Variables Easy Questions and Answers

Which variable has the longest scope in the following C code?

#include <stdio.h>
    int p;
    int main()
    {
        int q;
        return 0;
    }
    int r;

What is the scope of an external variable?

From the point of declaration to the end of the file being compiled

What is the scope of a function?

From the point of declaration to the end of the file being compiled

Comment on the output of the following C code.

#include <stdio.h>
    int main()
    {
        int k;
        for (k = 0; k < 10; k++)
        int m = k;
        printf("%d", m);
    }

Syntax error in declaration of m

What will be the sequence of allocation and deletion of variables in the following C code?

#include <stdio.h>
    int main()
    {
        int num;
        {
            int var;
        }
    }

num->var, var->num

Variables