Fix ruff

[MaximSmolskiy]

Describe your change:

• Add an algorithm?
• Fix a bug or typo in an existing algorithm?
• Add or change doctests? -- Note: Please avoid changing both code and tests in a single pull request.
• Documentation change?

Checklist:

• I have read CONTRIBUTING.md.
• This pull request is all my own work -- I have not plagiarized.
• I know that pull requests will not be merged if they fail the automated tests.
• This PR only changes one algorithm file. To ease review, please open separate PRs for separate algorithms.
• All new Python files are placed inside an existing directory.
• All filenames are in all lowercase characters with no spaces or dashes.
• All functions and variable names follow Python naming conventions.
• All function parameters and return values are annotated with Python type hints.
• All functions have doctests that pass the automated testing.
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• If this pull request resolves one or more open issues then the description above includes the issue number(s) with a closing keyword: "Fixes #ISSUE-NUMBER".

[MaximSmolskiy]

@cclauss please review

[cclauss]

I suspect using max() and min() is slower than the code that they replace. It is more readable but is it worth the slowdown?

We should probably use a noqa to avoid this rule in maths/find_max.py because not using max() is the goal of that file.

[cclauss]

More than 4x slower...

def countdown_max():
    j = -1
    for i in range(1_000_000, 0, -1):
        j = max(i, j)
    return j


def countdown_maximum():
    j = -1
    for i in range(1_000_000, 0, -1):
        if j < i:
            j = i
    return j


def countup_max():
    j = -1
    for i in range(1_000_000):
        j = max(i, j)
    return j


def countup_maximum():
    j = -1
    for i in range(1_000_000):
        if j < i:
            j = i
    return j


if __name__ == "__main__":
    from timeit import timeit

    print(f"{countdown_max() = }")
    print(f"{countdown_maximum() = }")
    print(f"{countup_max() = }")
    print(f"{countup_maximum() = }\n")

    print("countdown_max", timeit("countdown_max()", globals=globals(), number=10))
    print("countdown_maximum", timeit("countdown_maximum()", globals=globals(), number=10))
    print("countup_max", timeit("countup_max()", globals=globals(), number=10))
    print("countup_maximum", timeit("countup_maximum()", globals=globals(), number=10))