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Algorithms Quiz | Searching | Question 8

Consider a sorted array of n numbers and a number x. What would be the time complexity of the best known algorithm to find a triplet with sum equal to x. For example, arr[] = {1, 5, 10, 15, 20, 30}, x = 40. Then there is a triplet {5, 15, 20} with sum 40.

(A)

O(n)

(B)

O(n^2)

(C)

O(n Log n)

(D)

O(n^3)

Answer

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