In designing algorithms, we have to accomplish a certain objective. Three algorithms are given below.
What does each algorithm accomplish when the initial values of x and y are 2 and 3, respectively?
What are the final values for x and y for each algorithm?
Assuming that setting up variables is more efficient than performing mathematical operations, which one is more efficient and why?
1: t1 = x; t2 = y; x = t2; y = t1
2: z = x; x = y; y = z
3: x = x + y; y = x - y; x = x - y