摘要: 题目描述: A wqb-number, or B-number for short, is a non-negative integer whose decimal form contains the sub- string "13" and can be divided by 13. For ex 阅读全文
posted @ 2020-07-29 00:41 hachuochuo 阅读(66) 评论(0) 推荐(0) 编辑