Question

consider the following program, which uses the variables start, end, and current.
start ← 1
end ← 20
current ← 3
start ← current
current ← current + 1
display (start)
display (current)
what is displayed as a result of executing the program?
3 3
1 3
4 4
3 4

Explanation:

Step1: Analyze variable assignment

Initially, start = 1, end = 20, current = 3. Then start = current, so start becomes 3.

Step2: Update current variable

Next, current = current + 1, so current becomes \(3 + 1=4\).

Step3: Display values

Finally, DISPLAY (start) shows 3 and DISPLAY (current) shows 4.

Answer:

34