2018年6月25日
pat advanced level 1049
摘要： 1049 Counting Ones (30)（30 分） The task is simple: given any positive integer N, you are supposed to count the total number of 1's in the decimal form 阅读全文
posted @ 2018-06-25 13:43 深圳地铁Princess 阅读(137) 评论(0) 推荐(0)