pku acm竞赛专用，含有多种算法的解题报告，程序员提高自身水平可以参考，会极大地提高编程功力-pku acm race-exclusive and contain a variety of algorithms to solve problems, programmers can improve their own standard of reference, will greatly improve programming skill

1009_edge.rar，1009题的题解

这是北京大学Acm上所有题目源代码，超好-This is the code of all the problems on the pku acm online judge!

PKU ACM 北大ACM集训队内部资料-the datas of PKU ACM