Solution of the task: IMO Shortlist 2013 problem G5
Solutions
#Time ↓TaskUserSolutionCorrectness
141688 years, 1 monthIMO Shortlist 2013 problem G5PETARMAT empty  
105839 years, 6 monthsIMO Shortlist 2013 problem G5abeker empty  
727110 years, 7 monthsIMO Shortlist 2013 problem G5leonstaresinic empty