2019年12月21日
Educational Codeforces Round 78 (Rated for Div. 2) C. Berry Jam
摘要： Karlsson has recently discovered a huge stock of berry jam jars in the basement of the house. More specifically, there were 2n2n jars of strawberry an 阅读全文
posted @ 2019-12-21 10:23 __MEET 阅读(299) 评论(0) 推荐(0) 编辑