Pointer MCQs

What will be the output of the following C code?

#include <stdio.h>
void main()
{
    int x = 0;
    int *ptr = &x
    printf("%p\n", ptr);
    ptr++;
    printf("%p\n ", ptr);
}

What does argc and argv indicate in command-line arguments?(Assuming: int main(int argc, char *argv[]) )

What are the applications of a multidimensional array?

What is the second argument in command line arguments?

What is the index of the last argument in command line arguments?

What makes the following declaration denote?

int **ptr;

What will be the output of the following C code?

#include <stdio.h>
int main()
{
    foo(ary);
}
void foo(int **ary)
{
    int i = 10, k = 20, j = 30;
    int *ary[2];
    ary[0] = &i
    ary[1] = &j
    printf("%d\n", ary[0][1]);
}

What will be the output of the following C code?

#include <stdio.h>
int main()
{
    char str[] = "hello, world";
    str[5] = '.';
    printf("%s\n", str);
    return 0;
}

What will be the output of the following C code?

#include <stdio.h>
int main()
{
    int i = 10;
    int *const p = &i
    foo(&p);
    printf("%d\n", *p);
}
void foo(int **p)
{
    int j = 11;
    *p = &j
    printf("%d\n", **p);
}