MathDB
Putnam 1957 B7

Source: Putnam 1957

July 1, 2022
Putnamgeometrycombinatorial geometrypolygon

Problem Statement

Let CC consist of a regular polygon and its interior. Show that for each positive integer nn, there exists a set of points S(n)S(n) in the plane such that every nn points can be covered by CC, but S(n)S(n) cannot be covered by C.C.