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Checklist
[x] I have read the contributing guidelines
[x] I have added doctests
[x] My code follows the project style
[x] This algorithm is not a duplicate
[x] All doctests pass locally
Summary
This PR adds the
integer_to_romanalgorithm to thestringsdirectory. Itconverts an integer to a Roman numeral and includes doctests and input
validation.
Description
Reversible integer-to-Roman mapping logic
Valid for numbers 1–3999
Clear, descriptive parameter names as required by algorithms-keeper
Pure Python implementation with tests
Thank you!