human
show me an algorithm to calculate efficiently the product of binomials in the form P(x) = x + a, e.g. (x+1)*(x+2)*(x+3)...*(x+n) using FFT. Provide step by step instructions
gpt
--- Reasoning ---
1. Is the question multiple-choice question?
No
2. Is it implied multiple-choice question?
No
3. If two experts were independently asked the question, will the final answer be exactly the same?
No

--- Answer ---
open