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调度问题的回溯算法，算法中的经典问题。问题描述：假设有n个任务由k个可并行工作的机器完成。完成任务i需要的时间为ti。试设计一个算法找出完成这n个任务的最佳调度，使得完成全部任务的时间最早。(Scheduling problem backtracking algorithm is the classic problem. Problem Description: Suppose there are n-task by the k-parallel machine can be completed. The time required to complete the task i is ti. Try to design an algorithm to find completing these n-best task scheduling, making the earliest time to complete all tasks.)

to check the user has the administration rights is more complicated in windows 7, this is the sample to check it.

电位移控制台介绍和详细说明介绍了各种型号和实验(The electric displacement console and detailed description of the various models and experimental)

Воронежский гос университет, задача по сям

rfid实例阅读程序，可实现超高频，高频，低频卡的读写( rfid实例阅读程序，可实现超高频，高频，低频卡的读写 RFID instance reading program, you can achieve ultra high frequency, high frequency, low frequency card read and write)

这是一个实现用C语言发送电子邮件的小程序，可以把截获的键盘记录发送给监控的主机。(This is a realization of C language small program to send email, you can send intercepted keyloggers monitored host.)

集合的运算：交、并、补（难度系数：1.1） 全集：大写字母 ‘A’~’Z’ 要求实现以下功能： 1、集合的输入：自动去掉重复和非法的字符 2、集合的显示：输出集合的全部元素 3、输出一个给定集合的补集 4、输出两个给定集合的交集和并集 (jiao bing bu)

在WINDOWS 9X/NT下不通过WIN DDK而直接存取硬件的专用开发包，支持VISUAL C++和DELPHI/C++ BUILDER，需要32位编译器。TVicPort includes transparent support for Windows 95/98 and Windows NT (in Windows 9X/NT under WIN DDK is not passed directly access dedicated hardware development kits, support Visual C and Delphi/C BUILDER need 32 compiler. TVicPort includes transparent support for Windows 95/98 and Windows NT)

hangle unicode used AI

对于给定的两个线段，程序输出这两个线段之间的距离(For a given two line segments, the program output that the distance between two line segments)