简单的说，RRDtool (Round Robin Database Tool)就是一个强大的绘图的引擎，很多工具例如MRTG都可以调用rrdtool绘图。-RRDtool is the OpenSource industry standard, high performance data logging and graphing system for time series data. RRDtool can be easily integrated in shell scr ipts, pe

game using client and server to join a room.

用C++写的小程序，用递归与分治法实现循环赛日常问题-Small program written in C++ using recursive divide and conquer the round robin day-to-day problems