C Program find Output code snippet SET - 1


What will be the output of the program?
#include<stdio.h>
int main()
{
    int x=1, y=1;
    for(; y; printf("%d %d\n", x, y))
    {
        y = x++ <= 5;
    }
    printf("\n");
    return 0;
}
A.
2 1
3 1
4 1
5 1
6 1
7 0
B.
2 1
3 1
4 1
5 1
6 1
C.
2 1
3 1
4 1
5 1
D.
2 2
3 3
4 4
5 5

2.
Which of the following is the correct order of evaluation for the below expression?
z = x + y * z / 4 % 2 - 1
A.
* / % + - =
B.
= * / % + -
C.
/ * % - + =
D.
* % / - + =

3.
Which of the following range is a valid long double ?
A.
3.4E-4932 to 1.1E+4932
B.
3.4E-4932 to 3.4E+4932
C.
1.1E-4932 to 1.1E+4932
D.
1.7E-4932 to 1.7E+4932

4.
Will the printf() statement print the same values for any values of a?
#include<stdio.h>
int main()
{
    float a;
    scanf("%f", &a);
    printf("%f\n", a+a+a);
    printf("%f\n", 3*a);
    return 0;
}
A.
Yes
B.
No

5.
What will be the output of the program?
#include<stdio.h>
#include<stdlib.h>

int main()
{
    int i=0;
    i++;
    if(i<=5)
    {
        printf("KIIT");
        exit(1);
        main();
    }
    return 0;
}
A.
Prints "KIIT" 5 times
B.
Function main() doesn't calls itself
C.
Infinite loop
D.
Prints "KIIT"

6.
What will be the output of the program ?
#include<stdio.h>

int main()
{
    int i, a[] = {2, 4, 6, 8, 10};
    change(a, 5);
    for(i=0; i<=4; i++)
        printf("%d, ", a[i]);
    return 0;
}
void change(int *b, int n)
{
    int i;
    for(i=0; i<n; i++)
        *(b+1) = *(b+i)+5;
}
A.
7, 9, 11, 13, 15
B.
2, 15, 6, 8, 10
C.
2 4 6 8 10
D.
3, 1, -1, -3, -5

7.
What will be the output of the program if the array begins 1200 in memory?
#include<stdio.h>

int main()
{
    int arr[]={2, 3, 4, 1, 6};
    printf("%u, %u, %u\n", arr, &arr[0], &arr);
    return 0;
}
A.
1200, 1202, 1204
B.
1200, 1200, 1200
C.
1200, 1204, 1208
D.
1200, 1202, 1200

8.
Which of the following is correct way to define the function fun() in the below program?
#include<stdio.h>

int main()
{
    int a[3][4];
    fun(a);
    return 0;
}
A.
void fun(int p[][4])
{
}
B.
void fun(int *p[4])
{
}
C.
void fun(int *p[][4])
{
}
D.
void fun(int *p[3][4])
{
}

9.
What will be the output of the program ?
#include<stdio.h>

int main()
{
    printf(5+"Interview\n");
    return 0;
}
A.
Error
B.
Interview
C.
view
D.
None of above

10.
What will be the output of the program ?
#include<stdio.h>

int main()
{
    enum status {pass, fail, absent};
    enum status stud1, stud2, stud3;
    stud1 = pass;
    stud2 = absent;
    stud3 = fail;
    printf("%d %d %d\n", stud1, stud2, stud3);
    return 0;
}
A.
0, 1, 2
B.
1, 2, 3
C.
0, 2, 1
D.
1, 3, 2

11.
Point out the error in the program?
struct emp
{
    int ecode;
    struct emp e;
};
A.
Error: in structure declaration
B.
Linker Error
C.
No Error
D.
None of above

12.
What will be the output of the program ?
#include<stdio.h>

int main()
{
    FILE *ptr;
    char i;
    ptr = fopen("myfile.c", "r");
    while((i=fgetc(ptr))!=NULL)
        printf("%c", i);
    return 0;
}
A.
Print the contents of file "myfile.c"
B.
Print the contents of file "myfile.c" upto NULL character
C.
Infinite loop
D.
Error in program

13.
While calling the fprintf() function in the format string conversion specifier %s can be used to write a character string in capital letters.
A.
True
B.
False

14.
The maximum combined length of the command-line arguments including the spaces between adjacent arguments is
A.
128 characters
B.
256 characters
C.
67 characters
D.
It may vary from one operating system to another

15.
Which of the following statements are correct about the program?
#include<stdio.h>
char *fun(unsigned int num, int base);

int main()
{
    char *s;
    s=fun(128, 2);
    s=fun(128, 16);
    printf("%s\n",s);
    return 0;
}
char *fun(unsigned int num, int base)
{
    static char buff[33];
    char *ptr = &buff[sizeof(buff)-1];
    *ptr = '\0';
    do
    {
        *--ptr = "0123456789abcdef"[num %base];
        num /=base;
    }while(num!=0);
    return ptr;
}
A.
It converts a number to a given base.
B.
It converts a number to its equivalent binary.
C.
It converts a number to its equivalent hexadecimal.
D.
It converts a number to its equivalent octal.

16.
What will be the output of the program?
#include<stdio.h>

int main()
{
    const c = -11;
    const int d = 34;
    printf("%d, %d\n", c, d);
    return 0;
}
A.
Error
B.
-11, 34
C.
11, 34
D.
None of these

17.
Point out the correct statement will let you access the elements of the array using 'p' in the following program?
#include<stdio.h>
#include<stdlib.h>

int main()
{
    int i, j;
    int(*p)[3];
    p = (int(*)[3])malloc(3*sizeof(*p));
    return 0;
}
A.
for(i=0; i<3; i++)
{
    for(j=0; j<3; j++)
        printf("%d", p[i+j]);
}
B.
for(i=0; i<3; i++)
    printf("%d", p[i]);
C.
for(i=0; i<3; i++)
{
    for(j=0; j<3; j++)
        printf("%d", p[i][j]);
}
D.
for(j=0; j<3; j++)
    printf("%d", p[i][j]);

18.
What do the following declaration signify?
char *arr[10];
A.
arr is a array of 10 character pointers.
B.
arr is a array of function pointer.
C.
arr is a array of characters.
D.
arr is a pointer to array of characters.

19.
Point out the error in the following program.
#include<stdio.h>
#include<string.h>

int main()
{
    char str1[] = "Learn through IndiaBIX\0.com",  str2[120];
    char *p;
    p = (char*) memccpy(str2, str1, 'i', strlen(str1));
    *p = '\0';
    printf("%s", str2);
    return 0;
}
A.
Error: in memccpy statement
B.
Error: invalid pointer conversion
C.
Error: invalid variable declaration
D.
No error and prints "Learn through Indi"

20.
Point out the error in the following program.
#include<stdio.h>

int main()
{
    char str[] = "IndiaBIX";
    printf("%.#s %2s", str, str);
    return 0;
}
A.
Error: in Array declaration
B.
Error: printf statement
C.
Error: unspecified character in printf
D.
No error
 

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