Question

Let A be a two dimensional array declared as follows:

A : array [ 1:20, 1:30] of integer;

Assuming that each integer takes two memory locations the array is stored in column-

major order and the first element of the array is stored at location 1000, what is the

address of the element A[i] [j]?​

Answer 1

Answer:

Let A be a two dimensional array declared as follows:

A: array[1...10] [1...15] of integer; Assuming that each integer takes one memory locations the array is stored in row-major order and the first element of the array is stored at location 100, what is the address of the element A[i][j]?

(A) 15i+j+84 (B) 15j+i+84 (C) 10i+j+89 (D) 10j+i+89

Answer

Ans: (A)

100+(i-1)15+(j-1) = 100 +15i+15+j-1 = 15i+j+84