Curioustab

Home » C Programming » Declarations and Initializations

What will be the output of the program? #include int main() { int X=40; { int X=20; printf("%d ", X); } printf("%d\n", X); return 0; }

40 40
20 40
20
Error

Correct Answer: 20 40

Explanation:

In case of a conflict between a local variable and global variable, the local variable gets priority.

← Previous Question Next Question→

More Questions from Declarations and Initializations

What is the output of the program? #include int main() { union a { int i; char ch[2]; }; union a u; u.ch[0] = 3; u.ch[1] = 2; printf("%d, %d, %d\n", u.ch[0], u.ch[1], u.i); return 0; }
Which of the structure is incorrcet? 1 : struct aa { int a; float b; }; 2 : struct aa { int a; float b; struct aa var; }; 3 : struct aa { int a; float b; struct aa *var; };
1 : typedef long a; extern int a c; 2 : typedef long a; extern a int c; 3 : typedef long a; extern a c;
Which of the following operations are INCORRECT?
Which of the structure is correct? 1 : struct book { char name[10]; float price; int pages; }; 2 : struct aa { char name[10]; float price; int pages; } 3 : struct aa { char name[10]; float price; int pages; }
Which of the declaration is correct?
Which of the following correctly represents a long double constant?
If the definition of the external variable occurs in the source file before its use in a particular function, then there is no need for an extern declaration in the function.
Size of short integer and long integer would vary from one platform to another.
Range of float id -2.25e+308 to 2.25e+308

Discussion & Comments

No comments yet. Be the first to comment!

Join Discussion