TUTORIALS

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

View Answer

8     4   4    

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

View Answer

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

View Answer

FALSE

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

• 10
• 8
• 10
• 8

View Answer

8

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

View Answer

5

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
  
  

View Answer

HiDoWhile 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

View Answer

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

View Answer

TRUE

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;
}

• 0 0
• 0 1
• 1 0
• 1 1

View Answer

1   1

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

View Answer

Program never ends

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

View Answer

-128

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

View Answer

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

View Answer

inside case 7

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

View Answer

macro25 = 47

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

View Answer

n1 = 10, n2 = 9

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

View Answer

arr

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

View Answer

12       12

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

View Answer

5

#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

View Answer

14   11  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

View Answer

compiler error

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

View Answer

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

View Answer

68        138.000000

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

View Answer

compiler 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

View Answer

65480, 65496

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

View Answer

1 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

View Answer

9

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

View Answer

3  2  15

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

View Answer

Garbage value, 1, 2, 3, 4

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

View Answer

0

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

• 1
• 10
• 0
• 6

View Answer

10

#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

View Answer

Hello The control is outside the while loop

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

• 10
• Compilation Error
• 0
• Undefined

View Answer

0

Which programming language is more faster among these?

• Java
• PHP
• C
• Visual Basic

View Answer

C

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

View Answer

5

#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

View Answer

Infinite loop

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

• 0x01
• 0x05
• ffffe
• fffffffe

View Answer

ffffffe

#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

View Answer

1\n

#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

View Answer

0 0 0 0 0

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

• 0
• 2
• 3
• 1

View Answer

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

View Answer

16 21

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

• Compile time error
• Run time error
• Address of main
• No output

View Answer

Address of main