2018年7月13日
Codeforces Round #495 (Div. 2) ABCD
摘要： A. Sonya and Hotels A. Sonya and Hotels Sonya decided that having her own hotel business is the best way of earning money because she can profit and r 阅读全文
posted @ 2018-07-13 14:24 starry_sky 阅读(321) 评论(0) 推荐(0) 编辑