Let $q$ be, as usual, a power of a prime. Show that there are q+1 numbers among{1,2, ..., q^{2}+q+1} with the following
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Let $q$ be, as usual, a power of a prime. Show that there are q+1 numbers among{1,2, ..., q^{2}+q+1} with the following
Let $q$ be, as usual, a power of a prime. Show that there areq+1 numbers among{1,2, ..., q^{2}+q+1} with the followingproperty: if someone picks two different numbers from the list, andtells you their difference, then you know the numbers.