Member-only story
WALK-THROUGH
My Google Foobar journey
Level 2.1 — Elevator Maintenance

Index
- My Google FooBar Journey: Level 1 — Getting the Invitation.
- My Google FooBar Journey: Level 2.1 — Elevator Maintenance. (This one)
- My Google FooBar Journey: Level 2.2 — Gearing Up for Destruction.
The Story So far
You survived a week in Commander Lambda’s organization, and you even managed to get yourself promoted. Hooray! Henchmen still don’t have the kind of security access you’ll need to take down Commander Lambda, though, so you’d better keep working. Chop chop!
So now I had Level 2 access, but defeating Commander Lambda was still a long ways off. The next obstacle in my quest to free my bunny brethren, my next immediate key to progression, was a rather fun challenge.
Elevator Maintenance
At a cursory level, this is quite a simple one really; the devil is hidden in the edge cases. I initially started with a really unclean solution to force myself through, and for the most part it worked. However, I simply couldn’t crack open some of the test cases, no matter how many more hacks I introduced.