2015年8月14日
2015 HUAS Summer Contest#4~F
摘要： DescriptionA subsequence of a given sequence is the given sequence with some elements (possible none) left out. Given a sequence X = another sequence... 阅读全文
posted @ 2015-08-14 21:36 简约。 阅读(210) 评论(0) 推荐(0) 编辑