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Data Structure · Q612

Miscellaneous on Data Structures

Programming · Data Structure · question 612

Q612

What is the space complexity of the following recursive implementation to find the nth fibonacci number? int fibo(int n) if(n == 1) return 0; else if(n == 2) return 1; return fibo(n - 1) + fibo(n - 2); int main() int n = 5; int ans = fibo(n); printf("%d",ans); return 0;

A.
O(1)
Answer
B.
O(2*n)
C.
O(n2)
D.
O(2n)

Answer: Option A

Solution

Answer: Option A
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