Binary Search Algorithms explained using security camera footage

I used to live in a building that had a communal kitchen for over 100 students. As you might imagine, there were almost always dishes that weren't washed in the sink. A group at my school pitched the idea to put up a Nest Cam to catch culprits and call them out on it using the Nest Cam feed. To illustrate my point, let's say you found dirty dishes at 12 pm, and you hadn't been in the kitchen for a day. Think about the way that you would search for the person who left the dishes.