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  1. 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\n", a+1, &a+1);      
         return 0;
     } 
    

  2. A.

    65474, 65476

    B.

    65480, 65496

    C.

    65480, 65488

    D.

    65474, 65488

    View Answer

    Workspace

    Answer : Option B

    Explanation :

    Step 1: int a[3][4] = {1, 2, 3, 4, 4, 3, 2, 1, 7, 8, 9, 0}; The array a[3][4] is declared as an integer array having the 3 rows and 4 colums dimensions.

    Step 2: printf("%u, %u\n", a+1, &a+1);

    The base address(also the address of the first element) of array is 65472.

    For a two-dimensional array like a reference to array has type "pointer to array of 4 ints". Therefore, a+1 is pointing to the memory location of first element of the second row in array a. Hence 65472 + (4 ints * 2 bytes) = 65480

    Then, &a has type "pointer to array of 3 arrays of 4 ints", totally 12 ints. Therefore, &a+1 denotes "12 ints * 2 bytes * 1 = 24 bytes".

    Hence, begining address 65472 + 24 = 65496. So, &a+1 = 65496

    Hence the output of the program is 65480, 65496


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