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Welcome to the Pointers and Arrays in C MCQs Page

Dive deep into the fascinating world of Pointers and Arrays in C with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Pointers and Arrays in C, a crucial aspect of C Programming. In this section, you will encounter a diverse range of MCQs that cover various aspects of Pointers and Arrays in C, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within C Programming.

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Pointers and Arrays in C MCQs | Page 35 of 53

Q341.
Which of the statements is correct about the program?
#include<stdio.h>

int main()
{
    int i=10;
    int *j=&i;
    return 0;
}
Discuss
Answer: (c).j is a pointer to an int and stores address of i
Q342.
Which of the statements is correct about the program?
#include<stdio.h>

int main()
{
    float a=3.14;
    char *j;
    j = (char*)&a;
    printf("%d\n", *j);
    return 0;
}
Discuss
Answer: (a).It prints ASCII value of the binary number present in the first byte of a float variable a.
Q343.
In the following program add a statement in the function fun() such that address of a gets stored in j?
#include<stdio.h>
int main()
{
    int *j;
    void fun(int**);
    fun(&j;);
    return 0;
}
void fun(int **k)
{
    int a=10;
    /* Add a statement here */
}
Discuss
Answer: (c).*k=&a
Discuss
Answer: (b).k is a pointer to a pointer to a pointer to a pointer to a char
Q345.
Which of the statements is correct about the program?
#include<stdio.h>

int main()
{
    int arr[3][3] = {1, 2, 3, 4};
    printf("%d\n", *(*(*(arr))));
    return 0;
}
Discuss
Answer: (d).Error: Invalid indirection
Q346.
Which statement will you add to the following program to ensure that the program outputs "CompSciBits" on execution?
#include<stdio.h>

int main()
{
    char s[] = "CompSciBits";
    char t[25];
    char *ps, *pt;
    ps = s;
    pt = t;
    while(*ps)
        *pt++ = *ps++;

    /* Add a statement here */
    printf("%s\n", t);
    return 0;
}
Discuss
Answer: (d).*pt='\0';
Q347.
In the following program add a statement in the function fact() such that the factorial gets stored in j.
#include<stdio.h>
void fact(int*);

int main()
{
    int i=5;
    fact(&i;);
    printf("%d\n", i);
    return 0;
}
void fact(int *j)
{
    static int s=1;
    if(*j!=0)
    {
        s = s**j;
        *j = *j-1;
        fact(j);
        /* Add a statement here */
    }
}
Discuss
Answer: (b).*j=s;
Q348.
In C, if you pass an array as an argument to a function, what actually gets passed?
Discuss
Answer: (c).Base address of the array
Q349.
What will be the output of the program ?
#include<stdio.h>

int main()
{
    int a[5] = {5, 1, 15, 20, 25};
    int i, j, m;
    i = ++a[1];
    j = a[1]++;
    m = a[i++];
    printf("%d, %d, %d", i, j, m);
    return 0;
}
Discuss
Answer: (c).3, 2, 15
Q350.
What will be the output of the program ?
#include<stdio.h>

int main()
{
    static int a[2][2] = {1, 2, 3, 4};
    int i, j;
    static int *p[] = {(int*)a, (int*)a+1, (int*)a+2};
    for(i=0; i<2; i++)
    {
        for(j=0; j<2; j++)
        {
            printf("%d, %d, %d, %d\n", *(*(p+i)+j), *(*(j+p)+i), 
                                    *(*(i+p)+j), *(*(p+j)+i));
        }
    }
    return 0;
}
Discuss
Answer: (c).1, 1, 1, 12, 2, 2, 22, 2, 2, 23, 3, 3, 3

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