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Binary search is performed on a sorted array of n elements. The search key is not in the array and falls
between the elements at positions m and m+1 (where 1 ≤ m <n). How many comparisons are needed in
the worst case scenario to determine that the key is not in the array?
a. ceil(log(n))
b. floor(log(n))
c. ceil(log(m))
d. floor(log(m))

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