Topic: Strings
Difficulty: Beginner

Problem

Write a solution for Strings Exercise #7:

Implement a function solve_strings_7(data) that processes the input according to strings concepts from the curriculum.

Example input: data = [strings_example_7]
Expected: A transformed result demonstrating strings skills.

Constraints

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

Hint

Hint

Review Strings 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_strings_7([]) is not None  # define expected behavior

Next exercise: Strings Exercise #8