Although there has been a lot of AVL tree libraries available now, nearly all of them are meant to work in the random access memory(RAM). Some of them do provide some mechanism for dumping the whole tree into a file and loading it back to the memory in order to make data in that tree persistent. It serves well when there s just small amount of data. When the tree is somewhat bigger, the dumping/loading process could take a lengthy time and makes your mission-critical program less efficient. How about an AVL tree that can directly use the disk for data storage ? If there s something like that, we won t need to read through the whole tree in order to pick up just a little bit imformation(a node), but read only the sectors that are neccssary for locating a certain node and the sectors in which that node lies. This is my initial motivation for writing a storage-media independent AVL Tree. However, as you step forth, you would find that it not only works fine with disks but also fine with memorys, too.
标签： available libraries Although nearly
上传时间： 2014-01-22
上传用户：zhoujunzhen
数字运算，判断一个数是否接近素数 A Niven number is a number such that the sum of its digits divides itself. For example, 111 is a Niven number because the sum of its digits is 3, which divides 111. We can also specify a number in another base b, and a number in base b is a Niven number if the sum of its digits divides its value. Given b (2 <= b <= 10) and a number in base b, determine whether it is a Niven number or not. Input Each line of input contains the base b, followed by a string of digits representing a positive integer in that base. There are no leading zeroes. The input is terminated by a line consisting of 0 alone. Output For each case, print "yes" on a line if the given number is a Niven number, and "no" otherwise. Sample Input 10 111 2 110 10 123 6 1000 8 2314 0 Sample Output yes yes no yes no
上传时间： 2015-05-21
上传用户：daguda
ITU-T Recommendation V.90 98年9月版本 A DIGITAL MODEM AND ANALOGUE MODEM PAIR FOR USE ON THE PUBLIC SWITCHED TELEPHONE NETWORK (PSTN) AT DATA SIGNALLING RATES OF UP TO 56 000 bit/s DOWNSTREAM AND UP TO 33 600 bit/s UPSTREAM
标签： MODEM Recommendation ANALOGUE DIGITAL
上传时间： 2014-01-17
上传用户：hn891122
MFC Black Book Introduction: Are you an MFC programmer? Good. There are two types of MFC programmers. What kind are you? The first kind are the good programmers who write programs that conform to the way MFC wants you to do things. The second bunch are wild-eyed anarchists who insist on getting things done their way. Me, I’m in the second group. If you are in the same boat (or would like to be) this book is for you. This book won’t teach you MFC—not in the traditional sense. You should pick it up with a good understanding of basic MFC programming and a desire to do things differently. This isn’t a Scribble tutorial (although I will review some fundamentals in the first chapter). You will learn how to wring every drop from your MFC programs. You’ll discover how to use, abuse, and abandon the document/view architecture. If you’ve ever wanted custom archives, you’ll find that, too.
标签： MFC Introduction programmer programme
上传时间： 2015-05-30
上传用户：youke111
某幼儿园按如下方法依次给A，B，C，D，E五个小孩发糖果。将全部糖果的一半再加二分之一块糖果发给第一个小孩；将剩下糖果的三分之一再加三分之一块糖果发给第二个小孩；将剩下糖果的四分之一再加四分之一块糖果发给第三个小孩；将剩下糖果的五分之一再加五分之一块糖果发给第四个小孩；将最后剩下的11块糖果发给第五个小孩。每个小孩得到的糖果数均为整数。试确定原来共有多少块糖果？每个小孩各得到多少块糖果？ 要求结果的输出格式为 sum＝糖果总数 xa＝A得到的糖果数 xb＝B得到的糖果数 xc＝C得到的糖果数 xd＝D得到的糖果数 xe＝E得到的糖果数
标签：
上传时间： 2015-06-02
上传用户：叶山豪
针对44B0的bootload，在UP－NETARM3000上调试成功，希望对大家有帮助！
上传时间： 2013-12-19
上传用户：hewenzhi
This program uses the database created by MakeAPIDB. It opens a connection * to a database using the same property file used by MakeAPIDB. Then it * queries that database in several interesting ways to obtain useful * information about Java APIs. It can be used to look up the fully-qualified * name of a member, class, or package, or it can be used to list the members * of a class or package.
标签： database connection MakeAPIDB program
上传时间： 2013-11-25
上传用户：miaochun888
51串行令牌格式 a51编译 Read data from serial port and write into buffer DPTR pointed in XRAM if a data frame is received and calculate the check sum if a information frame is received return control byte only
标签： data pointed buffer serial
上传时间： 2015-06-14
上传用户：极客
基于simulink的uwb仿真 uwb.mdl: UWB model - open this to begin. uwb_lib.mdl: Library blocks for UWB model. uwb_init.m: Initialization called before model is loaded. uwb_settings: Sets up structure containing system parameters ( uwb in workspace). uwb_imr.m: Initializes UWB channel impulse response. uwb_sv_*.m: Four M-files used to generate channel impulse responses (MAT files).
上传时间： 2013-12-22
上传用户：gengxiaochao
Included are the files wav1.m, wav2.m, wavecoef.mat and readme. wav2 function implements the tree structured wavelet transform of the input matrix, up to the given level of decomposition. Wav2 uses another function called wav1, which takes the well known wavelet transform of the given matrix. Daubechies wavelet coefficients are used for wavelet transform operation wahich is saved in wavcoeff.mat.
标签： implements the wav Included
上传时间： 2015-06-23
上传用户：爱死爱死
