Who is free at 12:00 PM?
3 barbers can do Shampoo then, in the shop's own order.
No preference takes the lightest book of the 3 barbers open at 12:00 PM, so the work spreads across the shop instead of piling onto one chair.
3 barbers can do Shampoo then, in the shop's own order.
No preference takes the lightest book of the 3 barbers open at 12:00 PM, so the work spreads across the shop instead of piling onto one chair.