1002liu - 博客园

2013年5月19日

摘要： There are N little kids sitting in a circle, each of them are carrying some java beans in their hand. Their teacher want to select M kids who seated i 阅读全文

posted @ 2013-05-19 00:13 1002liu 阅读(290) 评论(0) 推荐(0) 编辑