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Expressions - C Programming Questions and Answers

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  1. What will be the output of the program?

    #include 
int main()
 {     
     int i=-3, j=2, k=0, m;  
     m = ++i && ++j && ++k;   
     printf("%d, %d, %d, %d\n", i, j, k, m);  
     return 0;
 }

    2. A.

    -2, 3, 1, 1
    B.

    2, 3, 1, 2
    C.

    1, 2, 3, 1
    D.

    3, 3, 1, 2

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  2. Assuming, integer is 2 byte, What will be the output of the program?

    #include
  
 int main() 
 {    
    printf("%x\n", -22); 
    return 0;
 }

    3. A.

    ffff
    B.

    0  
    C.

    fff8
    D.

    Error

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  3. What will be the output of the program?

    #include
 int main() 
{    
    int i=-3, j=2, k=0, m;   
    m = ++i || ++j && ++k;   
    printf("%d, %d, %d, %d\n", i, j, k, m);     
    return 0;
 }

    4. A.

    2, 2, 0, 1
    B.

    1, 2, 1, 0
    C.

    -2, 2, 0, 0
    D.

    -2, 2, 0, 1

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  4. What will be the output of the program?

    #include
 int main() 
 {    
      int x=12, y=7, z;    
      z = x!=4 || y == 2;  
      printf("z=%d\n", z);     
      return 0; 
}

    5. A.

    z=0
    B.

    z=1
    C.

    z=4
    D.

    z=2

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  5. What will be the output of the program?

    #include
 int main() 
 {   
      static int a[20];   
      int i = 0;    
      a[i] = i  ;   
      printf("%d, %d, %d\n", a[0], a[1], i);     
      return 0; 
}

    6. A.

    1, 0, 1
    B.

    1, 1, 1
    C.

    0, 0, 0
    D.

    0, 1, 0

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  6. What will be the output of the program?

    #include
 int main() 
{   
     int i=4, j=-1, k=0, w, x, y, z;    
     w = i || j || k;   
     x = i && j && k;     
     y = i || j &&k;    
     z = i && j || k;   
     printf("%d, %d, %d, %d\n", w, x, y, z);  
     return 0;
 } €‹
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    7. A.

    1, 1, 1, 1
    B.

    1, 1, 0, 1
    C.

    1, 0, 0, 1
    D.

    1, 0, 1, 1

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  7. What will be the output of the program?

    #include 
int main()
 {     
     int i=-3, j=2, k=0, m;   
     m = ++i && ++j || ++k;   
     printf("%d, %d, %d, %d\n", i, j, k, m);   
     return 0; 
}

    8. A.

    1, 2, 0, 1
    B.

    -3, 2, 0, 1
    C.

    -2, 3, 0, 1
    D.

    2, 3, 1, 1

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  8. What will be the output of the program?

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

    9. A.

    4, 3, 3
    B.

    4, 3, 2
    C.

    3, 3, 2
    D.

    2, 3, 3

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  9. What will be the output of the program?

    #include
int main()
{
    int i=3;
    i = i++;
    printf("%d\n", i);
    return 0;
}
    10. A.

    3
    B.

    4
    C.

    5
    D.

    6

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  10. What will be the output of the program?

    #include
 int main() 
{   
   int a=100, b=200, c;   
   c = (a == 100 || b > 200);   
   printf("c=%d\n", c);   
   return 0; 
}

    11. A.

    c=100
    B.

    c=200
    C.

    c=1
    D.

    c=300

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