Set of 1983^3 points of the space R^3
Source:
September 9, 2010
geometrycombinatoricsColoringcounting3D geometryIMO Shortlist
Problem Statement
Let be the set of points of the space all three of whose coordinates are integers between and (including and ). A coloring of is a map from to the set {red, blue}. How many colorings of are there satisfying the following property: The number of red vertices among the vertices of any right-angled parallelepiped is a multiple of ?