1002liu - 博客园

2013年9月9日

摘要： Problem Description Claire and her little friend, ykwd, are travelling in Shevchenko's Park! The park is beautiful - but large, indeed. N feature spots in the park are connected by exactly (N-1) undir... 阅读全文

posted @ 2013-09-09 20:13 1002liu 阅读(215) 评论(0) 推荐(0) 编辑