What is the definition for Ackermann’s function?
(a) A(1,i) = i+1 for i>=1
(b) A(i,j) = i+j for i>=j
(c) A(i,j) = i+j for i = j
(d) A(1,i) = i+1 for i<1
The query is from Trees in section Trees of Data Structures & Algorithms I
This question was addressed to me during an online interview.