Solution of the task: IMO Shortlist 1999 problem A2
Solutions
#Time ↓TaskUserSolutionCorrectness
135068 years, 4 monthsIMO Shortlist 1999 problem A2rhldj empty  
120738 years, 8 monthsIMO Shortlist 1999 problem A2PETARMAT empty  
719310 years, 6 monthsIMO Shortlist 1999 problem A2abeker empty