Texas Instruments Puzzle Tanks User Manual page 15

P
ROGRAM
Expert Level
In the expert level the problems are more challenging. Suppose you had tanks
holding units of 6 and 5, and the goal is 8. There could be a couple of different
solutions:
You could do 6 - 5 eight times, emptying each of the remaining
units into the truck.
Or you could do 6 + 1 + 1.
Can you think of other solutions?
Master Level
At the Master level, the situation changes completely—there's no truck for stor-
age! One must obtain the target amount with only the two tanks provided.
Here's an example of a Master problem:
N :
OTE
A solu-
tion is recog-
nized whether
it's in one tank
or shared
between the
two tanks.
Here is a solution:
Graphic representation of
the problem.
Empty the 4-quart tank.
D
ESCRIPTION
Fill the 9-quart tank.
Move the contents of the 9-quart
tank into the 4-quart tank.
Move the contents of the 9-
quart tank to the 4-quart
tank.
Empty the 4-quart tank and
you are left with 1 quart!
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