Topic: Files & JSON
Difficulty: Intermediate

Problem

Write a solution for Files & JSON Exercise #12:

Implement a function solve_files_12(data) that processes the input according to files & json concepts from the curriculum.

Example input: data = [files & json_example_12]
Expected: A transformed result demonstrating files & json skills.

Constraints

  • Use idiomatic Python 3.10+
  • Handle empty input gracefully
  • Do not mutate input unless specified

Hint

Hint

Review Files & JSON exercises and the related chapter in the Learning Path. Consider edge cases: empty collections, None, zero, negative numbers.

Test Yourself 

  # Write tests before implementing
assert solve_files_12([]) is not None  # define expected behavior

Next exercise: Files & JSON Exercise #13