How many distinct binary trees are constructed using 5 nodes?
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Correct answer: (A) 42
From BEL PE Computer Science PYQ, 17 Dec 2023 (8:30 AM)
This is question 69 of BEL PE Computer Science PYQ, 17 Dec 2023 (8:30 AM). See all questions of this paper with answers, or attempt the paper as a timed online test to get your score and all-India rank.