1002liu - 博客园

2013年5月19日

摘要： Alice lives in the country where people like to make friends. The friendship is bidirectional and if any two person have no less than k friends in com 阅读全文

posted @ 2013-05-19 00:11 1002liu 阅读(153) 评论(0) 推荐(0) 编辑