Solution of the task: IMO Shortlist 1998 problem C1
Solutions
#Time ↓TaskUserSolutionCorrectness
121067 years, 4 monthsIMO Shortlist 1998 problem C1PETARMAT empty  
91378 years, 8 monthsIMO Shortlist 1998 problem C1ad empty  
303911 yearsIMO Shortlist 1998 problem C1kristijan empty