摘要:
#define DeBUG#include #include #include #include #include #include #include #include #include #include #include #include #include #include using namespace std ;#define zero {0}#define INF 2000000000#define EPS 1e-6typedef long long LL;const double PI = acos(-1.0);inline int sgn(double x){return fabs 阅读全文