int x = 126, y = 105;
do{
   if(x > y) x = x - y;
   else y = y - x;
}while(x!=y);
printf('%d", x);

The output of the given C code segment is __________. (Answer in integer)

 #include < stdio.h>
void foo(int *p, int x) {
    *p = x;
}
int main( ) {
    int *z;
    int a = 20, b=25;
    z = &a;
    foo(z, b);
    printf("%d", a);
    return 0;
}

The output of the given C program is _________. (Answer in integer)

Consider the following C program:

#include <stdio.h>

int main() {

   int a = 6;

   int b = 0;

   while(a < 10) {

      a = a / 12 + 1;

      a += b;}

   printf("%d", a);

   return 0;}

Which one of the following statements is CORRECT?

Consider the following C function.

int fun ( int n ) {

   int x = 1, k ;

   if ( n == 1) return x ;

   for( k = 1 ; k < n ; ++ k )

       x = x + fun( k ) * fun( n - k ) ;

   return x ;

}

The return value of fun (5) is ________.