Create smallestRange.py (#11179)

* Create smallestRange.py

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* Update smallestRange.py

* Update smallestRange.py

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* Update smallestRange.py

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* Update and rename smallestRange.py to smallestrange.py

* Update smallestrange.py

* Update smallestrange.py

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* Update smallestrange.py

* Rename smallestrange.py to smallest_range.py

* Update smallest_range.py

* Update smallest_range.py

* Update smallest_range.py

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Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Christian Clauss <[email protected]>