regex_pattern = r"^M{0,3}(CD|CM|D?C{0,3})(XC|XL|L?X{0,3})(IX|IV|V?I{0,3})$" # Do not delete 'r'.

Regex and Parsing Detect Floating Point Number Problem Easy Solution Regex and Parsing Re.split() Problem Easy Solution Regex and Parsing Group(), Groups() & Groupdict() Problem Easy Solution Regex ...

HackerRank is a pretty cool place to get better at coding. It’s got tons of challenges that really make you think and figure things out faster. Whether you’re just starting out or you’ve been coding ...

Ever wonder how some folks just seem to breeze through coding challenges and land those awesome tech jobs? A lot of it comes down to practice, and platforms like HackerRank are super helpful for that.