#include<iostream>
#include<iomanip>
using namespace std;
int main()
{
float r, h, c, s,V,S,v; //c是圆周长，s是圆面积，V是圆球体积，S是圆球表面积
float pi = 3.141592; //v是圆柱体积
cout << "piease enter r,h:";
cin >> r >> h;
c = 2 * pi*r;
s = r * r*pi;
V = (4.0 / 3.0)*pi*r*r*r;
S = 4 * pi*r*r;
v = pi * r*r*h;
cout << setiosflags(ios::fixed) << setiosflags(ios::right)
<< setprecision(2);
cout << "c=" << c << endl;
cout << "s=" << s << endl;
cout << "V=" << V << endl;
cout << "S=" << S << endl;
cout << "v=" << v << endl;
return 0;
}
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