unpredictable permutation造句

例句与造句

1. A randomized algorithm for generating permutations generates an "'unpredictable permutation "'if its outputs are permutations on a set of items ( described by length-" n " binary strings ) that cannot be predicted with accuracy significantly better than random by an adversary that makes a polynomial ( in " n " ) number of queries to the oracle prior to the challenge round, whose running time is relativized by the oracle for the permutation.
2. It's difficult to find unpredictable permutation in a sentence. 用unpredictable permutation造句挺难的