2019年7月31日
PAT甲级——A1049 Counting Ones
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 @ 2019-07-31 14:55 自由之翼Az 阅读(309) 评论(0) 推荐(0)
PAT甲级——A1048 Find Coins
摘要： Eva loves to collect coins from all over the universe, including some other planets like Mars. One day she visited a universal shopping mall which cou 阅读全文
posted @ 2019-07-31 13:39 自由之翼Az 阅读(157) 评论(0) 推荐(0)