#  Party  When  Question  Answer 


20180905 21:17:06  Announcement 
Problem A. Timetable ***** Here I'll try to clear up common difficulties in understanding the problem. First of all, you need to output such b that for given a, b and t the array x is the same as given. Second, x_i is not p_i in some mapping, it is maximum of p_i of all valid mappings. Third, we consider only valid mappings, i.e. all buses should be in time. 


20180905 20:49:53  Announcement 
Problem A. Timetable ***** We consider only integer sequences b. You should print "No" if there is no integer solutions. 


20180905 20:05:30  Announcement 
Problem A. Timetable ***** Note that for the second sample the answer b=(3, 4) is invalid, because in this case x would be (2, 2). 
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