Write a function that takes an integer as a parameter and returns true if the
parameter is even and false if it is odd.

solutions:

//Passed in an integer
//Returns true if integer passed in is even, false if odd
bool is_even(int value)
{
   if (value % 2 == 0)
   {
      return true;
   }
   else
   {
      return false;
   }
}

-or-

//Passed in an integer
//Returns true if integer passed in is even, false if odd
bool is_even(int value)
{
   return (value % 2 == 0);
}