2018年4月18日
Codeforces Round #475 (Div. 2) ABC
摘要： A. Splits Let's define a split of n as a nonincreasing sequence of positive integers, the sum of which is n. For example, the following sequences are 阅读全文
posted @ 2018-04-18 18:26 starry_sky 阅读(254) 评论(0) 推荐(0) 编辑