Problem A. 442. (December 2007)
A. 442. The n-element subsets of a set of size n2+n-1 are distributed into two groups. Prove that one of those groups contains n pairwise disjoint sets.
Miklós Schweitzer Competition, 2007
Deadline expired on January 15, 2008.
7 students sent a solution. 5 points: Korándi Dániel, Lovász László Miklós, Nagy 235 János, Nagy 314 Dániel, Tomon István, Tossenberger Anna, Wolosz János.