Simple example of Function Overload

#include <iostream>
using namespace std;
int add(int x, int y)
{
    int result;
    result = x+y;
    return result;
}
double add(double x, double y)
{
    double result;
    result = x+y;
    return result;
}
int sub(int x, int y)
{
    int result;
    result = x-y;
    return result;
}
double sub(double x, double y)
{
    double result;
    result = x-y;
    return result;
}
int mul(int x, int y)
{
    int result;
    result = x*y;
    return result;
}
double mul(double x, double y)
{
    double result;
    result = x*y;
    return result;
}
int divi(int x, int y)
{
    int result;
    result = x/y;
    return result;
}
double divi(double x, double y)
{
    double result;
    result = x/y;
    return result;
}
int main()
{
    double a;
    double b;
    int m,n;
    cin>>a>>b;
    cout<<add(a,b)<<endl;
    cout<<sub(a,b)<<endl;
    cout<<mul(a,b)<<endl;
    cout<<divi(a,b)<<endl;
    cin>>m>>n;
    cout<<add(m,n)<<endl;
    cout<<sub(m,n)<<endl;
    cout<<mul(m,n)<<endl;
    cout<<divi(m,n)<<endl;
    system("pause");
    return 0;
}