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Home C Programming Arrays See What Others Are Saying!
  • Question
  • What will be the output of the program?
    #include<stdio.h>
    
    int main()
    {
        static int arr[] = {0, 1, 2, 3, 4};
        int *p[] = {arr, arr+1, arr+2, arr+3, arr+4};
        int **ptr=p;
        ptr++;
        printf("%d, %d, %d\n", ptr-p, *ptr-arr, **ptr);
        *ptr++;
        printf("%d, %d, %d\n", ptr-p, *ptr-arr, **ptr);
        *++ptr;
        printf("%d, %d, %d\n", ptr-p, *ptr-arr, **ptr);
        ++*ptr;
        printf("%d, %d, %d\n", ptr-p, *ptr-arr, **ptr);
        return 0;
    }
    


  • Options
  • A. 0, 0, 0
    1, 1, 1
    2, 2, 2
    3, 3, 3
  • B. 1, 1, 2
    2, 2, 3
    3, 3, 4
    4, 4, 1
  • C. 1, 1, 1
    2, 2, 2
    3, 3, 3
    3, 4, 4
  • D. 0, 1, 2
    1, 2, 3
    2, 3, 4
    3, 4, 5

  • Correct Answer
  • 1, 1, 1
    2, 2, 2
    3, 3, 3
    3, 4, 4 


  • More questions

    • 1. Is it necessary that in a function which accepts variable argument list there should be at least be one fixed argument?

    • Options
    • A. Yes
    • B. No
    • Discuss
    • 2. Bitwise can be used to generate a random number.

    • Options
    • A. Yes
    • B. No
    • Discuss
    • 3. A function that receives variable number of arguments should use va_arg() to extract the last argument from the variable argument list.

    • Options
    • A. True
    • B. False
    • Discuss
    • 4. Bitwise & can be used to check if more than one bit in a number is on.

    • Options
    • A. True
    • B. False
    • Discuss
    • 5. The preprocessor can trap simple errors like missing declarations, nested comments or mismatch of braces.

    • Options
    • A. True
    • B. False
    • Discuss
    • 6. It is necessary that a header files should have a .h extension?

    • Options
    • A. Yes
    • B. No
    • Discuss
    • 7. Bitwise | can be used to set multiple bits in number.

    • Options
    • A. Yes
    • B. No
    • Discuss
    • 8. Bitwise & can be used to check if a bit in number is set or not.

    • Options
    • A. True
    • B. False
    • Discuss
    • 9. A pointer union CANNOT be created

    • Options
    • A. Yes
    • B. No
    • Discuss
    • 10. What will be the output of the program?
      #include<stdio.h>
      #include<stdlib.h>
      
      int main()
      {
          union test
          {
              int i;
              float f;
              char c;
          };
          union test *t;
          t = (union test *)malloc(sizeof(union test));
          t->f = 10.10f;
          printf("%f", t->f);
          return 0;
      }
      

    • Options
    • A. 10
    • B. Garbage value
    • C. 10.100000
    • D. Error
    • Discuss


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