Assume the existence of a class Arr with two (public) data members: a pointer to integer named arr_ptr, and an integer variable named length that will contain the number of elements in the array. Assume the variable a has been declared to be of type Arr, an array has been allocated and assigned to arr_ptr, and length has been assigned the proper value (i.e., the number of elements in the array). Write the code to add 1 to each element of the array.

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Click on the title for the solution
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This is the answer:

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for (int i = 0; i < a.length; i++)
{
    a.arr_ptr[i] += 1;
}

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