海盗船

#include #include #include #include #define N 200 #define inf 1e-6 typedef struct { double x; double y; }point; point points[N]; //点集 point chs[N]; //栈 int sp; //栈顶指针 //计算两点之间距离 doubl

#include #include #include struct P{ double x,y; }p[101],stack[101]; /* double getradiusby3point(double x1,double y1,double x2,double y2,double x3,double y3) { double x,y; double a11,a12,a21,a22