Suggestions
Source: May Olympiad(Olimpiada de Mayo) 2010
May 10, 2018
combinatorics
Problem Statement
Let be a integer , where we have a polygon with sides and coins, we have to paint the vertices of this polygon with colors and we've to put the coins in vertices of the polygon. In each second the coins will go to the neighbour vertex, going in the clockwise.
Determine the values of such that is possible paint and choose the initial position of the coins where in each second the coins are in vertices of distinct colors