Question

Identify all Implicit and Explicit Instructions in this prompt: I want this function to return None if the lengths of a and b are the same, but it does not do that. Def longer(a: str, b: str): return a if len(a) > len(b) else b Modify the code so that None is produced in a particular case. Provide unit tests for this code. Advise on why this might not be happening. Provide some sample output for this task.

Answer 1

This question is about identifying explicit and implicit instructions in a prompt, modifying code, providing unit tests, and troubleshooting why an expected output is not produced.

Step-by-step explanation:

Explicit Instructions:

• Return None if the lengths of a and b are the same
• Modify the code so that None is produced in a particular case
• Provide unit tests for the code

Implicit Instructions:

• Identify why None is not being produced in the particular case
• Provide sample output for the task

It is important to follow both explicit and implicit instructions to complete the task successfully.

Sample Output:

If the code is modified correctly, it should return None when the lengths of a and b are the same.

Why None might not be produced:

If there is an error in the code modification or if the unit tests are not properly written, None might not be produced in the specific case.

Answer 2

The prompt includes an explicit instruction to modify the code and an implicit instruction to write unit tests. The modified code should return None in a specific case.

Step-by-step explanation:

In the given prompt, there is both an explicit instruction and an implicit instruction.

Explicit Instruction:

The explicit instruction is to modify the code so that None is produced in a particular case.

Implicit Instruction:

The implicit instruction is to write unit tests for the modified code.

Here is an example modification of the code that satisfies the explicit instruction:

def longer(a: str, b: str) -> str:
return None if len(a) == len(b) else a if len(a) > len(b) else b

As for why None might not be returned in a particular case, it could be due to an error in the provided code or incorrect logic used in the modification.

Sample output:
longer('cat', 'dog') -> 'dog'
longer('cat', 'frog') -> None