I subscribed to https://www.dailycodingproblem.com/ and having fun resolving the problems here. I've just learned to code in Go so I'm coding here in Go.
p9_airbnb_nonadjacentsum means it is the problem #9, reported as having been asked at Airbnb interview and is related to the non adjacent sum.
For each problem, I leaves the subject at the beginning of the main.go file.