« Vrati se
A wobbly number is a positive integer whose digits are alternately zero and non-zero with the last digit non-zero (for example, 201). Find all positive integers which do not divide any wobbly number.

Slični zadaci

#NaslovOznakeRj.KvalitetaTežina
2319IMO Shortlist 2009 problem N70
2263IMO Shortlist 2007 problem N72
2233IMO Shortlist 2006 problem N73
2203IMO Shortlist 2005 problem N72
2146IMO Shortlist 2003 problem N81
1897IMO Shortlist 1994 problem N62