Question

C programming problem please help my computer crashed

what is the output of each program ?

(c) #include <stdio.h> int main() { /* main */ int f3, t = 9; int func3 (int x); printf("Inside main, t = $d\n", t); f3 - func3(t); printf("Inside main, f3 = %d\n", f3); return 0; } /* main */ int func3 (int x) { /* func3 */ printf("Inside func3, X = %d\n", x); return x; } /* func3 */ (d) #include <stdio.h> int main() { /* main */ int f4, x = 9; int func 4 (int x); printf("Inside main, x = %d\n", x); f4 = func4 (x); printf ("Inside main, 84 - 8d\n", £4); return 0; } /* main */ int func4 (int x) { /* func4 */ printf("Inside func4, x = %d\n", x); return x; } /* func4 */

Answer 1

c. Answer (code output):

Inside main, t = 9
Inside func3, x = 9
Inside main, f3 = 9

Explanation (explained with comments in comments):

#include <stdio.h>

int main()

{ /* main */

      int f3, t = 9; // intializing t with 9

      //declaring func3 function

      int func3 (int x);

      //printing t value which is 9

      printf("Inside main, t = %d\n", t);

      //calling func3 and saving the return value to f3

      f3 = func3(t);

     

      //printing f3 which is a return value of func3

      printf("Inside main, f3 = %d\n", f3);

      return 0;

      /*main*/

}

int func3(int x)

{/*func3*/

    //printing the input parameter of function and returning the same

    printf("Inside func3, x = %d\n", x);

    return x;

}/*func3*/

d. Answer (code output):

This code will not compile

Explanation:

#include <stdio.h>
int main()
{ /* main */
   int f4, t = 9; // intializing t with 9

   //declaring func4 function
   int func4 (int x);
   //printing x value which is not declared in main method
   printf("Inside main, x = %d\n", x);

   //calling func4 and saving the return value to f4
   f4 = func4(t);

   //printing f4 which is a return value of func4
   printf("Inside main, f4 = %d\n", f4);
   return 0;
   /*main*/
}
int func4(int x)
{/*func4*/
//printing the input parameter of function and returning the same
printf("Inside func4, x = %d\n", x);
return x;
}/*func4*/