1 Choose a small or medium-sized imperative program that you have designed with global variables but without abstract types. (a) Draw a diagram of your program’s architecture, along the lines. (b)...

1 Choose a small or medium-sized imperative program that you have designed with global variables but without abstract types.

(a) Draw a diagram of your program’s architecture, along the lines.

(b) Redesign your program systematically using abstract types. Draw a diagram of your program’s new architecture, along the lines

2 Consider the following C code:

p = 1; m = n; a = b;

while
(m > 0) {

if
(m % 2 != 0) p = p * a;

m = m / 2;

a = a * a;

Write a more concise version of this code. Is the concise version more or less readable?