Who is free at 1:15 PM?
8 barbers can do Shampoo then, in the shop's own order.
No preference takes the lightest book of the 8 barbers open at 1:15 PM, so the work spreads across the shop instead of piling onto one chair.
That time has passed. Pick another.
8 barbers can do Shampoo then, in the shop's own order.
No preference takes the lightest book of the 8 barbers open at 1:15 PM, so the work spreads across the shop instead of piling onto one chair.