Međunarodna matematička olimpijada - Shortlist 1965

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1178IMO Shortlist 1965 problem 11
1179IMO Shortlist 1965 problem 21
1180IMO Shortlist 1965 problem 30
1181IMO Shortlist 1965 problem 41
1182IMO Shortlist 1965 problem 50
1183IMO Shortlist 1965 problem 60