Pointer - C Programming MCQ Questions and Answers

int **ptr;

#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]);
}

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

#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);
}

#include <stdio.h>
void main()
{
    char a[10][5] = {"hi", "hello", "fellows"};
    printf("%d", sizeof(a[1]));
}

int *a[] = {{1, 2, 3}, {1, 2, 3, 4}}; //- 1
int b[4][4] = {{1, 2, 3}, {1, 2, 3, 4}};//- 2

#include <stdio.h>
void first()
{
    printf("first");
}
void second()
{
    first();
}
void third()
{
    second();
}
void main()
{
    void (*ptr)();
    ptr = third;
    ptr();
}