Solution of the task: IMO Shortlist 1961 problem 1
Solutions
#Time ↓TaskUserSolutionCorrectness
234672 years, 4 monthsIMO Shortlist 1961 problem 1Froon empty  
191263 years, 10 monthsIMO Shortlist 1961 problem 1hrvojezlep empty  
165013 years, 1 monthIMO Shortlist 1961 problem 1kristijan empty