以链表的形式实现货物的管理,包括链表的创建,插入,删除,查询,更新等....

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

大数相乘的源代码,使用C++在VC环境中实现.-multiply large numbers of the source code, the use of C in the VC environment to achieve.

有需要的同仁载回去慢慢研究-need colleagues set back slowly study

一元多项式乘法　包含密运算　 新学数据结构的可以参考参考　-One dollar secret polynomial multiplication operations include the new data structure can refer to reference

这是一个用C++语言编写的约瑟夫环问题,旁附说明,已在测试环境下成功通过-This is a C language of Josephus, adjacent to report stated that the testing environment has been successfully adopted

产品进销存管理系统的设计与实现 内容：针对某一种行业的库房的产品进销存情况进行管理 要求： （一）采用一定的存储结构对库房的货品及数量进行分类管理 （二）可以进行产品类的添加、产品的添加以及产品数量的添加 （三）能够查询库房每种产品的总量、进货的日期、销出数量、销售时间等

迷宫算法！通过递归算法实现！找到最优路径，完成迷宫出口的查找！-maze algorithm! Through recursive algorithm! To find the optimal path to complete the maze exports to search!

8皇后问题-8 Queen

access数据库，实现教务管理的功能-access databases, realize the functions of educational administration

基于数据库设计一个网页,实现基本功能：增删改、查询、统计报表的功能要有.管理信息-A. General Queries- The system should be able to retrieve useful data stored in the database. B. Statistics Collection- The system should be able to generate useful statistics information. C. Modification of Data- The system should provide interface for the store managers to add, remove and update the data in the database. D. Dealing with special events in the system. Your system should be able to handle real life situations that may arise from running the business. E. You are required to implement a web user interface for your system. F. The user interface should be intuitive and effective to use. G. Please bear in mind that a casual user should not have problems to check some simple information. H. The system should provide an English UI. You can also design multi-lingual UI.