Finding a hermit
There are five holes arranged in a line. A hermit hides in one of them. Each night, the hermit moves to a different hole, either the neighboring hole on the left or the neighboring hole on the right. Once a day, you get to inspect one hole of your choice. How do you make sure you eventually find the hermit?
Let the holes be A,B,C,D and E. Start from any one end . Say A . look in it first day and the next day . if you don’t find him , look in the next hole for the next two days continue this process up to E you will get him with a maximum of 8 days or less..
Similar to above but with two less checks. Holes A, B, C, D, E. If the holes are not arranged in circle, start with any hole next to the last one and do the following pattern in opposite direction. E.g. go to hole D, wait for two days if no hermit is there, she is also not in E no need to check that one. Move to C, wait for two days if she is not there, move to B wait for two days and you’ll catch her either in A or B.. (sorry thinking about my ex).
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