C and C++ program to calculate the square root of different numbers

# include"iostream.h"
# include"math.h"
int sroot(int  n)
{
 return(sqrt(n));
}
long int sroot(long int  n)
{
 return(sqrt(n));
}
double sroot(double n)
{
 return(sqrt(n));
}
void main()
{
 int num;
 long int num1;
 double num2;
 cout << "Enter the value of num ";
 cin >> num;
 cout <<  "Enter the value of num1";
 cin >> num1;
 cout << "Enter the value of num2 ";
 cin >> num2;
 cout << "\nSquare root of int is " << sroot(num);
 cout << "\nSquare root of long int is " << sroot(num1);
 cout << "\nSquare root of double is " << sroot(num2);
}