摘要: FFT #include<cstdio> #include<algorithm> #include<cmath> using namespace std; const double Pi = acos(-1.0); int n,m,rev[2100005]; struct complex{ doub 阅读全文
posted @ 2021-08-21 16:43 RiverSheep 阅读(80) 评论(0) 推荐(0)