2017年4月10日

摘要: In computer science, the Knuth-Morris-Pratt string searching algorithm (or KMP algorithm) searches for occurrences of a "word" W within a main "text s 阅读全文
posted @ 2017-04-10 18:43 Annetree 阅读(200) 评论(0) 推荐(0)
 
摘要: If we represent a date in the format YYYY-MM-DD (for example, 2017-04-09), do you know how many 9s will appear in all the dates between Y1-M1-D1 and Y 阅读全文
posted @ 2017-04-10 18:29 Annetree 阅读(416) 评论(0) 推荐(0)