Consider the following C program:

        #include < stdio.h >
         int jumble (int x, int y)  {
               x = 2 * x + y ;
               return x ;
         }
         int main ( )  {
               int x=2, y=5 ;
               y = jumble (y, x) ;
               x = jumble (y, x) ;
               printf ("%d \n", x) ;
               return 0 ;
         }

The value printed by the program is ______.

Consider the following 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 _____.

Consider the following C program segment.

#include < stdio.h >
int main()
{
    char s1[7] = "1234", *p;
    p = s1 + 2;
   *p = ‘0’;
    printf("%s", s1);
}

What will be printed by the program?

Consider the following function written in the C programming language.

void foo(char *a){
 if ( *a && *a != ' '){
     foo(a+1);
     putchar(*a);
   }
}

The output of the above function on input “ABCD EFGH” is