Question

Computer Science

Posted about 1 month ago

```
A programmer develops the procedure maxPairSum () to compute the
sum of subsequent pairs in a list of numbers and return the maximum sum.
For example, for a list of [2, 3, 4, 1], the sums of subsequent pairs are
5 (from 2 + 3), 7 (from 3 + 4), and 5 (from 4 + 1). The procedure should
return the maximum sum of 7.
PROCEDURE maxPairSum (nums) {
i - 1
maxSum - 0
REPEAT UNTIL (i = LENGTH (nums) )
{
sum - nums [i] + nums [i + 1]
{
IF (sum > maxSum)
maxSum - sum
}
i+1
}
RETURN maxSum
}
The programmer tests it with maxPairSum [5, 4, -4, 3, 2]) and
sees a return value of 9.
Can the programmer conclude that the procedure works correctly for all
inputs?
Choose 1 answer:
Yes, that test case is sufficient proof that the procedure works as
A
intended for all possible lists of numbers.
No, since the expected return value is not 9 for that test case.
B
No, but the programmer can conclude that it works for all lists of
C
integers.
D
No, they've only verified that it works for that test case. Additional
analysis and reasoning is necessary.
```

Sign in to unlock the answer

Answer from Sia

Posted about 1 month ago

D

Key Concept

Test Coverage

Explanation

A single test case is not sufficient to verify the correctness of a procedure for all possible inputs. Comprehensive testing, including edge cases and a variety of input scenarios, is necessary to ensure the procedure works correctly in all situations.

Not the question you are looking for? Ask here!

Enter question by text

Enter question by image

Upgrade to Asksia Pro

Join a AskSia's Pro Plan, and get 24/7 AI tutoring for your reviews, assignments, quizzes and exam preps.

Unlimited chat query usages

Strong algorithms that better know you

Early access to new release features

Study Other Question