GATE | GATE IT 2006 | Question 73

An array X of n distinct integers is interpreted as a complete binary tree. The index of the first element of the array is 0. If the root node is at level 0, the level of element X[i], i ≠ 0, is
(A) ⌊log₂ i⌋
(B) ⌈log₂ (i + 1)⌉
(C) ⌊log₂ (i + 1)⌋
(D) ⌈log₂ i⌉

Answer: (C)
Explanation:
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