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[Other] 综合实验哈夫曼编码 DL : 0: 1．n个叶结点,权分别为w1,w2,• • • ,wn的二叉树中，带权路径长度WPL最小的二叉树叫最优二叉树，也叫霍夫曼树。 2．霍夫曼算法：1）根据给定的权值{w1,w2,• • • ,wn}构造n个二叉树F={T1,T2,• • • ,Tn}每个Ti只有一个根结点，权为wi。2）在F中选取两棵根结点的权值最小的树构成一棵新的二叉树，其根的权值为左右子树根的权值的和。3）F中删去这两棵树，加上新得的树。4）重复2）3）直到只剩一棵树。 -1. N leaf nodes, the right to w1, w2,# 8226# 8226, wn the binary tree, with the right path length WPL smallest binary tree called Optimal binary tree, the tree is also called Hoffman. 2. Hoffman algorithm : 1) According to the weights (w1, w2,# 8226# 8226# 8226, wn) n binary tree structure F = (T1, T2,# 8226# 8226# 8226, Tn) each only a Ti Root, the right to wi. 2) In 1984 two F Root in the value of the right to the smallest tree constitute a new binary tree, the roots of the right value for the son around the roots and the value of the right. 3) F deleted these two trees, coupled with the new tree. 4) repeat 2) 3) until only a tree.
Date : 2026-01-11 Size : 1kb User : yy
[Other] ds_baogao DL : 0: 哈夫曼编码与解码演示程序 1、从初始界面中给出的信息选择相应功能； 2、从终端读入字符集大小n，以及n个字符和n个权值。建立huffman树，并将它存于文件hfmtree.dat中 3、利用已经建好的huffman树对文件tobetran.dat中的正文进行编码，然后将结果存入文件codefile.dat中； 4、利用已经建好的huffman树将文件codefile.dat中的代码进行译码，结果存入文件textfile.dat中； 5、将文件codefile.dat以紧凑格式显示在终端上，每行50个； 6、将已在内存中的huffman树以直观的方式显示在终端上； -Huffman encoding and decoding demo 1, from the initial information given in the interface to select the appropriate function 2, read from the terminal character set size n, and n and n characters of the right values. Huffman tree establishment, and it is stored in documents hfmtree.dat in 3, has been built using huffman trees tobetran.dat the document is encoded in the body, and then the results into a document in codefile.dat 4, has been built using huffman tree will be a good document codefile.dat decoding of the code, the result into the document in textfile.dat 5, in order to compact the file format codefile.dat displayed on the terminal, 50 per line 6, will have huffman tree in memory intuitive way to show that in the terminal
Date : 2026-01-11 Size : 267kb User : 郑亮
[Other] HuffmanCode DL : 0: (1)鼠标输入一个待压缩短文本文件，统计文本文件中各字符的个数作为权值，生成哈夫曼树。 (2)将文本文件利用哈夫曼树进行编码。 (3)把哈夫曼编码用二进制位紧缩到一个变量中，利用位运算进行真正的数据压缩。 (4)界面友好，易于操作,采用菜单方式进行选择。 -(1) the mouse to enter a short text file to be compressed, statistics text file as the number of characters in the weights to generate Huffman trees. (2) to a text file encoded using Huffman tree. (3) the Huffman binary bit tight to a variable-bit computing for the real use of data compression. (4) friendly interface, easy operation, with menu items selected.
Date : 2026-01-11 Size : 1.81mb User : 其
[Other] CS2208_DSLab_Programs DL : 0: CS2208 - Data Structures Lab (Anna University) EXERCISES 1a. Implement singly linked lists. 1b. Implement doubly linked lists. 2. Represent a polynomial as a linked list and write functions for polynomial addition. 3. Implement stack and use it to convert infix to postfix expression 4. Implement a double-ended queue (dequeue) where insertion and deletion operations are possible at both the ends. 5. Implement an expression tree. Produce its pre-order, in-order, and postorder traversals. 6. Implement binary search tree. 7. Implement insertion in AVL trees. 8. Implement priority queue using binary heaps 9. Implement hashing with open addressing. 10. Implement Prim s algorithm using priority queues to find MST of an undirected graph.
Date : 2026-01-11 Size : 205kb User : Narayana Swamy
[Other] libiary DL : 0: 图书管理基本业务活动包括：对一本书的采编入库、清除库存、借阅和归还等等。试设计一个图书管理系统，将上述业务活动借助于计算机系统完成。要求：（1）每种书的登记内容至少包括书号、书名、著者、现存量和总库存量等五项。（2）作为演示系统，不必使用文件，全部数据可以都在内存存放。要用 B-树（4 阶树）对书号建立索引，以获得高效率。（3）系统应有以下功能：采编入库、清除库存、借阅、归还、显示（以凹入表的形式显示）等。-Library management basic business activities include: editing of a book storage, remove stock, borrow and return and so on. Try to design a library management system, the operations described above by means of a computer system to complete. Requirements: register content (1) of each book includes at least ISBN, title, author, and total inventory of existing other five. (2) as a demonstration system, do not use a file, all the data can all be stored in memory. Use the B- tree (4 TREES) ISBN indexed to obtain high efficiency. (3) The system should have the following features: editing storage, clearing inventory, borrow, return, display (in the form of a concave of the table) and the like.
Date : 2026-01-11 Size : 3kb User : 杨若兮
[Other] foresfire DL : 0: 规则： % (1)正在燃烧的树变成空格位； % (2)如果绿树格位的最近邻居中有一个树在燃烧，则它变成正在燃烧的树； % (3)在空格位，树以概率p生长； % (4)在最近的邻居中没有正在燃烧的树的情况下树在每一时步以概率f(闪 % 电)变为正在燃烧的树。 % 参考文献: % 祝玉学，赵学龙译，<<物理系统的元胞自动机模拟>>, p23(Rule: % (1) the burning trees turn into spaces; % (2) if the nearest neighbor sites in the trees have a tree in the burning, it becomes a burning tree; % (3) in spaces, and trees grow in probability p; % (4) in the nearest neighbor, there is no burning tree in the case of the tree at each step, with probability f (flashing) % electricity) into a burning tree. % references: % Zhu Yuxue, translated by Zhao Xuelong, the "physical simulation system of cellular automaton, p23)
Date : 2026-01-11 Size : 1kb User : 马铃薯的
[Other] 高级数据结构 DL : 0: c++实现以下题目（可以用visio2015编译） 1.序列和的前n小元素（优先队列） 2.破译密文（并查集） 3.逆序对（树状数组）　 4.郁闷的出纳员（伸展树） 5.星际争霸（Treap）(C++ implements the following topics (can be compiled with visio2015) 1. sequence and the former n small elements (priority queues) 2. deciphering ciphertext (and checking the collection) 3. inverse pairs (tree array) 4. depressing tellers (stretching trees) 5. StarCraft (Treap))
Date : 2026-01-11 Size : 281kb User : 剑豪