2018年12月28日
Codeforces Round #529 -C- Powers Of Two（二进制拆分）
摘要： A positive integer xx is called a power of two if it can be represented as x=2yx=2y, where yy is a non-negative integer. So, the power... 阅读全文
posted @ 2018-12-28 16:31 black_hole6 阅读(366) 评论(0) 推荐(0)