Function MCQs

What is #include ?

If storage class is not specified for a local variable, then the default class will be auto.

What will be the output of the following C code?

#include <stdio.h>
int x = 5;
void main()
{
    int x = 3;
    m();
    printf("%d", x);
}
void m()
{
    x = 8;
    n();
}
void n()
{
    printf("%d", x);
}

What will be the output of the following C code (without linking the source file in which ary1 is defined)?

#include <stdio.h>
int main()
{
    extern ary1[];
    printf("scope rules\n");
}

What will be the output of the following C code?

#include <stdio.h>
static int x;
void main()
{
    int x;
    printf("x is %d", x);
}

Which of the following is a correct format for declaration of function?

Automatic variables are allocated space in the form of a . . . . . . . .

The value obtained in the function is given back to main by using . . . . . . . . keyword.

What will be the output of the following C code?

#include <stdio.h>
int main()
{
    auto i = 10;
    const auto int *p = &i
    printf("%d\n", i);
}