Consider the following C functions.

int tob(int b, int* arr) {
     int i;
     for (i=0; b>0; i++) {
           if (b%2) arr[i] = 1;
           else arr[i]=0;
           b = b/2;
    }
    return (i);
}

____________________

int pp(int a, int b) {
     int arr[20];
     int i, tot = 1, ex, len;
     ex = a;
     len = tob (b, arr);
     for (i=0;  i < len; i++) {
           if (arr[i] ==1)
              tot = tot * ex;
           ex = ex * ex;
    }
    return (tot);
}

The value returned by pp (3, 4) is ________.

Consider the following C function.

void convert(int n){

    if(n < 0)

        printf("%d",n);

    else {

        convert(n/2);

        printf("%d",n%2);

    }

}

Which one of the following will happen when the function convert is called with any positive integer n as argument?

Consider the following C program :

#include<stdio.h>

int r()

{

        static int num=7;

        return num--;

}

int main()

{

        for(r();r();r())

        printf("%od ",r());

        return 0;

}

Which one of the following values will be displayed on execution of the programs?

Consider the following C code. Assume that unsigned long int type length is 64 bits.

unsigned long int fun(unsigned long int n){
     unsigned long int i, j = 0, sum = 0;
     for (i = n; i > 1; i = i/2) j++;
     for ( ; j > 1; j = j/2) sum++;
     return(sum);
}

The value returned when we call fun with the input $${2^{40}}$$ is