2018年7月24日
PAT 1049 Counting Ones (30)
摘要： The task is simple: given any positive integer N, you are supposed to count the total number of 1's in the decimal form of the integers from 1 to N. F 阅读全文
posted @ 2018-07-24 22:37 赖兴宇 阅读(147) 评论(0) 推荐(0)
PAT 1022 Digital Library (30)
摘要： A Digital Library contains millions of books, stored according to their titles, authors, key words of their abstracts, publishers, and published years 阅读全文
posted @ 2018-07-24 16:30 赖兴宇 阅读(157) 评论(0) 推荐(0)