C questions with answer

Variable naming rule in c programming language:

(q) What will be output of the following program?

void main()

{

char * emp name=”raja”;

printf("%s",emp name);

getch();

}

Output: Compilation error

Explanation:

Error: Invalid variable name. Except underscore there should not be any special character in name of variable event blank space.

(q) What will be output of the following program?

void main()

{

long int new=5l;

printf("%ld",new);

getch();

}

Output: 5

Explanation:

We can use c++ keyword in variable name in c programming. (But should not use, why?)