摘要: 169.Numbers Let us call P(n) - the product of all digits of number n (in decimal notation). For example, P(1243)=1*2*4*3=24; P(198501243)=0. Let us ca 阅读全文
posted @ 2018-04-27 14:35 thges 阅读(177) 评论(0) 推荐(0) 编辑