GATE CSE 2018 | Question: 21

Question

Consider the following $\text{C}$ program:

#include<stdio.h>

int counter=0;

int calc (int a, int b) {
        int c;
        counter++;
        if(b==3) return (a*a*a);
        else {
                c = calc(a, b/3);
                return (c*c*c);
        }
}

int main() {
        calc(4, 81);
        printf("%d", counter);
}

The output of this program is ______.

Comments

Anyone know how to see the output of what the calc() function is returning??

I know it will be very huge number but even if I change to long long int then also not able to see output. just wanted to know is there is any facality in C to see that much huge no. below is my code feel free to edit and let me know if you are able to see output. cause it is outputing 0 and i think this will going off the double doube int max limit.

https://ideone.com/H3FCkD
 

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Just count the number of digits in the result. And a double value can hold how many digits?

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thanks this works...🙂

Answer 1

 

4 function calls.

counter = 4