56. What will be the output of the following C code?
    

    #include <stdio.h>
        void main()
        {
            {
                int R = 81;
            }
            printf("%d", R);
        }
    

1. 1. Undefined

   
   
   

   2. Compilation Error

   
   
   

   3. 81

   
   
   

   4. Garbage value

   
   
   

   5. None of these

   
   
   

---

1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   Compilation Error
   

   main.c: In function ‘main’:
   main.c:7:22: error: ‘R’ undeclared (first use in this function)
            printf("%d", R);
                         ^
   main.c:7:22: note: each undeclared identifier is reported only once for each function it appears in
   

---

57. What will be the output of the following C code?
    

    #include <stdio.h>
        static int var = 51;
        void main()
        {
            int var = 91;
            {
                var = 41;
            }
            printf("%d", var);
        }
    

1. 1. 51

   
   
   

   2. 91

   
   
   

   3. 41

   
   
   

   4. Compilation Error

   
   
   

   5. None of these

   
   
   

---

1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   41

---

---

58. What will be the output of the following C code?
    

    #include <stdio.h>
        int num;
        void main()
        {
            A();
            printf("%d", num);
        }
        void A()
        {
            num = 14;
        }
    

1. 1. 14

   
   
   

   2. 0

   
   
   

   3. Undefined

   
   
   

   4. Compilation Error

   
   
   

   5. None of these

   
   
   

---

1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   14

---

59. What will be the output of the following C code?
    

      #include <stdio.h>
        int num = 15;
        void main()
        {
            int num = 13;
            A();
            printf("%d", num);
        }
        void A()
        {
            num = 18;
            B();
        }
        void B()
        {
            printf("%d ", num);
        }
    

1. 1. 15 13

   
   
   

   2. 13 15

   
   
   

   3. 13 18

   
   
   

   4. 18 13

   
   
   

   5. None of these

   
   
   

---

1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   18 13

---

---

60. What will be the output of the following C code?
    

    #include <stdio.h>
        void main()
        {
            int num = 13;
            {
                num = 14;
                printf("%d", num);
            }
        }
    

1. 1. 14

   
   
   

   2. 13

   
   
   

   3. Compilation Error

   
   
   

   4. Runtime Error

   
   
   

   5. None of these

   
   
   

---

1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   14

---