请问
#include<iostream>
#include<cmath>
using namespace std;
const double PI=3.14;
double r;
double V1;
double V2(double PI,double r,double V1)
{
cin>>r;
V1=PI*3/4*pow(r,3);
cout<<V2;
}
int main()
{
V2();
return 0;
}
怎么该?
请问
#include<iostream>
#include<cmath>
using namespace std;
const double PI=3.14;
double r;
double V1;
double V2(double PI,double r,double V1)
{
cin>>r;
V1=PI*3/4*pow(r,3);
cout<<V2;
}
int main()
{
V2();
return 0;
}
怎么该?
#include<iostream>
#include<cmath>
using namespace std;
const double PI=3.14;
double r;
double V1;
double V2()
{
cin>>r;
V1=PI*3/4*pow(r,3);
cout<<V1;
}
int main()
{
V2();
return 0;
}