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ZigBee
ZigBee is a specification for a suite of high level communication protocols used to create personal area networks built from small, low-power digital ...
分类:其他好文   时间:2014-07-19 20:37:21    阅读次数:212
Power Strings
poj2406:http://poj.org/problem?id=2406题意:给你一个串,让你找出这个串是由哪个串循环得到,出处循环的次数。题解;知道了KMP,用next数组直接搞定。判断ans=len%(len-next[len])==0?len/(len-next[len]):1; 1 #i...
分类:其他好文   时间:2014-07-19 12:21:07    阅读次数:391
POJ2406 Power Strings 【KMP】
Power Strings Time Limit: 3000MS   Memory Limit: 65536K Total Submissions: 31388   Accepted: 13074 Description Given two strings a and b we define a*b to be their conca...
分类:其他好文   时间:2014-07-18 18:15:31    阅读次数:252
UVALive 6472 Powers of Pascal
题目的意思是: 给了一个无穷大Pascal矩阵,定义了powers,然后询问power为P的pascal矩阵里面的第R行C列的元素是多少。 最开始读错题意了...然后 就成了一个神得不得了的题了。后来请教的别人。 感觉可以用矩阵快速幂做。 然后,不用快速幂的话,你会惊奇的发现,变成了找规律的题了... 答案成了 comb(i,j) * P^(i-j) 对于comb(i,j),利...
分类:其他好文   时间:2014-07-18 12:37:08    阅读次数:191
MongoDB GridFS规范
This is being changed for 2.4.10 and 2.6.0-rc3.Tyler Brock's explanation:Now that the server uses power of 2 by default, if the default chunk size for...
分类:数据库   时间:2014-07-18 12:20:42    阅读次数:430
Methods for Using Message Queuing Telemetry Transport for Sensor Networks to Support Sleeping Devices
Methods support a sleep mode for an embedded device. Embedded devices like sensors and actuators used in wireless sensor networks have a limited power...
分类:Web程序   时间:2014-07-18 08:33:13    阅读次数:479
字符与字符串
字符:Swift中的字符串不是指针,而是实际的值用Character定义一个字符countElements(字符串)//计算字符个数循环//如果不需要知道区间内每一项的值,可以使用 _ 来代替变量名忽略对该值的访问for _ in 1...power{ answer*=base}let numbe....
分类:其他好文   时间:2014-07-18 08:26:55    阅读次数:188
C语言之语法
1. #if defined #endif #if defined ( POWER_SAVING ) osal_pwrmgr_device( PWRMGR_BATTERY ); #endif #if (**) {语句##;} #endif 如果(**...
分类:编程语言   时间:2014-07-18 00:35:41    阅读次数:260
poj 1459 -- Power Network
Power NetworkTime Limit: 2000MSMemory Limit: 32768KTotal Submissions: 22517Accepted: 11800DescriptionA power network consists of nodes (power stations...
分类:Web程序   时间:2014-07-17 18:08:34    阅读次数:415
POJ 2109 Power of Cryptography
Description Current work in cryptography involves (among other things) large prime numbers and computing powers of numbers among these primes. Work in this area has resulted in the practical use of...
分类:其他好文   时间:2014-07-17 10:12:16    阅读次数:191
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