Live2d Test Env
摘要: A string a of length m is called antipalindromic iff m is even, and for each i (1 ≤ i ≤ m) ai ≠ am - i + 1. Ivan has a string s consisting of n lowerc 阅读全文
posted @ 2018-08-03 09:39 nimphy 阅读(360) 评论(0) 推荐(0) 编辑