作业2.30

#include<iostream>
#include<cmath>
using namespace std;
int sroot(int i)
{
return sqrt(i);
}
long sroot(long l)
{
return sqrt(l);
}
double sroot(double d)
{
return sqrt(d);
}
int main()
{
int i=4;
long l=640000;
double d=0.16;
cout<<"i的二次方根为"<<sroot(i)<<endl;
cout<<"l的二次方根为"<<sroot(l)<<endl;
cout<<"d的二次方根为"<<sroot(d)<<endl;
return 0;
}