Write a class datetype it can perform the following operations on a date , in addition to the operation already defined :

1-set the month

2-set the day

3-set the year

4-return the month

5-return the day

6-return the year

7-test the year is a leap year

8-return the number of days in the month for example if the date is 3-18-2006 the number of days to be returned is 31 because there is 31 days in march

9-return the number of days passed in the year for example if the date is 3-18-2006 the number of days passed in the year is 77.note that the number of days returned also includes the current days.

10-return the number of days remaining in the year for example if the date is 3-18-2006 the number of days remaining in the year is 288.

11-calculate the new date by adding a fixed number of days to the date for example if the date is 3-18-2006 and the days to be added are 25 the new date is 4-12-2006.

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