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GATE | GATE-CS-2005 | Question 35

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How many distinct binary search trees can be created out of 4 distinct keys? (A) 5 (B) 14 (C) 24 (D) 42

Answer: (B)

Explanation: See Question 2 of https://www.geeksforgeeks.org/data-structures-and-algorithms-set-23/

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Last Updated : 28 Jun, 2021
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