Будильник
Given a day of the week encoded as 0=Sun, 1=Mon, 2=Tue, ...6=Sat, and a
boolean indicating if we are on vacation, return a string of the form "7:00"
indicating when the alarm clock should ring. Weekdays, the alarm should be
"7:00" and on the weekend it should be "10:00". Unless we are on vacation --
then on weekdays it should be "10:00" and weekends it should be "off".
This exercise was converted to PLM from the excellent exercising site
http://codingbat.com/