A[12] = h + A[8]

1. A[12]: This refers to the element at index 12 in array A. The index starts from 0, so it represents the 13th element in the array.

2. A[8]: This refers to the element at index 8 in array A. It represents the 9th element in the array.

3. A[8] + h: This represents the sum of the value at index 8 in array A and the value of variable h. The value of h is added to the value at index 8.

4. A[12] = A[8] + h: This assigns the sum of A[8] and h to the element at index 12 in array A. It updates the value at index 12 with the sum.

In summary, the code statement A[12] = h + A[8] updates the value at index 12 in array A by assigning the sum of the value at index 8 in array A and the value of variable h.