More Complex Technical Questions and Coding was easy.
Write a Python function that solves the problem you infer from this prompt in a standard coding interview setting. Your solution should be efficient, handle edge cases, and return the correct result for the given input format.
Function Signature
def solve_problem(data):
Input and Output
- Input: a single Python value or a structured object, depending on the test case
- Output: the required result for that input
Requirements
- Use an algorithmic approach appropriate for a medium-difficulty interview problem.
- Handle duplicate values, empty inputs, and boundary conditions where applicable.
- Return the result in the exact format expected by the tests.
