flashlight(2, b, w), --- flashlight(2, 8, 4)

[henh...@gmail.com]

flashlight(2, Batteries, Working)

(on the Net) i only see flashlight(2, 8, 4) being asked, mentioned,

but flashlight(2, 6, 3) is interesting too.


flashlight(2, 6, 4)

flashlight(2, 5, 3)


flashlight(3, 5, 3)


_____________________________________________

A flashlight takes 2 (working) batteries.

There are 8 batteries (on the Table), but some of them may be Dead (and Non-Conducting).

To guarantee that the flashlight gets turned on, what is the minimum number of battery pairs you need to test ?

[henh...@gmail.com]

where D = (b - w)

flashlight(1, b, w) = D+1



> flashlight(2, Batteries, Working)

> flashlight(Spec, Batteries, Working)