Task

Write a program or a script that returns the date of the last Fridays of each month of a given year.

The year may be given through any simple input method in your language (command line, std in, etc).



Example of an expected output:

./last_fridays 2012
2012-01-27
2012-02-24
2012-03-30
2012-04-27
2012-05-25
2012-06-29
2012-07-27
2012-08-31
2012-09-28
2012-10-26
2012-11-30
2012-12-28



Related tasks
 Five weekends
 Day of the week
 Find the last Sunday of each month


import: date
 
: lastFridays(y)
| m |
   Date.JANUARY Date.DECEMBER for: m [
      Date newDate(y, m, Date.DaysInMonth(y, m))
      while(dup dayOfWeek Date.FRIDAY <>) [ addDays(-1) ]
      println
      ] ;