2016年4月9日
Codeforces Round #305 (Div. 2) A
摘要： Description While Mike was walking in the subway, all the stuff in his back-bag dropped on the ground. There were several fax messages among them. He 阅读全文
posted @ 2016-04-09 10:54 樱花落舞 阅读(297) 评论(0) 推荐(0) 编辑