Sumar restar multiplicar dividir

int suma(int a, int b)
{
  return a + b;
}

int resta(int a, int b)
{
  return a - b;
}

int multiplicacion(int a, int b)
{
  return a*b;
}

int division(int a, int b)
{
  if(b==0)
  {
    return 0;
  }
  else
  {
    return a/b;
  }
}