its own special feature to declare singleton class...
分类:其他好文   时间:2014-07-08 18:05:25    阅读次数:213
读TIJ -6 类再生
《Think in java·第 6 章类再生》 读TIJ -1 对象入门 中已经就代码复用性吐槽了。继承关系在结果上(不是为了代码复用而设计继承关系)为代码复用提供了新的途径。 本章看其目录就比较杂,程序员的内聚思想去哪儿了?合成复用优先——合成、继承,为什么实现继承是不好的…… 6.1 合成的语法 解释了一个例程,没有什么好说的。has_a关系。 6.2 继承的语法 【You ca...
分类:其他好文   时间:2014-07-08 18:01:33    阅读次数:198
LA3026 - Period(KMP)
For each prefix of a given string S with N characters (each character has an ASCII code between 97 and 126, inclusive), we want to know whether the prefix is a periodic string. That is, for each i (2...
分类:其他好文   时间:2014-07-08 17:54:12    阅读次数:297
java jdbc操作mysql
importjava.sql.Connection;importjava.sql.DriverManager;importjava.sql.PreparedStatement;importjava.sql.ResultSet;publicclasstest{publicstaticfinalStringDBDRIVER="com.mysql.jdbc.Driver";//定义MySQL数据库的连接地址publicstaticfinalStringDBURL="jdbc:mysql://lo..
分类:数据库   时间:2014-07-08 10:04:24    阅读次数:357
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