摘要: Description A balanced number is a non-negative integer that can be balanced if a pivot is placed at some digit. More specifically, imagine each digit 阅读全文
posted @ 2020-07-15 19:30 wuwendongxi 阅读(293) 评论(0) 推荐(0)
摘要: Description 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. 阅读全文
posted @ 2020-07-15 18:16 wuwendongxi 阅读(123) 评论(0) 推荐(0)