Ace test series 2023

Question

The return value of ace(4) is
 

int ace(int a)
{

    int x=1;

    static int k=1;

    if(a==1) return x;

    for(;k<a;++k)

    x=x+ace(k)*ace(a-k);

    return x;

}

A.15

B.4

C.10

D.Error

Answer 1

4 ave

 

Answer 2

Legit answer is 4

 

One can try for int k=1 , the correct answer will be 15 for that particular.