Human Resource Machine/Year 3

Instructions

Copy Floor

Ignore the INBOX for now, and just send the following 3 letters to the OUTBOX:

B U G

The Facilities Management staff gas placed some items over there on the carpet for you. If only there were a way you could pick them up…

Strategy

This year you get a fourth instruction: COPYFROM.

COPYFROM

This instruction is always accompanied by a number. The instruction tells the worker to walk over to the box on the floor labeled with the specified number, and copy the value that's placed in the box. Note that you cannot instruct the worker to COPYFROM a box that has no contents.

Apparently the IN conveyor is busted, and management is not interested in anything it contains. Instead, you have a set of six boxes on the floor, labeled 0 through 5. Your task is to place the letters of the word "BUG" on the OUT conveyor. To do this, you'll need to identify where on the floor those letter lie, and instruct the worker to gather them in the correct order. Your floor should look as follows:

U 0	J 1	X 2
G 3	B 4	E 5

Therefore, you need to write a program which grabs letters from boxes 4, 0, and 3, in that order:

   COPYFROM 4
   OUTBOX  
   COPYFROM 0
   OUTBOX  
   COPYFROM 3
   OUTBOX  

Optimizing

It is not possible to further optimize this solution.

Performance

Steps     Size      Speed
Goal        6         6
Reached     6         6