摘要: DescriptionBessie is tired of multiplying pairs of numbers the usual way, so she invented her own style of multiplication. In her style, A*B is equal to the sum of all possible pairwise products between the digits of A and B. For example, the product 123*45 is equal to 1*4 + 1*5 + 2*4 + 2*5 + 3*4 + 阅读全文
posted @ 2011-07-21 09:42 bingo~ 阅读(850) 评论(0) 推荐(0) 编辑