Difference between revisions of "GATE2013 q42"

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Q.42 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

Solution

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Q.42 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

Solution[edit]