2014年5月6日
Last non-zero Digit in N!
摘要： Problem DescriptionThe expression N!, read as "N factorial," denotes the product of the first N positive integers, where N is nonnegative. So, for exa... 阅读全文
posted @ 2014-05-06 21:21 daydaycode 阅读(384) 评论(0) 推荐(0) 编辑