Hello coders, In this post, you will learn how to solveĀ Validating Roman Numerals in Python HackerRank Solution. This problem is a part ofĀ theĀ Python Hacker Rank series.
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Validating Roman Numerals in Python HackerRank Solution
problem
You are given a string, and you have to validate whether itās a valid Roman numeral. If it is valid, print True. Otherwise, print False. Try to create a regular expression for a valid Roman numeral.
Input Format :
A single line of input containing a string of Roman characters.
Output Format :
Output a single line containing True or False according to the instructions above.
Constraints :
The number will be between 1 and 3999(both included).
Sample Input :
CDXXI
Sample Output :
True
References :
Regular expressions are a key concept in any programming language. A quick explanation with Python examples isĀ available here. You could also go through the link below to read more about regular expressions in Python.
https://developers.google.com/edu/python/regular-expressions
Validating Roman Numerals in Python HackerRank Solution
thousand = 'M{0,3}' hundred = '(C[MD]|D?C{0,3})' ten = '(X[CL]|L?X{0,3})' digit = '(I[VX]|V?I{0,3})' regex_pattern = r"%s%s%s%s$" % (thousand, hundred, ten, digit) # Do not delete 'r'. # Validating Roman Numerals in Python - Hacker Rank Solution END import re print(str(bool(re.match(regex_pattern, input()))))
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FAQ:
Does HackerRank have Python?
HackerRankās programming challenges can be solved in a variety of programming languages (including Java, C++, PHP, Python, SQL, JavaScript)Ā and span multiple computer science domains.
Where can I practice Python coding?
- HackerRank is a great site for practice thatās also interactive.
Where can I find HackerRank solutions in Python?
in this post, you will get all theĀ solutionsĀ toĀ HackerRank PythonĀ Problems.
Is possible HackerRank Solution in Python?
HackerRankās programming challenges can be solved in a variety of programming languages (including Java, C++, PHP, Python, SQL, and JavaScript) and span multiple computer science domains. When a programmer submits a solution to a programming challenge, their submission is scored on the accuracy of their output.
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