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The maximum number of binary trees that can be formed with

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Programming and data structure miscellaneous

Programming & Data Structure

  1. The maximum number of binary trees that can be formed with three unlabelled nodes is
    1. 1
    2. 5
    3. 4
    4. 3
Correct Option: B

It is given that n = 3
1
2nCn
n + 1

1
6C3
3 + 1

1.6!
= 5
4 × 3!3!

Therefore, there are 5 trees that can be formed with three unlabelled node.



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