Write a program that inputs a series of integers and passes them one at a time to function even, which uses the modulus operator to determine whether an integer is even. The function should take an integer argument and return true if the integer is even and false otherwise.

Question

What will be an ideal response?

Answer 1

```
// Determine whether inputs are odd or even.
#include
using namespace std;

bool isEven( int ); // function prototype

int main()
{
int x; // current input

// loop for 3 inputs
for ( int i = 1; i <= 3; i++ )
{
cout << "Enter an integer: ";
cin >> x;

// determine if input is even
if ( isEven( x ) )
cout << x << " is an even integer\n\n";
else
cout << x << " is an odd integer\n\n";
} // end for

cout << endl;
} // end main

// isEven returns true if a is even
bool isEven( int a )
{
return !( a % 2 );
} // end function isEven
```