I used to use an ohm meter and a binary search algorithm to find the broken bulb in the series strands (waaaaay back in the day). My dad gave me the task as a

I used to use an ohm meter and a binary search algorithm to find the broken bulb in the series strands (waaaaay back in the day). My dad gave me the task as a challenge. I was quite young and into electronics, but it was before I had access to computers (or even calculators for that matter).