The not-so-hard-working flights
Discrete Mathematics
Level
2
In the country of Brilliantia, there are airports built recently such that the distances between any two airports are all different from one another.
A plane will always fly from an airport to the nearest airport. Let an origin of an airport be another airport that flies planes to .
What is the maximum number of origins an airport can have?
by
Thành Đạt Lê