摘要: D - aab aba baa 题面 Among the strings of length \(A + B\) containing \(A\) occurrences of a and \(B\) occurrences of b, find the string that comes \(K\ 阅读全文
posted @ 2021-05-25 21:03 Jude_Zhang 阅读(104) 评论(0) 推荐(0) 编辑