C MCQ - Standard Input & Output

21. What is the output of the following code?

int main() {
  int i=1;
  i=2+2*i++;
  printf("%d",i);
  return 0;
}

A. 2
B. 3
C. 4
D. 5

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22. What is the output of the following code?

main ( ) 
{
 int i;
 i=1;
 i=i+2*i++;
 printf( "%d" , i);
}

A. 2
B. 3
C. 4
D. 5

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23. What is the output of this program?

main()
{
 int i;
 i = 2+3, 4>3, 1;
 printf( "%d" , i);
}

A. 1
B. 4
C. 3
D. 5

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24. What is the output of this program?

main ()
{
 int i=5;
 printf( "%d %d %d " , i,i<<2,i>>2);
}

A. 5 20 1
B. 5 1 20
C. 5 20 20
D. 5 1 1

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25. What is the output of this program?

main ( )
{
 int i=5;
 printf( "%d %d %d " , i,i<<2,i<<2);
}

A. 5 20 1
B. 5 1 20
C. 5 20 20
D. 5 1 1

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26. What is the output of this program?

int main()
{
    int i=5;
    printf( "%d %d %d " , i,i<2,i>2);
    return 0;
}

A. Compilation error
B. Garbage value
C. 5 0 1
D. 5 1 0

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27. What is the output of this program ?

int main()
{
  int i=5;
  printf( "%d %d %d " , i,i&&2,i||2);
  return 0;
}

A. 5 1 1
B. Compilation error
C. Garbage value
D. 5 0 1

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28. What is the output of this program ?

int main()
{
 int i=5;
 printf( "%d %d 
" , i,i|2);
 return 0;
}

A. 5 7
B. 5 1
C. Garbage value
D. 5 0

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29. What is the output of this program 32 bit c compiler ?

int main()
{
  int i=1;
  i=i+i*i++;
  printf("%d",i);
  return 0;
}

A. 2
B. 3
C. 4
D. 5

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30. What is the output of this program ?

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

A. -2
B. 1
C. -1
D. -2

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