1943136_ac_0ms_76k.c

北大大牛代码 1240道题的原代码 超级权威

# include <stdio.h>
# include <math.h>
# define PAI 2*asin(1)
# define min(a,b) a>b ? b: a
int main()
{
	double r, h, A1, d1, A2, d2;

	while(scanf("%lf%lf%lf%lf%lf%lf",&r,&h,&d1,&A1,&d2,&A2)==6)
	{
		A1 = PAI*r*fabs(A1-A2)/(180*sqrt(h*h+r*r));
		A1 = min(A1,2*PAI*r/sqrt(r*r+h*h)-A1);
		printf("%.2lf\n",sqrt(d1*d1+d2*d2-2*d1*d2*cos(A1)));
	}
	return 1;
}