Light Switches in the Cellar : Solved
About the Light Switches in the Cellar : Solved category
It doesn't work with led bulbs
Anything goes right?
Bad problem. Assumes all bulbs work the same way. Not completely based on logic of math
Turn 2 switches for 1 minute, then switch off one of them, go upstairs and you have on, off and worm
Show me how you think question?
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