Who is free at 9:30 AM?
8 barbers can do Shape-up then, in the shop's own order.
No preference takes the lightest book of the 8 barbers open at 9:30 AM, so the work spreads across the shop instead of piling onto one chair.
8 barbers can do Shape-up then, in the shop's own order.
No preference takes the lightest book of the 8 barbers open at 9:30 AM, so the work spreads across the shop instead of piling onto one chair.