Lab 12 - day of year

As one of the requirements to earn a B- or higher, you must complete exercise 5 on p 409, a program to calculate which day of the year the user entered. At the very minimum, you will need to write two functions. These are their headers:

   bool isLeapYear(int y)
   int countDays(int m, int d, bool leap)

Lab 11 - circle calculations

As one of the requirements to earn a B- or higher, you must complete exercise 6 on pp 341-342, which requires you to solve a set of problems regarding the calculation of properties of a circle.

You need to write three functions; these are their headers:

   double radius(double x1, double y1,
                 double x2, double y2)
   double circumference(double r)
   double area(double r)