Which of the following methods can be used to find the nth Catalan number?
(a) Recursion
(b) Binomial coefficients
(c) Dynamic programming
(d) Recursion, Binomial Coefficients, Dynamic programming
The question was posed to me by my school principal while I was bunking the class.
This key question is from Catalan Number using Dynamic Programming topic in chapter Dynamic Programming of Data Structures & Algorithms II