first_n_dates.py

"""
If you have a task that you need to complete on a regular basis, you can set it up in Asana as a recurring task. 
One option is to schedule the task to repeat every k weeks on specified days of the week.

It would be useful to be able to view the first n dates for which the task is scheduled. 
Given the first date for which the task is scheduled, return an array of the first n dates.

In this task, you'll likely need month lengths and weekday names, provided here:

Month lengths from January to December: 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31.

During leap years February has 29 days.
Names of weekdays: "Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday".

January 1, 2015 was a Thursday.

Example

For firstDate = "01/01/2015", k = 2, daysOfTheWeek = ["Monday", "Thursday"] and n = 4, the output should be

recurringTask(firstDate, k, daysOfTheWeek, n) = 
   ["01/01/2015", "05/01/2015", "15/01/2015", "19/01/2015"]


firstDate falls on a Thursday. The first Monday after it is "05/01/2015". 
Since k = 2, the next two days for which the task is scheduled are Thursday, January 15, and Monday, January 19.

Array containing the first n dates (including the first one) on which the task is scheduled in the chronological order.
"""