poj1665

简单题

#include <iostream>

#include <cstdio>

#include <cstdlib>

#include <cstring>

using namespace std;



#define pi 3.1415927



int revolution;

double travel_time, diameter;



int main()

{

    int t = 0;

    while (scanf("%lf%d%lf", &diameter, &revolution, &travel_time), revolution)

    {

        t++;

        double distance = revolution * pi * diameter / 12 / 5280;    

        double mph = distance * 3600 / travel_time;

        printf("Trip #%d: %.2f %.2f\n", t, distance, mph);

    }

    return 0;

}

View Code