摘要: Let L denote the number of 1s in integer D's binary representation. Given two integers S1 and S2, we call D a XHY number if S1≤L≤S2. With a given D, w 阅读全文
posted @ 2016-04-13 14:09 hudiwei-hdw 阅读(299) 评论(0) 推荐(0) 编辑