he-020

1.000

1/1 tests· algorithms

Proposed solution

```python
from typing import List, Tuple


def find_closest_elements(numbers: List[float]) -> Tuple[float, float]:
    """ From a supplied list of numbers (of length at least two) select and return two that are the closest to each
    other and return them in order (smaller number, larger number).
    >>> find_closest_elements([1.0, 2.0, 3.0, 4.0, 5.0, 2.2])
    (2.0, 2.2)
    >>> find_closest_elements([1.0, 2.0, 3.0, 4.0, 5.0, 2.0])
    (2.0, 2.0)
    """
    if len(numbers) < 2:
        raise ValueError("List must contain at least two numbers.")

    numbers.sort()
    closest = float('inf')
    result = (numbers[0], numbers[1])
    for i in range(len(numbers) - 1):
        if abs(numbers[i] - numbers[i + 1]) < closest:
            closest = abs(numbers[i] - numbers[i + 1])
            result = (numbers[i], numbers[i + 1])
    return result
```

Test output (stdout)

.                                                                        [100%]
1 passed in 0.01s

System prompt

You are an expert programmer. Solve the task exactly as specified. Output your solution as fenced code blocks using the required file name(s) and the exact function/type signatures requested. Prefer correctness; do not include prose outside code unless asked.