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Permutation = Hashing but not mathematichaly, there are equal from the perspective of Computer Science. Say we have a set S of items (s1,s2,s3, ... , sn) A) Find a random permutation of elements of S. One implemetation of this permutation in computer science will be: A => I don't need to permute the items themselves, but permuting a set of their indexes ...


What is meant by vectors here? Just the inputs and outputs of the function. The function $f$ takes, as input, a sequence of bits (for example, 1010), and returns a sequence of bits (for example, 1100); the text refers to such a sequence of bits as a vector Can someone explain this? Consider a function f that is made up of two operations: Take ...

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