What will be the output of the program (sample.c) given below if it is executed

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Question

What will be the output of the program (sample.c) given below if it is executed from the command line?
cmd> sample one two three

/* sample.c */
#include<stdio.h>

int main(int argc, char *argv[])
{
    int i=0;
    i+=strlen(argv[1]);
    while(i>0)
    {
        printf("%c", argv[1][--i]);
    }
    return 0;
}

Options
A. three two one
B. owt
C. eno
D. eerht

Correct Answer

eno

More questions

1. Bitwise can be used to reverse a sign of a number.
Options
A. Yes
B. No

Discuss

Correct Answer: No

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

Correct Answer: Yes

3. Bitwise can be used to generate a random number.
Options
A. Yes
B. No

Discuss

Correct Answer: No

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

Correct Answer: False

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

Discuss

Correct Answer: True

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

Discuss

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.

7. It is necessary that a header files should have a .h extension?
Options
A. Yes
B. No

Discuss

Correct Answer: No

Explanation:

No, the header files have any kind of extension.

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

Discuss

Correct Answer: Yes

9. Bitwise & can be used to check if a bit in number is set or not.
Options
A. True
B. False

Discuss

Correct Answer: True

10. A pointer union CANNOT be created
Options
A. Yes
B. No

Discuss

Correct Answer: No

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Discussion

What will be the output of the program (sample.c) given below if it is executed from the command line?
cmd> sample one two three
/* sample.c / #include<stdio.h> int main(int argc, char argv[]) { int i=0; i+=strlen(argv[1]); while(i>0) { printf("%c", argv[1][--i]); } return 0; }

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What will be the output of the program (sample.c) given below if it is executed from the command line? cmd> sample one two three /* sample.c */ #include<stdio.h> int main(int argc, char *argv[]) { int i=0; i+=strlen(argv[1]); while(i>0) { printf("%c", argv[1][--i]); } return 0; }

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What will be the output of the program (sample.c) given below if it is executed from the command line?
cmd> sample one two three
/* sample.c / #include<stdio.h> int main(int argc, char argv[]) { int i=0; i+=strlen(argv[1]); while(i>0) { printf("%c", argv[1][--i]); } return 0; }