# C Operator Questions

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Question 1

Time: 00:00:00
What is the expected outcome od the following C code ?

#include "stdio.h" void fst(void) { printf("Prep"); } void snd(void) { printf("Insta"); } int main() { fst(), snd(); return 0; }

Prep, Insta

Prep, Insta

Prep Insta

Prep Insta

Error because of the , between the fst() and snd()

Error because of the , between the fst() and snd()

PrepInsta

PrepInsta

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Question 2

Time: 00:00:00
Choose the correct option for the following code.

#include <stdio.h> int main() { int arr[7]; int n=3; arr[++n]=n++; printf("%d",arr[n]); printf(" %d",n); return 0; }

4 5

4 5

3 4

3 4

4 4

4 4

Compiler dependent

Compiler dependent

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Question 3

Time: 00:00:00
What will be the out of the code below ?

#include <stdio.h> void main() { int skip; skip = 26; skip = skip >>4; skip = skip <<6; printf("The decimal value of skip is %d",skip); printf(" The Octadecimal value of skip is %o",skip); }

The decimal value of skip 0 The Octadecimal value of skip is 0

The decimal value of skip 0 The Octadecimal value of skip is 0

The decimal value of skip 26 The Octadecimal value of skip is 32

The decimal value of skip 26 The Octadecimal value of skip is 32

The decimal value of skip 64 The Octadecimal value of skip is 100

The decimal value of skip 64 The Octadecimal value of skip is 100

Error because of incorrect use of << and >> operators.

Error because of incorrect use of << and >> operators.

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Question 4

Time: 00:00:00
Choose the option equivalent to the statement

a=a+1;

b=b-1;

c=a+b+c+d;

d=d+1;

c=a+b+d+1;

c=a+b+d+1;

c=(a++) + (b--) + (d++)

c=(a++) + (b--) + (d++)

c=(++a) + (b--) + d+1

c=(++a) + (b--) + d+1

c=(++a) + (--b) + (d++)

c=(++a) + (--b) + (d++)

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Question 5

Time: 00:00:00
What is the disadvantage of loop unrolling ?

Increases program efficiency.

Increases program efficiency.

Increases program code size.

Increases program code size.

If statements in loop are independent and can be performed in parallel.

If statements in loop are independent and can be performed in parallel.

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Question 6

Time: 00:00:00
What would be the output of the following code below ?

#include <stdio.h> void main() { int a,b,c,d,e; a=4; b=2; c=1; d=4; e=1; int g; g=++a==(b++)*c+d-e; printf("%d",g); }

5

5

1

1

0

0

Compilation error

Compilation error

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Question 7

Time: 00:00:00
What is the correct output of the following C code ?

#include <stdio.h> int main() { int i= 11 ,12 ,13; printf("%d",i); return 0; }

11 12 13

11 12 13

11

11

13

13

Compliation error

Compliation error

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Question 8

Time: 00:00:00
Select the correct output of the code below.

#include <stdio.h> int main() { int i=(11,12,13); printf("%d",i); return 0; }

11

11

13

13

(null)

(null)

Compilation error

Compilation error

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Question 9

Time: 00:00:00
What is the expected output of the given code ?

#include <stdio.h> int main() { int i; i=11,12,13; printf("%d",i); return 0; }

11

11

13

13

11,12,13

11,12,13

Compilation error

Compilation error

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Question 10

Time: 00:00:00
Which is the options is the correct output of the given code ?

#include <stdio.h> int fun(int *a, int *b) { int sum; sum=*a; *a=*b; *b=sum; return *a; } int main() { int i = 0, j = 9, k = 6, l; l = i++ || fun(&j, &k); printf("%d %d %d %d", i, j, k, l); return 0; }

1 1 9 1

1 1 9 1

1 9 6 1

1 9 6 1

11 6 1

11 6 1

1 6 9 1

1 6 9 1

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