Binary Trees?
You must not have read the description or looked at the test case inputs/outputs or else you would have answered your own question (which basically took the original description and rearranged the words).
"return an integer of the number of identical binary trees that can be created from the same list"
vs.
"number of permutations which create the same tree as the given input list?"
Thanks for your help.
Question is unclear. Are you looking for the number of permutations which create the same tree as the given input list?
- subs December 09, 2014