Solution of the task: IMO Shortlist 2005 problem N5
Solutions
#Time ↓TaskUserSolutionCorrectness
191658 months, 1 weekIMO Shortlist 2005 problem N511235 empty  
167683 years, 6 monthsIMO Shortlist 2005 problem N5abeker empty  
126955 years, 8 monthsIMO Shortlist 2005 problem N5PETARMAT empty