On to functions

On to functions

#include <iostream>
#include <cstdlib>
using namespace std;

int sum (int x,int y)
{
  int sum;
  sum=x+y;
  return sum;
}
int xminus (int x,int y)
{
  int xminus;
  xminus=x-y;
  return xminus;
}
int product (int x,int y)
{
  int product;
  product=x*y;
  return product;
}
int division (int x,int y)
{
  int division;
  division=x/y;
  return division;
}
int residuo (int x,int y)
{
  int residuo;
  residuo=x%y;
  return residuo;
}
int main ()
{   int x,y,s,m,p,d,r;
    cout<< "Today we´re working in functions." << endl;
    cout<< "please choose the first integer: " << endl;
    cin>> x;
    cout<< "please choose the second integer: " << endl;
    cin>> y;
    s=sum(x,y);
    m=xminus(x,y);
    p=product(x,y);
    d=division(x,y);
    r=residuo(x,y);
    cout<< "The result between " << x << " + " << y << " is: " << s << endl;
    cout<< "The result between " << x << " - " << y << " is: " << m << endl;
    cout<< "The result between " << x << " x " << y << " is: " << p << endl;
    cout<< "The result between " << x << " / " << y << " is: " << d << endl;
    cout<< "The result between " << x << " % " << y << " is: " << r << endl;
  return 0;
}