Međunarodna matematička olimpijada - Shortlist 1961

#TitleTagsSol.QualityDifficulty
1154IMO Shortlist 1961 problem 13
1155IMO Shortlist 1961 problem 21
1156IMO Shortlist 1961 problem 31
1157IMO Shortlist 1961 problem 41
1158IMO Shortlist 1961 problem 51
1159IMO Shortlist 1961 problem 61