摘要: 倍增写法 #include <bits/stdc++.h> #define rep(i, a, b) for (int i = a, i##end = b; i <= i##end; ++i) #define per(i, a, b) for (int i = a, i##end = b; i >= 阅读全文
posted @ 2020-11-03 22:18 AC-Evil 阅读(104) 评论(0) 推荐(0) 编辑