Solution of the task: IMO Shortlist 1984 problem 12
Solutions
#Time ↓TaskUserSolutionCorrectness
138326 years, 11 monthsIMO Shortlist 1984 problem 12PETARMAT empty  
134287 yearsIMO Shortlist 1984 problem 12IvanSincic empty  
87108 years, 11 monthsIMO Shortlist 1984 problem 12andrija_ empty