这是一道ACM的关于交通运输的题目！主要用到了递归算法！有参考价值！-ACM on the subject of transport! Main uses recursive algorithm! Reference value!

一个系统搜索工具,使用了递归的算法,代码很成熟,希望能参考一下该代码,一边能更好的完成工作.-a system search tool, the use of a recursive algorithm, code very mature, hope to make reference to the code. better side of the completed work.

实现凸包算法，可以清晰的看见递归的过程，也可以看出最后的区域-Convex hull algorithm recursive process, you can clearly see, the last area can also be seen

It is one of the successful prediction algorithms to estimate frequently for unknown parameters with real time operation. The principle of Recursive Least Square depends on least square mathematical weighted. Also, Recursive Least Square can set the