What's the minimum....
Source: May Olympiad(Olimpiada de Mayo)2008
February 2, 2018
combinatorics
Problem Statement
In the plane we have lines(not parallel and not concurrents), we have point(s) of intersections of this lines.
Sebastian has to paint this points such that in each line all the painted points are with colour differents, find the minimum(quantity) of colour(s) that Sebastian needs to paint this points.
If we have have lines(in this situation we have points), what's the minimum(quantity) of colour(s)?