Question 13
A warehouse has four levels: the unloading area and floors 1, 2, 3. A robot uses a lift between floors. Each upper floor has four rotating compartments; eleven bags occupy the compartments shown.
The commands are:
- MU: move the lift up one floor.
- MD: move the lift down one floor.
- R: rotate the storage platform at the robot’s current floor one position counterclockwise.
- L: take one bag from the compartment beside the lift into the lift.
- U: unload one bag from the lift onto the truck.
For example, starting on floor 2, MU, R, R, R, L, MD, R, R, L, MD, MD, U, U moves bags 8 and 9 onto the truck.
Starting on floor 1 in the original arrangement, which bags are moved to the truck by R, R, L, MU, MU, R, R, MD, R, L, MD, MD, U, U?
The commands are:
- MU: move the lift up one floor.
- MD: move the lift down one floor.
- R: rotate the storage platform at the robot’s current floor one position counterclockwise.
- L: take one bag from the compartment beside the lift into the lift.
- U: unload one bag from the lift onto the truck.
For example, starting on floor 2, MU, R, R, R, L, MD, R, R, L, MD, MD, U, U moves bags 8 and 9 onto the truck.
Starting on floor 1 in the original arrangement, which bags are moved to the truck by R, R, L, MU, MU, R, R, MD, R, L, MD, MD, U, U?