Skip to content / Đến nội dung
ThichHocToan.com

2023 AIME II Question 11

AIME · 2023 AIME II

Question 11

Find the number of collections of $16$ distinct subsets of $\{1, 2, 3, 4, 5\}$ with the property that for any two subsets $X$ and $Y$ in the collection, $X \cap Y \neq \emptyset.$