Question

How toprint increment matrix if first element is 1

Answer 1

Answer:#include <stdio.h>

   void incrementArray(int[]);

   void main()

   {

 

       int i;

       int array[4] = {10, 20, 30, 40};

       incrementArray(array);

       for (i = 0; i < 4; i++)

          printf("%d\t", array[i]);   // Prints 2, 3, 4, 5

 

   }

 

   void incrementArray(int arr[])

   {

 

       int i;

       for (i = 0; i < 4; i++)

           arr[i]++;    

   }

Explanation:

Answer 2

Answer:

Explanation:

You can access the element here using *p . This is different from Java where you would have to use an integer index variable to access elements of an array. Incrementing a pointer in C++ where that pointer does not point to an element of an array is undefined behaviour.