Algorithm for partitioning the integers into two groups

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Question

You are given an array A[1 .. n] of n integers, and one of them is x. Give an in-place O(n)-time algorithm for partitioning the integers into two groups such that the first group A[1 .. m] contains all non-x integers, and A[m+1 .. n] contains all elements which are equal to x, for some me [1, n-1].

Hint: Get the idea from Hoare's algorithm.]

Reference no: EM133220356

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