ddt

数据结构试验-打印输出计算机本科专业4年每学期的课表；C++实现；图的邻接表存储结构以及拓扑排序的基本思想(Data structure test- printout computer 4 years of undergraduate per semester timetables C++ achieve basic idea of ​ ​ the adjacency table storage structure and topological sorting)

这半查找法 是一种快速查找算法 查找效率比较高 容易实现 理想的查找算法(This search method is a fast and find more efficient algorithms to find easy to implement the ideal search algorithm)

给定n种物品和一背包。物品i的重量是wi>0,价值为vi>0,背包的容量为c。选择装入背包的物品，使得装入背包中物品的总价值最大。(Given n kinds of goods and a backpack. Weight of the item i is wi> 0, the value of vi> 0, knapsack capacity c. Select the items into the backpack, so into the backpack of items in the total value of the maximum.)

二叉树的中序遍历，先序遍历以及后序遍历的算法(Binary tree in preorder traversal, preorder traversal and postorder traversal algorithm)

键盘任意输入一组字母或数字生成无序数组，对数组按ASCII顺序进行排序（排序要求至少用两种排序算法），再从键盘输入一个值进行二分查找，返回查找成功或者失败的信息(Keyboard input and a group of letters, or any number of arrays, and generate disordered array sort order according to the ASCII at least two requirements (sort of), sorting algorithms from the keyboard input a value dichotomy, returns to find success or failure of the information)

说明：  标准答案习题1 1.1 简述C++语言程序的结构特点。 答： （1）C++程序由一个或多个函数组成，其中至少有一个主函数main()，程序从主函数开始执行，由主函数来调用其他函数。(Standard answer to Exercise 11.1 on C++ Language program structural characteristics. Answer: (1) C++ Procedures by one or more functions, of which at least one of the main function main (), the procedure started from the main function, from the main function to call the other function.)

说明：  定义一个类SortArray继承自MyArray，在该类中定义函数sort实现排序功能。 定义一个类ReArray继承自MyArray，在该类中定义函数reverse实现逆转功能。 定义一个类AverArray继承自MyArray，在该类中定义函数Aver实现求解整数的平均值。 定义NewArray类，同时继承了SortArray、ReArray和AverArray，使得NewArray类的对象同时具有排序、逆转和求平均值的功能。在继承的过程中声明为虚基类，体会虚基类在解决二义性问题中的作用。 (Define a class SortArray inherited from MyArray, defined in the class sorting function sort implementation. Define a class ReArray inherited from MyArray, define the function in reverse to achieve such reversal function. Define a class AverArray inherited from MyArray, defined in the class to solve integer function Aver achieve the average. Defined NewArray class, and inherits SortArray, ReArray and AverArray, making the object of both NewArray class sorting, reversing, and the mean value of the function. In the process of succession declared as virtual base classes, virtual base class experience in resolving ambiguities of the role.)

此程序用于解决8皇后问题，运行后输出8皇后问题的所有解(This program is used to solve the 8 queens problem, all solutions of 8 queens problem output operation.)

通过学习奥赛培训课程，利用回溯加递归的编程技巧完成的迷宫问题(Training courses through learning Orsay, plus use of recursive programming skills back to complete the maze problem)

背包算法的c++简单实现，很有用的，可以看看(Knapsack algorithm)