TOT 024 1982 Autumn J2 10 or 15 objects colored w 2 colours, in a line
Source:
August 18, 2019
combinatoricsColoring
Problem Statement
A number of objects, each coloured in one of two given colours, are arranged in a line (there is at least one object having each of the given colours). It is known that each two objects, between which there are exactly or other objects, are of the same colour. What is the greatest possible number of such pieces?