ISRO | ISRO CS 2020 | Question 34

Consider the following recursive C function that takes two arguments

unsigned int rer (unsigned int n, unsigned int r) {
  if (n > 0) return (n% r + rer(n/r, r));
  else return 0;

What is the return value of the function rer when it is called as rer (513, 2) ?
(A) 9
(B) 8
(C) 5
(D) 2

Answer: (D)


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