下楼问题，质数问题，分书问题，开灯问题，排球问题，排课问题，等c++源码-Problem downstairs, prime number problem, sub-book questions, questions turn on the lights, volleyball questions, Course Scheduling problem, such as c++ source code

C语言程序，彩灯,实现依次亮依次灭。延时0.2秒。-C language program, colorful lights

交通灯控制系统，利用图的遍历与查找技术实现计算多岔路口的交通灯设置问题。-Traffic Light Control System, to graph traversal Find technology to calculate multi fork traffic lights set problem.