121. Which of the following declaration is illegal?

1. 1. int size = 5;
         int num[size] = {11, 12, 13, 14, 15};
      

   
   
   

   2.  int p = 10, q = 11, r = 12;
         int num[4] = {p, q, r, s};
      

   
   
   

   3. int size = 10;
         int num[size];
      

   
   
   

   4. All of above

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   int size = 5;
      int num[size] = {11, 12, 13, 14, 15};
   

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122. What are the elements present in the array of the following C code?
     

     int num[4] = {10};
     

1. 1. 10, 10, 10, 10

   
   
   

   2. 0, 0, 0, 0

   
   
   

   3. 10, 0, 0, 0

   
   
   

   4. 0, garbage value, garbage value, garbage value

   
   
   

   5. 10, garbage value, garbage value, garbage value

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   10, 0, 0, 0

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123. What are the different ways to initialize an array with all elements as zero?

1. 1. int p = 0,  q = 0,  r = 0;
         int array[5] = {p, q, r};
      

   
   
   

   2. int array[5] = {};

   
   
   

   3. int array[5] = {0};

   
   
   

   4. All of above

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   Option A, B and C are the different ways to initialize an array with all elements as zero.

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124. What will be the output of the following C code?
     

     #include <stdio.h>
         int main()
         {
             const int num[5] = {11, 21, 31, 41, 51};
             int *ptr;
             ptr = num + 3;
             *ptr = 50;
             printf("%d\n", num[3]);
         }
     

1. 1. 11

   
   
   

   2. 21

   
   
   

   3. 31

   
   
   

   4. 51

   
   
   

   5. 50

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: E

   50

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125. What will be the output of the following C code?
     

     #include <stdio.h>
         int main()
         {
             int num[6] = {6, 7, 8, 9, 10};
             printf("%d\n", *num);
         }
     

1. 1. 10

   
   
   

   2. 9

   
   
   

   3. 8

   
   
   

   4. 7

   
   
   

   5. 6

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: E

   6

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