求解答帅哥美女们求解答

调用函数求一个圆柱的表面积和体积求解答问提刚刚学不会请大家多多帮助

知道计算公式么？

#include <iostream>
using namespace std;
#define PI 3.1415926
void calc(double r,double h,double *area,double *volume)
{
    *area = 2*PI*r*r + 2*PI*r*h;
    *volume = PI*r*r*h;
}

int main()
{
    double r,h,area,volume;
    cin>>r>>h;
    calc(r,h,&area,&volume);
    cout<<"area="<<area<<",volume="<<volume<<end;
}