Describe your algorithm in plain english

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Question: You are given an array A of n images. Some of these images might be identical. For i # j E [n] you can invoke a comparison procedure that returns whether the images Ali] and A j are identical or not. This procedure is denoted by A[i] == A[j]. Design a divide and conquer algorithm to decide whether there is an image that appears more than n/2 times in A using O(n) invocations of the comparison procedure. Solutions using asymptotically more invocations of the comparison procedure receive the grade of 0.

(a) Describe your algorithm in plain English (maximum 5 short sentences).

(b) Describe your algorithm in pseudocode.

(c) Provide a concise argument of correctness of your algorithm.

(d) State the recurrence of the number of invocations of the comparison procedure (do not forget the base case).

Reference no: EM133404545

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