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  1. Prepare
  2. Python
  3. Regex and Parsing
  4. Validating Roman Numerals
  5. Discussions

Validating Roman Numerals

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201 Discussions

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  • parthkejriwal18
     + 0 comments

    regex_pattern = r"^(M{0,3})(C{0,3}|CD|D|DC|DCC|DCCC|CM)(X{0,3}|XL|L|LX|LXX|LXXX|XC)(I{0,3}|IV|V|VI|VII|VIII|IX)$"

    import re print(str(bool(re.match(regex_pattern, input()))))

  • parthkejriwal18
     + 0 comments

    regex_pattern = r"^(M{0,3})(C{0,3}|CD|D|DC|DCC|DCCC|CM)(X{0,3}|XL|L|LX|LXX|LXXX|XC)(I{0,3}|IV|V|VI|VII|VIII|IX)$"

    import re print(str(bool(re.match(regex_pattern, input()))))

  • sefamutlucu
     + 0 comments
    regex_pattern = r"(?!.*(I{4}|V{2,}|X{4}|L{2,}|C{4}|D{2,}|M{4})).*$"

import re
print(str(bool(re.match(regex_pattern, input()))))

  • rejin_gunasekar1
     + 0 comments
    regex_pattern = r"^(M{0,3})(CM|CD|D?C{0,3})(XC|XL|L?X{0,3})(IX|IV|V?I{0,3})$"
import re
print(str(bool(re.match(regex_pattern, input()))))

  • kunalkawate424
     + 0 comments

    Regular Expression for this problem

    r"^M{0,3}(CM|CD|D?C{0,3})(XC|XL|L?X{0,3})(IX|IV|V?I{0,3})$"