1 votes 1 votes The answer is given as 14.I calculated using Catalan number but the answer did not come as 14. Programming and DS binary-tree + – jenny101 asked Dec 9, 2016 jenny101 667 views answer comment Share Follow See 1 comment See all 1 1 comment reply mohit chawla commented Dec 9, 2016 reply Follow Share answer is coming as 14, it is right. see apply the formula 2nCn/n+1*(n!) now you need to multiply by n! also as objects are different so you need to take into account the permutation as each tree would be distinct when u interchange the objects position as each of them is distinct. 5 votes 5 votes Please log in or register to add a comment.
0 votes 0 votes constrcution will take 0(n) in WC and 0(logn) in BC no of unlabeeled Binary trees = no of labelled BST = catalan no so answer will be 14 anyways. Psy Duck answered Aug 13, 2022 Psy Duck comment Share Follow See all 0 reply Please log in or register to add a comment.