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;
}
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)
B. O(2*n)
C. O(n2)
D. O(2n)
Answer: Option A
This Question Belongs to Data Structure >> Miscellaneous On Data Structures
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