7月4日 Satellites
Satellites
#include <iostream>
#include <cmath>
using namespace std;
int main() {
const double pi = 3.14159265358979323846;
const double earthR = 6440;
double a = 0, s = 0;
std::string str = "";
while (std::cin >> s >> a >> str) {
if(str == "min"){
a = a / 60;
}
double r1, r2;
double r = s + earthR;
// 圆弧距离
r1 = (pi * 2 * r) * (a / 360);
// 直线距离
r2 = 2 * r * sin((pi * a) / 360);
if(a > 180)
r1 = 2 * pi * r - r1;
printf("%.6f %.6f\n", r1, r2);
}
return 0;
}