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GATE | Gate IT 2005 | Question 50
In a binary tree, for every node the difference between the number of nodes in the left and right subtrees is at most 2. If the height of the tree is h > 0, then the minimum number of nodes in the tree is:
(A)
2h - 1
(B)
2h - 1 + 1
(C)
2h - 1
(D)
2h
Answer
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