HDU1.2.2 Biker's Trip Odometer

勉强能算作数学题吧···注意单位转换即可

#include <cstdio>
using namespace std;

#define p 3.1415927

int main()
{
	int N=1;
	while(1){
		float d,t;
		int r;
		scanf("%f%d%f",&d,&r,&t);
		if(r==0)
			return 0;
		float dis,MPH;
		dis=p*d*r/12/5280;
		MPH=dis/t*3600;
		printf("Trip #%d: %.2f %.2f\n",N,dis,MPH);
		N++;
	}
	return 0;
}