数据结构实验之一，对顺序表进行的增删查改，交过的

假设一个文件中出现了8种符号S0，SQ，S2，S3，S4，S5，S6，S7，那么每种符号要编码，至少需要3bit。假设编码成000，001， 010，011，100，101，110，111。那么符号序列S0S1S7S0S1S6S2S2S3S4S5S0S0S1编码后变成 000001111000001110010010011100101000000001，共用了42bit。我们发现S0，S1，S2这3个符号出现的频率比较大，其它符号出现的频率比较小，我们采用这样的编码方案：S0到S7的码辽分别01，11，101，0000，0001，0010，0011， 100，那么上述符号序列变成011110001110011101101000000010010010111，共用了39bit。尽管有些码字如 S3，S4，S5，S6变长了(由3位变成4位)，但使用频繁的几个码字如S0，S1变短了，所以实现了压缩。对于上述的编码可能导致解码出现非单值性：比如说，如果S0的码字为01，S2的码字为011，那么当序列中出现011时，你不知道是S0的码字后面跟了个1，还是完整的一个S2的码字。因此，编码必须保证较短的编码决不能是较长编码的前缀。符合这种要求的编码称之为前缀编码。要构造符合这样的二进制编码体系，可以通过二叉树来实现。-Suppose a file appears in eight kinds of symbols S0, SQ, S2, S3, S4, S5, S6, S7, then each symbol to be encoded, at least 3bit. Suppose encoding 000,001, 010,011,100,101,110,111. Then the symbolic sequence S0S1S7S0S1S6S2S2S3S4S5S0S0S1 encoded into 000001111000001110010010011100101000000001, sharing a 42bit. We found that S0, S1, S2 these three symbols the frequency of relatively large, the other symbols the frequency is relatively smal

大二上学期在学校的数据结构实验课程设计课上自己出于兴趣写的一个郝夫曼树的应用，而课本上的程序不能直接使用，初学者学起来会很困难呢，而我的这个程序有具体的实现，详细的源码介绍，希望对初学者有帮助！

C++控制台程序，在不知道城市方位的情况下对某个城市的餐馆和小吃店进行导航定位。使用链表数据结构，采用继承的方式进行类的编写实现餐馆导航。

clustering data at matlab

vfp表单，锁住和解锁数据表。（压缩文件）-Probe form, the lock and unlock data sheets. (Compressed files)

DataMatrixDEMO这个工程实现对DataMatrix的编码和解码的过程，识别率非常的高

its about finding the Triad Numbers-its about finding the Triad Numbers...

java中几种常用的排序算法。 用Java语言实现的各种排序，包括插入排序、冒泡排序、选择排序、Shell排序、快速排序、归并排序、堆排序、SortUtil等。-java of several commonly used sorting algorithm. Using Java language to achieve a variety of sorting, including the Insertion Sort, Bubble Sort, Selection Sort, Shell Sort, Quick Sort, Merge Sort, Heap Sort, SortUtil such.

Ora10GSQLReference oracle10gSQL语言参考-Ora10GSQLReference

Many applications use connection/object pool. A program may require a IMAP connection pool and LDAP connection pool. One could easily implement a IMAP connection pool, then take the existing code and implement a LDAP connection pool. The program grows, and now there is a need for a pool of threads. So just take the IMAP connection pool and convert that to a pool of threads (Copy, paste, find, replace????). Need to make some changes to the pool implementation? Not a very easy task, since the code has been duplicated in many places. Re-inventing source code is not an intelligent approach in an object oriented environment which encourages re-usability. It seems to make more sense to implement a pool that can contain any arbitrary type rather than duplicating code. How does one do that? The answer is to use type parameterization, more commonly referred to as templates.-connection/object pool. A program may require a IMAP connection po ol and LDAP connection pool. One could easily im plemen