Exercise #$2$: Odd$-$Even

Write a C$++$ program that prompts the user to input an integer, the program then does the following:

Make sure that the integer is positive; otherwise print an informative statement.

Print whether the number is even or odd.

Sample input $/$ output:

Enter an integer $-13$

Please enter a positive integer.

Enter an integer $28$

$28$ is Euen.

Enter an integer $2121$ is Odd.