Program X
limit = int(input("Enter a value: "))
sum_even = 0
counter = 1
while counter <= limit:
sum_even = sum_even + (counter * 2)
counter = counter + 1
print(sum_even)
Program Y
limit = int(input("Enter a value: "))
sum_even = limit * (limit + 1)
print(sum_even)
Select one option to indicate which of the statements is true about the programs in Figure 1.
Both programs are equally efficient.
Program X is more efficient than Program Y.
Program Y is more efficient than Program X.
The efficiency of the programs cannot be compared without knowing the value of limit.
15 exam-style questions on AQA GCSE Computer Science Efficiency of algorithms. Each one has a worked solution and a mark scheme showing where the marks go.