Communicating
with Hardware
Using I/O Ports
I/O ports are the means by which drivers communicate with many devices, at least
part of the time. This section covers the various functions...
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其他好文 时间：
2014-08-26 15:36:16
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1) #cd /usr/share/zoneinfo you will see many countries and timezone, you can go to the directory you see your timezone eg:# cd /usr/share/zoneinfo/Ame...
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2014-08-26 00:21:25
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#includevoid main(){int i=0,j=0,many=100000,many1=100000,num,num1,num2,num4=0,s=0,s1=0;int a=123; int b; printf(" "); for(i;ia) { ...
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编程语言 时间：
2014-08-25 21:05:24
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254
Follow up for "Unique Paths":Now consider if some obstacles are added to the grids. How many unique paths would there be?An obstacle and empty space i...
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2014-08-25 20:55:04
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Hibernate的多对多实现：hibernate.cfg.xml com.mysql.jdbc.Driver jdbc:mysql://127.0.0.1/testdb root 1 ...
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系统相关 时间：
2014-08-25 16:24:44
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289
多精度计算里,多精度乘法是其中最重要的运算之一,编写的多精度库(类)的其中一个重要效率标识就是其乘法的速度.根据曾经写的大数类的记忆,简单记录下其中的一些技巧,以备查询.一般的算法有如:多精度乘法,所知的几个主要的优化方法有:1:直接乘法.2:comba乘法3:Karatsuba乘法4:too..
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2014-08-25 15:12:55
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There is a wise saying “Nothingis unfair in love and war”. Probably that is why emperors of ancient days usedto use many funny and clever
tricks to fool the opponents. The most commontechnique was t...
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其他好文 时间：
2014-08-25 11:57:44
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You are climbing a stair case. It takes n steps to reach to the top.Each time you can either climb 1 or 2 steps. In how many distinct ways can you cli...
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2014-08-24 22:00:03
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Description
Combinatorics is a branch of mathematics chiefly concerned with counting discrete objects. For instance, how many ways can you pick two people out of a crowd of
n people? Into how many...
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其他好文 时间：
2014-08-23 20:24:01
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Consider this sequence {1, 2, 3, … , N}, as a initial sequence of firstN natural numbers. You can rearrange this sequence in many ways. Therewill be
N! different arrangements. You have to calculate t...
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其他好文 时间：
2014-08-23 15:27:01
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