Leap Year

1. In last semester we learned the rules of leap years.
2. A year is a leap year if it is divisible by 4, unless it is a century year that is not divisible by 400. (1800 and 1900 are not leap years while 1600 and 2000 are.)
3. Write a C++ Boolean function isLeap(year) which determines whether a year is a leap year. (A Boolean function implies that its return value will be either true or false.)
4. Test your function with the following main program:

   
   int main()
   {
       int year;
       cout << "Please input a year -- ";
       cin >> year;
       if ( isLeap(year) )
           cout << endl << "It is a leap year." << endl;
       else
           cout << endl << "It is not a leap year." << endl;
       return 0;
   }
   

5. Combine your function and the above main() in a single .cpp file and submit it.

   ---

   The program may run as follows:

   
   Please input a year - 2013
   
   It is not a leap year.
   
   
   
   Please input a year - 2016
   
   It is a leap year.