HBC236062非对称加密算法RSAK-skip Permutation题解

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For a permutation P=p1,p2,,pnP = p_1, p_2, cdots, p_nP=p1,p2,,pn of nnn, let f(P,k)ff(P,k) be the number of iii satisfying 1≤i

For a permutation P=p1,p2,⋯ ,pnP = p_1, p_2, cdots, p_nP=p1​,p2​,⋯,pn​ of nnn, let f(P,k)f(P, k)f(P,k) be the number of iii satisfying 1≤i

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标签： HBC236062非对称加密算法RSAK-skip Permutation题解