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GATE | GATE CS 2013 | Question 42

  • Last Updated : 28 Jun, 2021
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What is the return value of f(p,p), if the value of p is initialized to 5 before the call? Note that the first parameter is passed by reference, whereas the second parameter is passed by value.

int f(int &x, int c) {
   c = c - 1;
   if (c==0) return 1;
   x = x + 1;
   return f(x,c) * x;

(A) 3024
(B) 6561
(C) 55440
(D) 161051

Answer: (B)

Explanation: See

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