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MathNet 2014 Question 9

Math Olympiad Vault · MathNet 2014

Question 9

A deck of $8056$ cards has $2014$ ranks numbered $1$-$2014$. Each rank has four suits—hearts, diamonds, clubs, and spades. Each card has a rank and a suit, and no two cards have the same rank and the same suit. How many subsets of the set of cards in this deck have cards from an odd number of distinct ranks?