2018年7月4日
CodeForces - 999B Reversing Encryption
摘要： B - Reversing EncryptionA string s of length n can be encrypted by the following algorithm:iterate over all divisors of n in decreasin... 阅读全文
posted @ 2018-07-04 14:55 Mercury_Lc 阅读(234) 评论(0) 推荐(0)
CodeForces - 999C Alphabetic Removals
摘要： C - Alphabetic Removals You are given a string s consisting of n lowercase Latin letters. Polycarp wants to remove exactly k character... 阅读全文
posted @ 2018-07-04 14:51 Mercury_Lc 阅读(173) 评论(0) 推荐(0)