The recurrence relation capturing the optimal execution time of the Towers of Hanoi problem with n discs is
(A) T(n) = 2T(n − 2) + 2
(B) T(n) = 2T(n − 1) + n
(C) T(n) = 2T(n/2) + 1
(D) T(n) = 2T(n − 1) + 1
Answer: (D)
Explanation: See question 1 of https://www.geeksforgeeks.org/data-structures-and-algorithms-set-29/amp/
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