Međunarodna matematička olimpijada 1981

[ 1981 | IMO ]
#NaslovOznakeRj.KvalitetaTežina
1558IMO Shortlist 1981 problem 11
1564IMO Shortlist 1981 problem 71
1565IMO Shortlist 1981 problem 83
1569IMO Shortlist 1981 problem 121
1572IMO Shortlist 1981 problem 151
1574IMO Shortlist 1981 problem 171