摘要: http://codeforces.com/contest/437/problem/B 等差数列1 + 2*k的lowbit()为2^0 等差数列2 + 4*k的lowbit()为2^1 等差数列4 + 8*k的lowbit()为2^2 等差数列8 + 16*k的lowbit()为2^3 阅读全文
posted @ 2019-08-24 16:50 dodoBehind 阅读(166) 评论(0) 推荐(0) 编辑
摘要: http://codeforces.com/contest/437/problem/A 阅读全文
posted @ 2019-08-24 14:38 dodoBehind 阅读(144) 评论(0) 推荐(0) 编辑