C MCQ

MCQ

What is the output of the following code?

int a = 5, b = 10;
a = a ^ b;
b = a ^ b;
a = a ^ b;
 printf("%d %d", a, b);

5 10
10 5
0 10
10 0

What is the correct syntax for a multi-line comment in C?

/* This is a comment */
// This is a comment //
{ This is a comment }
/ This is a comment //

Which operator has the highest precedence in C?

++ (postfix)
*
==
&&

What is the output of the following code?

int x = 5;
printf("%d", x++);

5
6
4
Error

What is the output of the following code?

int i = 0;
for (i = 0; i < 5; i++) {
printf("%d ", i);
if (i == 3) {
break;
}
}

0 1 2 3
0 1 2 3 4
0 1 2 3 4 5
None of the above

What is the output of the following code?

int i = 0;
while (i < 5) {
printf("%d ", i);
i++;
}

0 1 2 3
0 1 2 3 4
0 1 2 3 4 5
None of the above

What is the output of the following code?

int i = 0;
do 
{
    printf("%d ", i);
    i++;
} while (i < 5);

0 1 2 3
0 1 2 3 4
0 1 2 3 4 5
None of the above

What is the output of the following code?

int arr[3][3] = {{1, 2, 3}, {4, 5, 6}, {7, 8, 9}};
printf("%d", arr[2][1]);

What is the output of the following code?

char str[] = "Hello World";
printf("%s", str);

Hello World
H
Error
None of the above

What is the output of the following code?

int a = 5;
int b = 10;
swap(a, b);
printf("%d %d", a, b);
void swap(int x, int y)
 {
    int temp = x;
    x = y;
    y = temp;
}

5 10
10 5
Error
None of the above

What is the output of the following code?

#include<stdio.h>
int main() 
{
  char c = 'A';
  printf("%d %c", c, c);
  return 0;
}

65 A
A 65
Error
None of the above

What is the output of this C code?

#include<stdio.h>
int main()
 {
     char c = 'A';
     printf("%d %c", c+32, c+32);
     return 0;
}

65 a
97 a
Error
None of the above

What is the output of this C code?

#include<stdio.h>
int main() {
char str[] = "hello";
printf("%d", sizeof(str));
return 0;
}

5
6
7
Error

What is the output of this C code?

#include<stdio.h>
int main() 
{
    char str[] = "hello";
    printf("%d", strlen(str));
    return 0;
}

5
6
7
Error

What is the output of this C code?

#include<stdio.h>
int main() 
{
     char str1[] = "hello";
     char str2[] = "world";
     strcpy(str1, str2);
     printf("%s", str1);
     return 0;
}

hello
world
horld
Error

What is the output of this C code?

#include<stdio.h>
int main() {
char str1[] = "hello";
char str2[] = "world";
int res = strcmp(str1, str2);
printf("%d", res);
return 0;
}

0
-1
1
Error

What is the output of this C code?

#include<stdio.h>
int main() 
{
    char str[] = "hello";
    printf("%s", str+2);
    return 0;
}

hello
lo
llo
Error

What is the output of this C code?

#include<stdio.h>
#define square(x) x*x
void main()
{
    
    int i;
    i=(64/square(4));
    printf("%d",i);
}

64
16
4
Error

What is the output of this C code?

#include<stdio.h>
int main()
{
    int x=5, y=1;
    int z=(y++)? 2: y==1 && x||y;
   printf("%d\n",--z);
    return 0;
}

What is the output of this C code?

#include<stdio.h>
int main()
{
     int a=1, b=3;
     a+=b-=a;
     printf("%d,%d",a,b);
}

3,2
4,2
4,-1
2,3

What is the output of this C code?

#include<stdio.h>
int main()
{
    enum choice
   {
       Tea=-1,Coffee,Milk
   };
   int x=Tea + Milk;
   switch (x){
   case Tea:
   printf("Choice is Tea");
   break;
   case Coffee:
   printf("Choice is Coffee");
   break;
  case Milk:
   printf("Choice is Milk");
  break;
  default:
  printf("Not in list");
  break;
}
return 0;
}

Choice is Tea
Choice is Coffee
Choice is Milk
Not in list

What is the output of this C code?

#include<stdio.h>
main()
{
   char ch;
   ch = 128;
   printf("%d\n",ch);
   return 0;
}

128
-128
0
Garbage Value

What is the output of this C code?

#include<stdio.h>
int main()
{
    int a = 10, b = 5, c = 3;
    b != !a;
    c = !!a;
    printf("%d\t%d", b, c);
}

5 1
10 10
1 10
1 1

What is the output of this C code?

#include<stdio.h>
main()
{
int i=3;
int j;
j=sizeof(++i + ++i);
printf("i=%d j=%d", i, j);
}

i=4 j=2
i=3 j=2
i=3 j=4
c=5 d=5

What is the output of this C code?

#include<stdio.h>
int main()
{
   int a, b, c, d;
   a=3;
   b=5;
   c=a,b;
  d=(a,b);
  printf("c=%d",c);
  printf("d=%d",d);
}

c=3 d=3
c=5 d=3
c=3 d=5
c=5 d=5

What is the output of this C code?

  int  main()
    {
        if (~0 == 1)
             printf("EQUAL");
        else
             printf("NOT EQUAL");
       return 0;
    }

EQUAL
NOT EQUAL
Compile time error
Undefined

What is the output of this C code?

#include<stdio.h>
main()
{
   int i=0;
   for(i=0;i<20;i++)
   {
       switch(i)
       {
            case 0:i+=5;
            case 1:i+=2;
            case 5:i+=5;
            default:i+=4;
            break;
      }
      printf("%d, ",i);
  }
  return 0;
}

0,5,9,13,17,
5,9,13,17,
12,17,22,
16,21,

What is the output of this C code?

#include<stdio.h>
int main ()
{
   int i=5;
   while(i--)
   {
        int i=11;
        i--;
        printf ("%d ",i);
   }
   return 0;
}

10 10 10 10 10
5 4 3 2 1
10 9 8 7 6
Infinite loop

What is the output of this C code?

#include<stdio.h>
#include<setjmp.h>
static jmp_buf buf;
int main()
{
      volatile int b;
       b=3;
       if (setjmp(buf)!=0)
       {
            printf("%d", b);
            return(0);
       }
       b=5;
       longjmp(buf,1);
}

Which of the following statement is an infinite loop?

(i) while (1) {}
(ii) while (15) {}
(iii) while (“infinite”) {}
(iv) for (;;) {}

Expression (i)
Expression (ii)
Expression (iii)
All the above expressions.

Which one of the following correct with respect to size of the datatypes?

char > int > float
All the statements
char < int < double
double > char > int

Statement 1: Extern variable can be declared multiple times but can be defined only once.
Statement 2: usage of ‘&’ operator on the register variable is restricted.?

Statement 1 is true, statement 2 is false.
Statement 1 is false, statement 2 is true
Both statements 1 & 2 are true.
Both statements 1 & 2 are false.

What is the output of this C code?

#include <stdio.h>
#define y *
int main()
{
      int x=5,z=3;
      printf("%d", x y z);
      return 0;
}

5 3
5 y 3
1 5
0

What is the output of this C code?

#include <stdio.h>
int main()
{
       static int num[3]={[0]=5,[2]=7};
       printf("%d ",num[1]);
       return 0;
}

0
5
7
Garbage Value

What is the output of this C code?

#include <stdio.h>
main()
{
    #ifndef hello
    printf("hello");
    #endif
    printf("world");

}

hello
world
helloworld
null

What is the output of this C code?

#include <stdio.h>
main()
{
       int A[] ={2,4,6,8,10};
      1[A]=A[(&A[4]-&A[0])];
       printf("%d",*(1+A));
}

What is the output of this C code?

#include <stdio.h>
main()
{
    #define a 5
    printf("%d",a++);
}

5
6
0
Error

What is the output of this C code?

#include <stdio.h>
main()
{
       int A[10] ={2,4,6,8,10,12,14,16};
       printf("%d",(A+2)[3]);
}

What is the output of this C code?

#include <stdio.h>
int main(int argc, char *argv[])
{
printf("%s\n",argv[0]);
return 0;
}

0
1
Compilation error
Executable file name.

What is the output of this C code?

#include <stdio.h>
int main(int argc, char *argv[])
{
       if (argv[argc])
              printf("Hello");
              printf("World");
       return 0;
}

Hello
World
HelloWorld
Null

What is the output of this C code?

#include <stdio.h>
int main()
{
    union a
    {
          char ch[2];
          char rh[2];
     };
     union a key;
     key.ch[0]=5;
     key.ch[1]=7;
     printf("key.rh[1] = %d ",key.rh[1]);
     return 0;
}

key.rh[1] = 5
key.rh[1] = 7
key.rh[1] = 0
key.rh[1] = Garbage Value.

What is the output of this C code?

#include <stdio.h>
int main()
{
     union a
     {
          short i;
          char j[2];
     };
     union a key;
     key.i=514;

     printf("%d, ",key.j[0]);
     printf("%d ",key.j[1]);
     return 0;
}

0, 0
2, 0
0, 2
2, 2

What is the output of this C code?

#include <stdio.h>
int main()
{
char x;
x='A';
printf("%d",x);
return 0;
}

Which of the following expression will swap the values in the variable a, b?

a=a-b; b=a+b; a=b-a;
a=a+b; b=a-b; a=a-b;
a=a*b; b=a/b; a=a/b;
All the above expressions.

What is the output of this C code?

#include <stdio.h>
#include <string.h>
int main ()
{
      int i = 5;
     switch(i)
    {
     static int i;
     case 3:
        i=i+i;
     case 4:
        i=i+i;
      case 5:
        i=i+i;
     default:
        i=i+i;
        printf("%d ",i);
   }
  printf("%d ",i);
  return 0;
}

36 5
0 5
18 18
5 5

What is the output of this C code?

#include <stdio.h>
main ()
{
  int a=2, b=3, c=5;
  a<<=c>b>a^a<c<b;
  printf("%d",a);
}

What is the output of this C code?

#include <stdio.h>
main ()
{
      int a=2;
      if(++a^++a&&(a^a)||++a)
      printf("%d",a);
}

What is the output of this C code?

#include <stdio.h>
main ()
{
    while(1)
    {
          int i = 0;
          while(i<10)
         {
               ++i;
               for(;;)
              {
                      if(++i<5)
                     continue;
                     break;
              }
       }
       printf("%d",i);
       break;
    }
}

10
11
9
program run infinite.

What is the output of this C code?

#include <stdio.h>
int main ()
{
    char a[]="abcde";
    char* p=a;
    p++;
    p++;
    p[2]='z';
    printf("%s",p);
    return 0;
}

abcde
abzde
zde
cdz

What is the output of this C code?

#include <stdio.h>
int main()
{
    int x=15,y=3;
    printf("%d\n", x+(~y)+1);
    return 0;
}

What is the output of this statement?

printf("%d",3^2?~0+1?5:1:12);

What is the output of this C code?

#include <stdio.h>
int main()
{
    char a[] = "%d";
    int b=12;
    a[1] = 88;
    printf(a,b);
    return 0;
}

What is the output of this C code?

#include <stdio.h>
int main()
{
    char a=128;
    char b=a-1;
    printf("%d",a-b);
    return 0;
}

0
1
255
-255

What is the output of this C code?

#include <stdio.h>
void func()
 {
      int a[] = {1, 2, 3, 4, 5};
      int sum = 0;
      for(int i = 0; i < 5; i++) 
      {
            if(i % 2 == 0)
                  sum += *(a + i);
            else
                  sum -= *(a + i);
      }
      printf("%d", sum);
}
int main() 
{
    func();
    return 0;
}

What is the output of the program

#include <stdio.h>
int main()
{
    int i = 3;
    printf("%d", (++i)++);
    return 0;
}

3
4
5
Compile Time Error

What is the output of the program

#include <stdio.h>
#if X == 3
    #define Y 3
#else
    #define Y 5
#endif
 
int main()
{
    printf("%d", Y);
    return 0;
}

3
5
1
Compile Time Error

Which of the following is true about return type of functions in C?

Functions can return any type
Functions can return any type except array and functions
Functions can return any type except array, functions and union
Functions can return any type except array, functions, function pointer and union

Assume that objects of the type short, float and long occupy 2 bytes, 4 bytes and 8 bytes, respectively. The memory requirement for variable t, ignoring alignment considerations, is

struct  stu
{ 
    short s[5];
    union 
    { 
         float y; 
         long z; 
    }u; 
} t;

Which of the following is not a storage class specifier in C?

auto
register
Extern
Volatile

Which of the following is not a logical operator?

Which file is generated after pre-processing of a C program?

What does the following C statement mean?

scanf("%4s", str);

Reads exactly 4 letters from console
Reads maximum of 4 letters from console
Compile error
Reads a string str in multiples of 4

Assume that a character takes 1 byte. Output of following program?

#include <stdio.h>
int main()
{
       char str[20] = "SkillLyncQuiz";
       printf ("%d", sizeof(str));
       return 0;
}

1
20
21 to store \0
25

What is the output of the following Code?

#include <stdio.h> 
int main()
{
    unsigned int i = 65000;
    while (i++ != 0);
    printf("%d", i);
    return 0;
}

65535
1
-65534
infinite loop

Which of the following is true for variable names in C?

They can contain alphanumeric characters as well as special characters
It is not an error to declare a variable to be one of the keywords(like goto, static)
Variable names cannot start with a digit
Variable can be of any length

Which one of the following is a loop construct that will always be executed once?

while
for
do ..while
switch

A global variable is declared __________.

outside the function
Inside of the function
With the function
Anywhere in the program

What is the result after execution of the following code if a is 10, b is 5, and c is 10?

#include<stdio.h> 
int main() 
{ 
    int a=10,b=5,c=10; 
    if ((a > b) && (a <= c))           
          a = a + 1;   
    else          
          c = c+1; 
    printf("%d %d",a,c); 
    return 0;
}

a = 10, c = 11
a = 11, c = 10
a = 11, c = 11
a = 10, c = 10

What is an example of iteration in C?

while
for
do ..while
All of the Above

In the C language, the constant is defined _______. ?

Before main()
After main()
Anywhere, but starting on a new line
None of the these.

What is the output of this C code?

#include <stdio.h>
int main() 
{ 
   int j = 1, num1 = 4;   
   while (++j <= 10)   
   {     
       num1++;  
   }   
   printf("%d",num1); 
   return 0;
}

A machine in which the least significant bit is stored in the smallest address is __________

Big endian machine
Little endian machine
Short endian machine
None of the above

What is the output of this C code?

#include <stdio.h>
#define a 5 
Int main() 
{ 
    printf("%d",a++); 
   return 0; 
}

5
6
error
None of the above

What is the output of this C code?

#include <stdio.h>
int main() 
{ 
              int h[4]={5,6,7,8}; 
              int *a=h; 
              printf("%d ",*a); 
}

5
6
error
None of the above

Which of the following expression will swap the values in the variable a, b?

a=a-b; b=a+b; a=b-a;
a=a+b; b=a-b; a=a-b;
a=a*b; b=a/b; a=a/b;
All the above

What is the output of the following Code?

#include <stdio.h>
int main() 
{ 
      int i=4,z=12; 
      if(i=5 || z>50) 
           printf("hello"); 
     else 
           printf("hi"); 
}

hello
hi
hello hi
None of the above

What is the output of the following Code?

#include <stdio.h>
int main() 
{ 
      int k,num=30; 
      k=(num>5?(num<=10?100:200):500); 
      printf("%d %d",num,k); 
      return 0;
}

30,100
200,200
30,200
None of the above

What is the output of the following Code?

int i=2; 
if(i) 
    printf("1"); 
else if(i==2) 
    printf("2"); 
else 
   printf("others");

1
2
other
None of the above

A “switch” statement is used to

Switch between functions in a program
Switch from one variable to another variable
To choose from multiple possibilities which may arise due to different values of a single variable
All of above

What is the output of the following Code?

int a=0; 
if(a=0) 
     printf ("a is zero"); 
else  
     printf ("a is not zero");

a is zero
a is not zero
error
None of the above

What is the output of the following Code?

main() 
{ 
    int i=1; 
    switch(i) 
    { 
        default:printf("zero"); 
        case 1: printf("one"); 
        break; 
        case 2:printf("two"); 
        break; 
        case 3: printf("three"); 
        break; 
    } 
}

zero
one
two
three

What is the output of the following Code?

int main() 
{ 
    int i=6; 
    switch(i) 
    { 
        default:printf("zero"); 
        case 1: printf("one"); 
        break; 
        case 2:printf("two"); 
        break; 
        case 3: printf("three"); 
        break; 
    } 
    return 0;
}

zero
one
both the above statements
three

What is the output of the following Code?

 #include <stdio.h>
       int main() 
{ 
      int n = 0; 
      if (n == 1) 
           if (n >= 0) 
                  printf("True...\n"); 
           else 
                 printf("False...\n"); 
}

True
false
error
prints nothing

Which of the following cannot be checked in a switch – case statement?

int
float
char
enum

What is the output of the following Code?

 #include <stdio.h>
        int main() 
    { 
        float n = 1.2; 
        switch (n) 
        { 
        case 1.0: 
            printf("Option: First\n"); 
            break; 
        default: 
            printf("Option: Default\n"); 
        } 
    }

Default
Run time error
Compile time error
First

What is the output of the following Code?

 #include <stdio.h>
       int  main() 
    { 
        int p = 6; 
        if (p < 2); 
            printf("Hey..."); 
        return 0;
  
    }

Hey
Run time error
Compile time error
prints nothing

What is the output of the following Code?

 #include <stdio.h>
    int main() 
    { 
        int n; 
       n=1; 
        switch (n, n + 1) 
        { 
            case 1: 
                        printf("1\n"); 
                        break; 
           case 2: 
                        printf("2"); 
                        break; 
        } 
     return 0;
    }

1
Run time error
Compile time error
2

What is the output of the following Code?

 #include <stdio.h>
   int main() 
    { 
        int n = 5; 
        if (n > 1) 
            printf("Inside if block executed...\n"); 
        else if (n == 5) 
            printf("Inside else if block executed...\n"); 
        return 0;
    }

Inside if block executed
Inside else if block executed
None of the statement
5

What is the output of the following Code?

 #include <stdio.h>
 #define max(p) p 
   int main() 
    { 
      int n = 1; 
      switch (n) 
    { 
    case max(2): 
    case max(1): 
   break; 
        } 
    }

1
2
Right
Wrong

What is the result of 64&&32?

What is the value of a?

int a = 10 + 4.867;

10
4.867
14.867
14

What number will z in the sample code given below?

int z, x = 5, y = -10, a = 4, b = 2; 
z = x++ - --y*b/a;

Given b = 110 and c = 20, what is the value of ‘a’ ,b,c after execution of the expression a = b = c*=5?

110,100,100
100,100,100
100,110,100
100,100,100

Determine Output:

int main() 
{ 
      int i = 0, j = 1, k = 2, m; 
      m = i++ || j++ || k++; 
      printf("%d %d %d %d", m, i, j, k);
      return 0; 
}

3 1 2 2
3 1 1 2
1 1 2 2
1 1 2 1

Determine Output:

int  main()  
{ 
      int c = - ( -2); 
      printf("c = %d", c); 
      return 0;
}

0
-2
2
Garbage value

Determine Output:

int main() 
{ 
      int i = 10; 
      i = !i>14; 
     printf("i = %d", i); 
     return 0;
}

0
10
1
Garbage value

What is the value of k?

int a=3,b=2,x=5,y=4; 
int k=5*b*b*x-3*a*y*y-8*b*b*x+10*a*y;

45
-125
82
-84

Evaluate the expression

2*3/4+4/4+8-2+5/8

What is the output of the following Code?

int x=4,y,z; 
y=--x; 
z=x--; 
printf("%d\t%d\t%d",x,y,z);

1 2 3
1 1 3
2 3 3
1 1 1

What is the output of the following Code?

int main() 
{ 
       int x=4,y=0,z=0; 
       y=x-- -y; 
       printf("%d\t%d\t%d",x++,--y,z); 
       return 0;
}

1 2 3
1 1 3
3 3 0
1 1 1

Evaluate x=2%2+2*2-2/2

Evaluate x=7+3*6/2-1

Dynamically allocated memories are allocated in which part of a memory?

Heap
Stack
RAM
Register

What is the correct syntax to declare a function foo() which receives an array of structure in function()?

None
void foo(struct var)
void foo(struct *var[])
void foo(struct *var);

The size of a union is determined by the size of the __________

First member in the union
Last member in the union
Sum of the sizes of all members
Biggest member in the union

A user defined data type, which is used to assign names to integral constants is called ___________

union
array
enum
structure

Local variables are stored in an area called ___________

Stack
RAM
ROM
Heap

What is the return type of the fopen() function in C?

Stack
RAM
pointer variable
Pointer to FILE object

What is the output of the program?

#include <stdio.h> 
int main() 
{ 
      int x=4,y=5; 
      printf("%d",x||y?x:y); 
}

What is the output of the program?

#include <stdio.h> 
int x; 
int main() 
{ 
     printf("hello"); 
     while(x) 
          printf("world"); 
     return 0;
}

hello
hello world
hello. Infinite times world priniting
world..world…

What is the output of the program?

#include <stdio.h> 
  int main() 
{ 
      int x=5,y=-6; 
      printf("%d",(x&&y));
      return 0;  
}

What is the output of the program?

#include <stdio.h> 
 int main() 
 { 
        int a = 3, b = 5;          
        int t = a;          
        a = b;          
        b = t;          
       printf("%d %d", a, b);         
       return 0; 
}

What is the output of the program?

#include <stdio.h> 
int main() 
{ 
    static int var=5; 
    printf("%d",var--); 
    if(var) 
    main(); 
    return 0;
}

compile error
run time error
5 4 3 2 1
4 3 2 1 0

What is the output of the program?

#include <stdio.h> 
int main() 
{ 
     printf("%x",-1<<4); 
     return 0;
}

08
80
f0f0 fff8
ffff fff0

What is the output of the following Code?

#include <stdio.h> 
int main() 
{ 
    int i=5; 
    printf("%d%d%d%d%d",i++,i--,++i,--i,i); 
    return 0;
}

45323
43544
44555
45555

What is the output of the following Code?

#include <stdio.h> 
int main()
{
    int i=200,j=300;
    printf("%d %d");
    return 0;
}

200 300
Garbage values
Run time error
syntax error

How to declare double pointer in c

int *val
Int &&val
Int **val
Int &val

What is the output of the following code?

int a = 5, b = 10;
printf("%d", a + b);

10
15
20
Error

What is the output of the following code?

int arr[] = {1, 2, 3, 4, 5};
int *ptr = arr;
printf("%d", *ptr);

1
2
Error
None of the above

What is the output of the following code?

int arr[] = {1, 2, 3, 4, 5};
int *ptr = arr;
printf("%d", *(ptr+2));

What is the output of the following code?

int arr[] = {1, 2, 3, 4, 5};
int *ptr = arr;
ptr += 2;
printf("%d", *ptr);

What is the output of the following code?

int arr[] = {1, 2, 3, 4, 5};
int *ptr = &arr[2];
printf("%d", *ptr);

What is the output of the following code?

int arr[] = {1, 2, 3, 4, 5};
int *ptr = &arr[2];
*ptr = 10;
printf("%d %d", arr[2], arr[3]);

3 4
10 4
3 10
10 5

What is the output of the following code?

int a = 5;
int *p = &a;
*p = 10;
printf("%d %d", a, *p);

5 5
5 10
10 10
Error

What is the output of the following code?

int a = 5;
int b = 10;
swap(&a, &b);
printf("%d %d", a, b);
void swap(int *x, int *y) 
{
     int temp = *x;
     *x = *y;
     *y = temp;
}

5 10
10 5
Error
None of the above

What is the output of the following code?

#include <stdio.h>
int main()
 {
        int a = 5, b = 10;
        int *p1 = &a, *p2 = &b;
        int *temp;
        temp = p1;
        p1 = p2;
        p2 = temp;A) 5 10
        printf("%d %d", *p1, *p2);
        return 0;
}

5 10
10 5
Error
None of the above

What is the output of the following code?

#include <stdio.h>
int main
 {
       int a = 5;
       int *p = &a;
       printf("%d %u", a, p);
       return 0;
}

5 random value
5 address of a
Error
None of the above

What is the output of the following code?

#include <stdio.h>
int main() 
{
      int arr[3] = {1, 2, 3};
      int *p = arr;
      printf("%d %d", *p, *(p+1));
      return 0;
}

1 2
2 3
Error
None of the above

What is the output of the following code?

#include <stdio.h>
int main() 
{
      int arr[3] = {1, 2, 3};
      int *p = arr;
      p++;
      printf("%d", *p);
      return 0;
}

1
2
3
Error

What is the output of the following code?

#include <stdio.h>
int main()
 {
        int arr[3] = {1, 2, 3};
        int *p = arr;
       *p = 10;
        printf("%d %d %d", *p, *(p+1), *(p+2));
        return 0;
}

10 2 3
1 10 3
1 2 10
Error

What is the output of the following code?

#include <stdio.h>
int main()
 {
      int arr[3] = {1, 2, 3};
      int *p = arr;
     *(p+1) = 10;
      printf("%d %d %d", *p, *(p+1), *(p+2));
     return 0;
}

1 10 3
1 2 3
Error
None of the above

What is the output of the following code?

#include <stdio.h>
int main() 
{
       int arr[3] = {1, 2, 3};
       int *p = arr+2;
       printf("%d", *p);
       return 0;
}

1
2
3
Error

What is the output of the following code?

#include <stdio.h>
int main() 
{
      int arr[3] = {1, 2, 3};
      int *p = arr+2;
      p--;
      printf("%d", *p);
      return 0;
}

1
2
3
Error

What is the output of the following code?

#include <stdio.h>
int main() 
{
      int arr[3][2] = {{1, 2}, {3, 4}, {5, 6}};
      printf("%d", *(arr[1]+1));
      return 0;
}

What is the output of the following code?

#include <stdio.h>
int main() 
{
         int arr[3][2] = {{1, 2}, {3, 4}, {5, 6}};
         printf("%d", ((arr+2)+1));
         return 0;
}

What is the output of the following code?

#include <stdio.h>
int main() 
{
         int arr[3][2] = {{1, 2}, {3, 4}, {5, 6}};
         printf("%d", (*(arr+1))[1]);
         return 0;
}

What is the output of the following code?

#include <stdio.h>
int main() 
{
         int arr[3][2] = {{1, 2}, {3, 4}, {5, 6}};
         printf("%d", (*(arr+2))[0]);
         return 0;
}

1
3
5
Error

What is the output of the following code?

#include <stdio.h>
int main() 
{
             int arr[3][2] = {{1, 2}, {3, 4}, {5, 6}};
             int (*p)[2];
             p = arr+1;
             printf("%d", ((p+1)+1));
             return 0;
}

What is the output of the following code?

#include <stdio.h>
int main() 
{
      int arr[] = {10, 20, 30};
      int *p;
     p = arr+1;
     printf("%d", *p);
     return 0;
}

10
20
30
Error

What is the output of the following code?

#include <stdio.h>
int main()
 {
       int arr[] = {10, 20, 30};
       printf("%d", *(arr+2));
       return 0;
}

10
20
30
Error

What is the output of the following code?

#include <stdio.h>
int main()
 {
      int arr[] = {10, 20, 30};
      printf("%d", *(arr+3));
      return 0;
}

10
20
30
Error

What is the output of the following code?

#include <stdio.h>
int main()
{
      int h[4]={5,6,7,8};
      int *a=h;
      printf("%d ",*a);
     return 0;
}

4
5
0
Garbage Value

What is the output of the following code?

#include <stdio.h>
int arr[] = {1, 2, 3, 4, 5};
int *ptr = arr;
ptr++;
printf("%d", *ptr);

1
2
Error
None of the above

What is the output of the following code?

#include <stdio.h>
int main()
{
      int arr[] = {10, 20, 30};
      int *p = arr;
      printf("%d", p[1]);
      return 0;
}

10
20
30
Error

What is the output of the following code?

#include <stdio.h>
  int main() 
{
      int arr[] = {10, 20, 30};
      int *p = arr+2;
      printf("%d", p[-1]);
      return 0;
}

10
20
30
Error

What is the output of the following code?

#include <stdio.h>
  int main() 
{
          int arr[] = {10, 20, 30};
          int *p = arr+1;
          printf("%d", ++*p);
          return 0;
}

21
22
23
Error

What is the correct syntax to declare a function foo() which receives an array of structure ?

void foo(struct *var);
void foo(struct *var[]);
void foo(struct var)
None

What is the output of the following C code snippet?

#include <stdio.h> 
int main() 
{
      char str[] = "hello";
      printf("%c", *(str+3));
      return 0;
}

What is the output of the following C code snippet?

#include <stdio.h> 
int main() {
    int x = 5, y = 10;
    int *ptr1, *ptr2;
    ptr1 = &x;
    ptr2 = &y;
    *ptr1 = *ptr1 + *ptr2;
    *ptr2 = *ptr1 - *ptr2;
    printf("%d %d", *ptr1, *ptr2);
    return 0;
}

10 5
15 5
10 15
15 10

What is the output of the following C code snippet?

#include <stdio.h> 
void swap(int *x, int *y) 
{
    int temp = *x;
    *x = *y;
    *y = temp;
}
int main() 
{
    int a = 5, b = 10;
    swap(&a, &b);
    printf("%d %d", a, b);
    return 0;
}

5 10
10 5
0
10 15

What is the output of the following C code snippet?

#include <stdio.h> 
int main() 
{
    int x = 5;
    int *ptr1 = &x;
    int **ptr2 = &ptr1;
    printf("%d", **ptr2);
    return 0;
}

5
1
0
Error

What is the output of the following C code snippet?

#include <stdio.h> 
int main() 
{
    int arr[5] = {1, 2, 3, 4, 5};
    int *ptr = arr + 2;
    printf("%d", *ptr);
    return 0;
}

What is the output of the following C code snippet?

#include <stdio.h> 
int main() 
{
    char str1[] = "hello";
    char *str2 = str1;
    printf("%c", *(str2+1));
    return 0;
}

What is the output of the following C code snippet?

#include <stdio.h> 
int main() 
{
    int arr[] = {1, 2, 3, 4, 5};
    int *ptr = arr;
    printf("%d", *(ptr+3));
    return 0;
}

What is the output of the following C code snippet?

#include <stdio.h> 
int main() 
{
    int arr[] = {1, 2, 3, 4, 5};
    int *ptr = arr;
    printf("%d", ptr[2]);
    return 0;
}

What is the output of the following C code snippet?

#include <stdio.h> 
int main() {
    int a = 5, b = 10;
    int *p1, *p2;
    p1 = &a;
    p2 = &b;
    p1 = p2;
    *p1 = 15;
    printf("%d %d", a, b);
    return 0;
}

5 10
10 5
15 10
10 15

What is the output of the following C code snippet?

#include <stdio.h> 
int main()
 {
    char str[] = "hello";
    char *p = str;
    while (*p != '\0') 
    {
        printf("%c", *p);
        p++;
    }
    return 0;
}

hello
h
llo
olleh

What is the output of the following C code snippet?

#include <stdio.h> 
int main() 
{
    int arr[] = {1, 2, 3, 4, 5};
    int *p = arr + 3;
    printf("%d", *(p-2));
    return 0;
}

What is the output of the following C code snippet?

#include <stdio.h> 
int main() 
{
    int arr[] = {1, 2, 3, 4, 5};
    int *p1 = arr, *p2 = arr + 3;
    printf("%d", *p2 - *p1);
    return 0;
}

What is the output of the following C code snippet?

#include <stdio.h> 
int main() 
{
    int arr[] = {1, 2, 3, 4, 5};
    int *p = arr + 2;
    printf("%d", *(p+1));
    return 0;
}

What is the output of the following C code snippet?

#include <stdio.h> 
int main() 
{
    int arr[] = {1, 2, 3, 4, 5};
    int *p = arr + 3;
    printf("%d", p[-2]);
    return 0;
}

What is the output of the following C code snippet?

#include <stdio.h> 
int main() 
{
    int a = 5, b = 10;
    int *p1, *p2;
    p1 = &a;
    p2 = &b;
    *p1 = *p2;
    *p2 = 15;
    printf("%d %d", a, b);
    return 0;
}

15 10
10 15
15 15
10 10

What is the output of the following C code snippet?

#include <stdio.h> 
int main()
 {
    int arr[] = {1, 2, 3, 4, 5};
    int **p = (int **) malloc(sizeof(int *) * 5);
    for (int i = 0; i < 5; i++) 
    {
        p[i] = &arr[i];
    }
    printf("%d", **p);
    return 0;
}

What is the output of the following C code snippet?

#include <stdio.h> 
int main()
 {
    int a = 5, b = 10;
    int *p1, **p2;
    p1 = &a;
    p2 = &p1;
    **p2 = b;
    printf("%d %d", a, b);
    return 0;
}

5 10
10 5
10 10
5 5

What is the output of the following C code snippet?

#include <stdio.h> 
int main() 
{
    int a = 5;
    int *p1, **p2;
    p1 = &a;
    p2 = &p1;
    printf("%d", *p2 == &a);
    return 0;
}

0
1
Compiler Error
Segmentation Fault

What is the output of the following C code snippet?

#include <stdio.h> 
int main() 
{
    int arr[] = {1, 2, 3, 4, 5};
    int *p = arr;
    int **pp = &p;
    printf("%d", **pp + 2);
    return 0;
}

What is the output of the following C code snippet?

#include <stdio.h> 
int main() 
{
    int arr[] = {1, 2, 3, 4, 5};
    int *p = arr;
    int **pp = &p;
    *pp += 2;
    printf("%d", **pp);
    return 0;
}

What is the output of the following C code snippet?

#include <stdio.h> 
int main() 
{
    int arr[] = {1, 2, 3, 4, 5};
    int *p = arr + 3;
    int **pp = &p;
    printf("%d", (*--*pp)++);
    printf("%d", **pp);
    return 0;
}

What is the output of the following C code snippet?

#include <stdio.h> 
struct student
{
    char name[20];
    int age;
};

int main() 
{
    struct student *ptr, s1;
    ptr = &s1;
    ptr->age = 20;
    strcpy(ptr->name, "Alex");
    printf("%s %d", s1.name, s1.age);
    return 0;
}

Alex 20
20 Alex
Compiler Error
Segmentation Fault

What is the output of the following C code snippet?

#include <stdio.h> 
struct employee 
{
    int emp_id;
    char emp_name[20];
    int age;
};

void change_age(struct employee *e, int new_age)
 {
      e->age = new_age;
}

int main() 
{
    struct employee emp1 = {1, "John", 25};
    change_age(&emp1, 30);
    printf("%d %s %d", emp1.emp_id, emp1.emp_name, emp1.age);
    return 0;
}

1 John 25
1 John 30
Compiler Error
Segmentation Fault

What is the output of the following C code snippet?

#include <stdio.h> 
struct employee
 {
    int emp_id;
    char emp_name[20];
    int age;
};

int main() 
{
    struct employee emp[] = {{1, "John", 25}, {2, "Alex", 30}};
    struct employee *ptr = emp;
    printf("%d %s %d", ptr->emp_id, ptr->emp_name, ptr->age);
    return 0;
}

1 John 25
2 Alex 30
Compiler Error
Segmentation Fault

What is the output of the following C code snippet?

#include <stdio.h> 
struct status
 {
    unsigned int error : 1;
    unsigned int warning : 2;
    unsigned int info : 3;
};

int main() 
{
    struct status s = {0, 2, 5};
    printf("%d %d %d", s.error, s.warning, s.info);
    return 0;
}

0 2 5
1 2 5
0 1 5
Compiler Error

What is the output of the following C code snippet?

#include <stdio.h> 
struct flags {
    unsigned int flag1 : 1;
    unsigned int flag2 : 1;
    unsigned int flag3 : 1;
};
int main() {
    struct flags f = {1, 0, 1};
    if (f.flag1 && !f.flag2 && f.flag3) {
        printf("True");
    } else {
        printf("False");
    }
    return 0;
}

True
False
Compiler Error
Segmentation Fault

What is the output of the following C code snippet?

#include <stdio.h> 
struct bits 
{
    unsigned int a : 5;
    unsigned int b : 5;
    unsigned int c : 5;
    unsigned int d : 5;
};
int main() 
{
    struct bits bits1 = {0x1f, 0x1f, 0x1f, 0x1f};
    printf("%d %d %d %d", bits1.a, bits1.b, bits1.c, bits1.d);
    return 0;
}

31 31 31 31
1 1 1 1
Compiler Error
Segmentation Fault

What is the output of the following C code snippet?

#include <stdio.h> 
struct 
{
    int a : 4;
    int b : 4;
} var;
int main() 
{
    var.a = 4;
    var.b = 5;
    printf("%d %d", var.a, var.b);
    return 0;
}

4 5
5 4
0 5
Compiler Error

What is the output of the following C code snippet?

#include <stdio.h> 
struct bits {
    unsigned int a : 5;
    unsigned int b : 5;
    unsigned int c : 5;
    unsigned int d : 5;
};
int main() {
    struct bits bits1 = {0x1f, 0x1f, 0x1f, 0x1f};
    bits1.a &= 0x0f;
    bits1.b &= 0x0f;
    bits1.c &= 0x0f;
    bits1.d &= 0x0f;
    printf("%d %d %d %d", bits1.a, bits1.b, bits1.c, bits1.d);
    return 0;
}

15 15 15 15
1 1 1 1
Compiler Error
Segmentation Fault

What will be the output of the above program?

#include 
int main() 
{
    char *arr[] = {"apple", "orange", "banana"};
    printf("%s", arr[1]);
    return 0;
}

apple
orange
banana
Compilation Error

What is the output of the following code?

#include 
int main() {
int a = 5;
int *p = &a;
char *q = (char *)p;
*q = 10;
printf("%d", *p);
return 0;
}

5
10
Compile error
Runtime error

What type of error is caused by the following code snippet?

int main() 
{
   printf("The value of pi is: %f", 3.14);
   return 0;
}

Compile error
Runtime error
Segmentation fault
No error

What type of error is caused by the following code snippet?

int main() 
{
   printf("The value of pi is: %f", 3.14);
   return 0;
}

Compile error
Runtime error
Segmentation fault
No error

What type of error is caused by the following code snippet?

int main() 
{
   int arr[5] = {1, 2, 3, 4, 5};
   printf("%d", arr[10]);
   return 0;
}

Compile error
Runtime error
Segmentation fault
No error

What type of error is caused by the following code snippet?

int main() 
{
   int* ptr = NULL;
   printf("%d", *ptr);
   return 0;
}

Compile error
Runtime error
Segmentation fault
No error

What type of error is caused by the following code snippet?

int main() 
{
   char* str = "Hello";
   str[0] = 'h';
   printf("%s", str);
   return 0;
}

Compile error
Runtime error
Segmentation fault
No error

What type of error is caused by the following code snippet?

int main() {
   int* ptr = malloc(sizeof(int));
   free(ptr);
   *ptr = 5;
   printf("%d", *ptr);
   return 0;
}

Compile error
Runtime error
Segmentation fault
No error

What type of error is caused by the following code snippet?

void foo(int arr[]) 
{
   printf("%d", arr[0]);
}

int main() 
{
   int arr[5] = {1, 2, 3, 4, 5};
   foo(arr);
   return 0;
}

Compile error
Runtime error
Segmentation fault
No error

What type of error is caused by the following code snippet?

int main() 
{
   int a = 5, b = 0;
   int c = a/b;
   printf("%d", c);
   return 0;
}

Compile error
Runtime error
Segmentation fault
No error

What type of error is caused by the following code snippet?

int main()
 {
   int arr[5] = {1, 2, 3, 4, 5};
   int* ptr = &arr;
   printf("%d", *ptr);
   return 0;
}

Compile error
Runtime error
Segmentation fault
No error

What type of error is caused by the following code snippet?

int main() {
   int* ptr = malloc(-1);
   printf("%d", *ptr);
   return 0;
}

Compile error
Runtime error
Segmentation fault
No error

What will be the output of the program?

#include <stdio.h>
#include <stdlib.h>
int main() 
{
    int *p = NULL;
    *p = 10;
    printf("%d", *p);
    return 0;
}

10
0
Compilation Error
Segmentation Fault

What will be the output of the program?

#include <stdio.h> 
#include <string.h>
int main() 
{
    char *str = "Hello, World!";
    strcpy(str, "Goodbye, World!");
    printf("%s", str);
    return 0;
}

Hello, World!
Goodbye, World!
Compilation Error
Segmentation Fault

What will be the output of the above program?

#include <stdio.h>

int x = 0;

int main()

{

int *const ptr = &x;

printf(“%p\n”, ptr); ptr++;

printf(“%p\n”, ptr); return 0;

}

0 1
Compile error
Runtime error
Segmentation fault

What will be the output of the C program?
#include
int main()
{
printf(“”%d “”,sizeof(2.5));
printf(“”%d “”,sizeof(2));
printf(“”%d””,sizeof(‘A’));
return 0;
}

8 4 4
8 4 1
4 4 1
2.5 2 A

What will be the output of the C program?
#include
int main()
{
float x = 3.14;
double y = 3.14;
printf(“”%f %ff””,x, y);
return 0;
}

Runtime error
Compilation error
3.140000 3.140000
3.140000 3.140000f

What will be the output of the C program?
#include
int main()
{
int x = 2;
(x & 1) ? printf(“”true””) : printf(“”false””);
return 0;
}

Compilation error
TRUE
FALSE
Runtime error

What will be the output of the C program?
#include
int main()
{
char num = ‘\010’;
printf(“”%d””, num);
return 0;
}

What will be the output of the C program?
#include
#define x =
int main()
{
int a;
a x 5;
printf(“”%d””,a);
return 0;
}

Compilation error
Runtime error
5
program incomplete

What will be the output of the C program?
#include
int main(){
int i = -1;
do
{
printf(“”HiDoWhile “”);
}while(i++);
return 0;
}

Compilation Error
HiDoWhile
HiDoWhileHiDoWhie
HiDoWhile

What will be the output of the C program?
#include
int main(){
while(printf(“”%d””, 5) < 4)
printf(“”Loop “”);
return 0;
}

Prints Nothing
5Loop 5Loop 5Loop 5Loop 5Loop
5Loop
Infinite iterations or Infinite Loop

What will be the output of the C program?
#include
#define FALSE -1
#define NULL 0
#define TRUE 1

int main(){
if(NULL)
printf(“”NULL””);
else if(FALSE)
printf(“”TRUE””);
else
printf(“”FALSE””);
return 0;
}

FALSE
TRUE
NULL
Compilation Error

What will be the output of the C program?
#include
int main(){
int i = 0, j = 0;
if(i++ == j++)
printf(“”%d %d””, i–, j–);
else
printf(“”%d %d””, i, j);
return 0;
}

What will be the output of the C program?
#include
#define loop for(;;)
int main()
{
printf(“”DONE””);
loop;
return 0;
}

Compilation error
Done
Program never ends
None of the above

What will be the output of the C program?
#include
int main()
{
char i = 0;
for(;i>=0;i++);
printf(“”%d””, i);
return 0;
}

Compilation error
-128
0
1

What will be the output of the C program?
#include
int main()
{
int i;
if(scanf(“”%d””,&i)) //if we give input as 0
printf(“”inside if block””);
else
printf(“”inside else block””);
return 0;
}

Runtime error
Compilation error
inside else block
inside if block

What will be the output of the C program?
#include
int main(){
int i = 3, j = 4;
switch(i | j)
{
case 1:
printf(“”inside case 1″”);
break;
case 3:
printf(“”inside case 3″”);
break;
case 4:
printf(“”inside case 4″”);
break;
case 7:
printf(“”inside case 7″”);
break;
}
return 0;
}

inside case 1
inside case 3
inside case 7
inside case 4

What will be the output of the C program?
#include
#define preprocessor(n) printf (“”macro”” #n “” = %d””, macro##n)
int main(void) {
int macro25 = 47;
preprocessor(25);
return 0;
}

Compilation error
macro25 = 47
macro47 = 25
Runtime error

What is the output of following program?
# include

int main()
{
char str1[] = “”GeeksQuiz””;
char str2[] = {‘G’, ‘e’, ‘e’, ‘k’, ‘s’, ‘Q’, ‘u’, ‘i’, ‘z’};
int n1 = sizeof(str1)/sizeof(str1[0]);
int n2 = sizeof(str2)/sizeof(str2[0]);
printf(“”n1 = %d, n2 = %d””, n1, n2);
return 0;
}

n1 = 10, n2 = 9
n1 = 10, n2 = 10
n1 = 9, n2 = 9
n1 = 9, n2 = 10

In below program, what would you put in place of “?” to print “”Cranesvarsity”?
#include
int main()
{
char arr[] = “”Cranesvarsity””;
printf(“”%s””, ?);
return 0;
}

arr
(arr+5)
(arr+4)
Not possible

What will be the output of the program?
#include
int addmult(int ii, int jj)
{
int kk, ll;
kk = ii + jj;
ll = ii * jj;
return (kk, ll);
}
int main()
{
int i=3, j=4, k, l;
k = addmult(i, j);
l = addmult(i, j);
printf(“”%d %d””, k, l);
return 0;
}

12 12
No error, No output
Error: Compile error
None of above

What will be the output of the program?
#include
int fun(int i)
{
i++;
return i;
}
int main()
{
int fun(int);
int i=3;
fun(i=fun(fun(i)));
printf(“”%d””, i);
return 0;
}

5
4
error
Garbage value

#include
int fun()
{
static int num = 16;
return num–;
}
int main()
{
for(fun(); fun(); fun())
printf(“”%d “”, fun());
return 0;
}

Infinite loop
13 10 7 4 1
14 11 8 5 2
15 12 8 5 2

#include
int main()
{
int x = 10;
static int y = x;

if(x == y)
printf(“”Equal””);
else if(x > y)
printf(“”Greater””);
else
printf(“”Less””);
return 0;
}

compiler error
equal
greater
less

Which of the following statement are correct?
(I) The maximum value a variable can hold depends upon its storage class.
(II) By default all variables enjoy a static storage class.

Only I is correct
Only II is correct
Both I & II are correct
Both I & II are incorrect

What will be the output of the following program?
#include
int main()
{
register int i = 2;
static char ch = ‘A’;
auto float j;
int k;
k = ++ch && i;
k = ++ch;
j = i– + ++k * 2;
printf(“%d %f”, k , j);
return 0;
}

B 3
65 138.000000
68 138.000000
A 138

What will be the output of the following code?
#include< stdio.h>
int main()
{
extern int a=0;
static char j = ‘E’;
printf(“%c %d”, ++j, ++a);
return 0;
}

E 1
F 1
F Garbage
Compler error

What will be the output of the program if the array begins at 65472 and each integer occupies 2 bytes?
#include
int main()
{
int a[3][4]={1,2,3,4,4,3,2,1,7,8,9,0};
printf(“%u,%u”,a+1,&a+1);
}

65474, 65488
65480, 65488
65480, 65496
65474, 65476

Predict output of following program
int main()
{
int i;
int arr[5] = {1};
for (i = 0; i < 5; i++)
printf(“”%d “”, arr[i]);
return 0;
}

1 followed by four garbage values
1 0 0 0 0
1 1 1 1 1
0 0 0 0 0

Predict output of following program
#include
int main()
{
char p;
char buf[10] = {1, 2, 3, 4, 5, 6, 9, 8};
p = (buf + 1)[5];
printf(“”%d””, p);
return 0;
}

5
6
9
None of the above

What will be the output of the program ?
#include
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;
}

2 1 15
1 2 5
3 2 15
2 3 20

What will be the output of the program?
#include
int main()
{
int arr[5], i=0;
while(i<5)
arr[i]=++i;
for(i=0; i<5; i++)
printf(“”%d, “”, arr[i]);
return 0;
}

1 , 2, 3, 4, 5
Garbage value, 1, 2, 3, 4
0, 1, 2, 3, 4
2, 3, 4, 5, 6

What will be the output of the C program?
#include
int function();
main()
{
int i;
i = function();
printf(“”%d””, i);
return 0;
}
function()
{
int a;
a = 250;
return 0;
}

Runtime error
0
250
no output

What will be the output of the program ?
#include
int main()
{
int arr[1]={10};
printf(“”%d””, 0[arr]);
return 0;
}

#include
int main()
{

while((printf(“”Hello “”))<4)
{
printf(“”The control is inside the while loop””);
}

printf(“”The control is outside the while loop\n””);

return 0;
}
What will be the output of the program ?

Hello
Hello The control is outside the while loop
The control is outside the while loop
Compliler Error

int main()
{
int x = 10;
{
int x = 0;
printf(“”%d””,x);
}
return 0;
}

10
Compilation Error
0
Undefined

Which programming language is more faster among these?

Java
PHP
C
Visual Basic

int main()
{
int a = printf (“”hello””);
printf(“”%d””, a);
return 0;
} After executing the above program the value of a is:

0
1
5
Garbage value

#include
int main()
{
int n;
for(n = 7; n!=0; n–)
printf(“”n = %d””, n–);
getchar();
return 0;
}

7 6 5 4 3 2 1
7 5 3 1
6 4 2
Infinite loop

#include
int main()
{
printf(“”%x””, -1<<1);
getchar();
return 0;
}

0x01
0x05
ffffe
fffffffe

#include
#include
enum {false, true};
int main()
{
int i = 1;
do
{
printf(“”%d\\n””, i);
i++;
if (i < 15)
continue;
} while (false);

return 0;
}

1\n
1
Error
Infinite Loop

#include
int main()
{
static int i=5;
if(–i){
main();
printf(“”%d “”,i);
}
}

5 4 3 2 1
4 3 2 1 0
0 0 0 0
Compile time error

#include
int main()
{
int x;
printf(“”%d””,scanf(“”%d””,&x));
return 1;
}

#include
int main()
{
int i=0;
for(i=0; i<20; i++)
{
switch(i)
{
case 0:
i+=5;
case 1:
i+=2;
case 5:
i+=5;
default:
i+=4;
break;
}
printf(“”%d “”, i);
}
getchar();
return 0;
}

14 24
10 22
16 21
Compile time error

#include
int main()
{
printf(“”%p””, main);
getchar();
return 0;
}

Compile time error
Run time error
Address of main
No output

#include
# include
void fun(int *a)
{
a = (int*)malloc(sizeof(int));
}
int main()
{
int *p;
fun(p);
*p = 6;
printf(“”%d\\n””,*p);
return(0);
}

6
Run time error
Syntatical error
No output

What will be the output of following?
void main()
{
int const* p = 5;
printf(“”%d””, ++(*p));
}

6
5
Garbage Value
Compiler Error

What will be the output of following?
#include

int main()
{
int i=0;

i=printf(“”Where there is a will there is way “”);
printf(“”%d\n””,i);
return 0;
}

Where there is a will there is way 9
Where there is a will there is way 35
Where there is a will there is way 34
Compiler Error

What will be the output of following?
void main()
{
int m, i = 0, j = 1, k = 2;
m = i++ || j++ || k++;
printf(“”%d %d %d %d””, m, i, j, k);
}

1 1 2 3
1 1 2 2
0 1 2 2
0 1 2 3

What will be the output of following?
void main()
{
int i = 0;
printf(“”%d %d””, i, i++);
}

What will be the output of following?
#include
#include
void main()
{
printf(“”%d %d””, sizeof(“”program””), strlen(“”program””));
}

What will be the output of following?
#include
int main()
{
int array[] = {[1] = 1, [0] = 2, [2] = 3 };
printf(“”%d %d %d””, array[0], array[1], array[2]);
return 0;
}

2 1 3
1 3 2
1 0 2
Error

What will be the output of following?
#include
char A()
{
char c = ‘B’;
return c;
}

int main()
{
printf(“”%lu””, sizeof(A()));
return 0;
}

0
Error
2
1

#include

int main()
{
int i=0;

for (;;);
printf(“”INDIA\n””);
return 0;
}

What will be the output for the above program?

The string “INDIA” is printed one time
Compilation Error
The string “INDIA” is printed infiite times
The string” INDIA” will never be printed

What does the following fragment of C-program print?
char c[] = “”GATE2011″”;
char *p =c;
printf(“”%s””, p + p[3] – p[1]) ;

GATE2011
E2011
11
2011

#include

main()
{
int x = 5;

if(x=5)
{
if(x=5) break;
printf(“”Hello””);
}
printf(“”Hi””);
}

1
1 2
No output
Compile error

#include

int main()
{
int i,j,return_val=0;

for(i=0,j=4; i < 5 && j < 10 ;i++,j–)
{
printf(“”%d%d “”,i,j);
}
}

04 13 22 31 40
04 13 22 31 40 5-1 6-2 7-3 8-4 9-5
04 13 22 31 40 5-1 6-2 7-3 8-4
Compliler Error

#include

int main()
{
int i=0,*s=NULL;
int *ptr = &i;
char str[] = “”Welcome””;

s = str;
while(*s)
printf(“”%c””, *s++);
return 0;
}

Welcome
0
Wel
Wo

If S is an array of 80 characters, then the value assigned to S through the statement scanf(“%s”,S) with input 12345 would be

“12345”
nothing since 12345 is an integer
S is an illegal name for string
%s cannot be used for reading in values of S

A one dimensional array A has indices 1….75.Each element is a string and takes up three memory words. The array is stored starting at location 1120 decimal. The starting address of A[49] is

1167
1164
1264
1169

#include
int main()
{
int a=0,b=0,c=0,d=0,e=a,f=b,g=c;

a=b=c=d=5;//e=f=g=5;

printf(“” %d %d %d %d %d %d %d””,a,b,c,d,e,f,g);
return 0;
}

5 5 5 5 0 0 0
0 0 0 5 0 0 0
Compilation error
5 5 5 5 5 5 5

#include
int main()
{
int num=0x12345678;
printf(“”%x\n””,num=num>>1);
return 0;
}

91a2b3c
1234567
2345678
None of these

#include
int main()
{
int num=0x82345678;
printf(“”%x\n””,num=num>>1);
return 0;
} What will be the output?

c11a2b3c
411a2b3c
8234567
None of the above

#include
void main()
{
char str1[10]=””abyz””;
int i;
for(i=0; i<4; i++)
{
printf(“”%c””,str1[i] – 32);
}
}

AB
zyba
abyz
ABYZ

C MCQ

MCQ

What is the output of the following code?

What is the correct syntax for a multi-line comment in C?

Which operator has the highest precedence in C?

What is the output of the following code?

What is the output of the following code?

What is the output of the following code?

What is the output of the following code?

What is the output of the following code?

What is the output of the following code?

What is the output of the following code?

What is the output of the following code?

What is the output of this C code?

What is the output of this C code?

What is the output of this C code?

What is the output of this C code?

What is the output of this C code?

What is the output of this C code?

What is the output of this C code?

What is the output of this C code?

What is the output of this C code?

What is the output of this C code?

What is the output of this C code?

What is the output of this C code?

What is the output of this C code?

What is the output of this C code?

What is the output of this C code?

What is the output of this C code?

What is the output of this C code?

What is the output of this C code?

Which of the following statement is an infinite loop?

Which one of the following correct with respect to size of the datatypes?

Statement 1: Extern variable can be declared multiple times but can be defined only once. Statement 2: usage of ‘&’ operator on the register variable is restricted.?

What is the output of this C code?

What is the output of this C code?

What is the output of this C code?

What is the output of this C code?

What is the output of this C code?

What is the output of this C code?

What is the output of this C code?

What is the output of this C code?

What is the output of this C code?

What is the output of this C code?

What is the output of this C code?

Which of the following expression will swap the values in the variable a, b?

What is the output of this C code?

What is the output of this C code?

What is the output of this C code?

What is the output of this C code?

What is the output of this C code?

What is the output of this C code?

What is the output of this statement?

What is the output of this C code?

What is the output of this C code?

What is the output of this C code?

What is the output of the program

What is the output of the program

Which of the following is true about return type of functions in C?

Assume that objects of the type short, float and long occupy 2 bytes, 4 bytes and 8 bytes, respectively. The memory requirement for variable t, ignoring alignment considerations, is

Which of the following is not a storage class specifier in C?

Which of the following is not a logical operator?

Which file is generated after pre-processing of a C program?

What does the following C statement mean?

Assume that a character takes 1 byte. Output of following program?

What is the output of the following Code?

Which of the following is true for variable names in C?

Which one of the following is a loop construct that will always be executed once?

A global variable is declared __________.

What is the result after execution of the following code if a is 10, b is 5, and c is 10?

What is an example of iteration in C?

In the C language, the constant is defined _______. ?

What is the output of this C code?

A machine in which the least significant bit is stored in the smallest address is __________

What is the output of this C code?

What is the output of this C code?

Which of the following expression will swap the values in the variable a, b?

What is the output of the following Code?

What is the output of the following Code?

What is the output of the following Code?

Statement 1: Extern variable can be declared multiple times but can be defined only once.
Statement 2: usage of ‘&’ operator on the register variable is restricted.?