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

     #include <stdio.h>
        int main()
        {
            unsigned int num = 20;
            num = ~num;
            printf("%d\n", num);
        }
    

1. 1. -21

   
   
   

   2. Compilation Error

   
   
   

   3. 20

   
   
   

   4. Runtime Error

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   20

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

    #include <stdio.h>
        int main()
        {
            if (7 & 8)
            printf("All");
                if ((~7 & 0x000f) == 8)
                    printf("that glitters is not gold.\n");
        }
    

1. 1. All

   
   
   

   2. All that glitters is not gold

   
   
   

   3. that glitters is not gold

   
   
   

   4. Compilation Error

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   that glitters is not gold

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

    #include <stdio.h>
        void main()
        {
            int n1 = 100;
            int n2 = sizeof(n1++);
            printf("n1 is %d", n1);
        }
    

1. 1. n1 is 100

   
   
   

   2. Compilation Error

   
   
   

   3. Runtime Error

   
   
   

   4. Garbage value

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   n1 is 100

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

    #include 
        void main()
        {
            int n = 6;
            int *ptr1 = &n;
            int *ptr2 = ptr1++;
            int Res = ptr1 - ptr2;
            printf("%d", Res);
        }
    

1. 1. 1

   
   
   

   2. 6

   
   
   

   3. Compilation Error

   
   
   

   4. Runtime Error

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   1

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

     #include <stdio.h>
        void main()
        {
            int p = 6, q, r;
            q = --p;
            r = p--;
            printf("%d %d %d", p, q, r);
        }
    

1. 1. 5 5 4

   
   
   

   2. 5 4 5

   
   
   

   3. Compilation Error

   
   
   

   4. 4 5 5

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   4 5 5

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