What is the output of the program? #include int main() { extern int a; printf("%d ", a); return 0; } int a=20;

Question

What is the output of the program? #include<stdio.h>
int main()
{
    extern int a;
    printf("%d
", a);
    return 0;
}
int a=20;

Accepted Answer

extern int a; indicates that the variable a is defined elsewhere, usually in a separate source code module.

printf("%d ", a); it prints the value of local variable int a = 20. Because, whenever t…

What is the output of the program? #include<stdio.h> int main() { extern int a; printf("%d\n", a); return 0; } int a=20;