In C++, how can one move each element one to the right using only pointers? [closed]

Answer 1

I'm assuming n is the size of the array. If so, you can use the following code:

int tmp = arr[n - 1];          /* Store the last element in `tmp` */

for(int i = n - 1; i > 0; i--) /* Loop backwards */
    arr[i] = arr[i - 1];       /* Move all elements up */

arr[0] = tmp;                  /* Insert the last element at the first location */