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- Question
What will be the output of the program?
#include<stdio.h> int main() { static int a[2][2] = {1, 2, 3, 4}; int i, j; static int *p[] = {(int*)a, (int*)a+1, (int*)a+2}; for(i=0; i<2; i++) { for(j=0; j<2; j++) { printf("%d, %d, %d, %d\n", *(*(p+i)+j), *(*(j+p)+i), *(*(i+p)+j), *(*(p+j)+i)); } } return 0; }
Options- A. 1, 1, 1, 1
2, 3, 2, 3
3, 2, 3, 2
4, 4, 4, 4 - B. 1, 2, 1, 2
2, 3, 2, 3
3, 4, 3, 4
4, 2, 4, 2 - C. 1, 1, 1, 1
2, 2, 2, 2
2, 2, 2, 2
3, 3, 3, 3 - D. 1, 2, 3, 4
2, 3, 4, 1
3, 4, 1, 2
4, 1, 2, 3 - Correct Answer
- 1, 1, 1, 1
2, 2, 2, 2
2, 2, 2, 2
3, 3, 3, 3
- 1. Bitwise can be used to reverse a sign of a number.
Options- A. Yes
- B. No Discuss
- 2. 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
- 3. Bitwise can be used to generate a random number.
Options- A. Yes
- B. No Discuss
- 4. 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
- 5. Bitwise & can be used to check if more than one bit in a number is on.
Options- A. True
- B. False Discuss
- 6. The preprocessor can trap simple errors like missing declarations, nested comments or mismatch of braces.
Options- A. True
- B. False Discuss
- 7. It is necessary that a header files should have a .h extension?
Options- A. Yes
- B. No Discuss
- 8. Bitwise | can be used to set multiple bits in number.
Options- A. Yes
- B. No Discuss
- 9. Bitwise & can be used to check if a bit in number is set or not.
Options- A. True
- B. False Discuss
- 10. A pointer union CANNOT be created
Options- A. Yes
- B. No Discuss
More questions
Correct Answer: No
Correct Answer: Yes
Correct Answer: No
Correct Answer: False
Correct Answer: True
Correct Answer: False
Explanation:
False, the preprocessor cannot trap the errors, it only replaces the macro with the given expression. But the compiler will detect errors.
Correct Answer: No
Explanation:
No, the header files have any kind of extension.
Correct Answer: Yes
Correct Answer: True
Correct Answer: No
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