Change_ZHONG

#include#include#includeint main(){ double r,a,b,c,t; double x1,x2; while(scanf("%lf%lf",&r,&a)!=EOF){ t=-1.0; b=r-a; c=r*r*r/a/2-2*r*r+a*r; if(b*b-4*c<0

#include #include #include using namespace std; #define eps 1e-8 const int maxn=105; struct point { double x,y; }; struct circle { point p; double r; }c[maxn];

#include int main() { int a,b,x0,y0; int T; while(~scanf("%d",&T)) { while(T--) { scanf("%d%d%d%d",&a,&b,&x0,&y0); if(x0*x0/