TOT 2004 Fall - Senior O-Level p2 box contains 100 red, blue, white balls
Source:
February 25, 2020
Coloringcombinatorics
Problem Statement
A box contains red, blue, and white balls, balls in total. It is known that among any of them there are always balls of the same color. Find the minimal number such that among any balls there are always balls of the same color.