2014年12月19日
I - All in All
摘要： You have devised a new encryption technique which encodes a message by inserting between its characters randomly generated strings in a clever way. Be... 阅读全文
posted @ 2014-12-19 22:36 高数 阅读(356) 评论(0) 推荐(0)
E - Puzzle( UVA-227)
摘要： PuzzleA children's puzzle that was popular 30 years ago consisted of a 5x5 frame which contained 24 small squares of equal size. A unique letter of th... 阅读全文
posted @ 2014-12-19 00:52 高数 阅读(382) 评论(0) 推荐(0)