We studied the problem of converting between integers and roman numerals in a previous exercise. We’ll do it again today because it’s a fun exercise, it appears frequently in lists of interview questions, we have an improved algorithm, and it lets us highlight a useful piece of the Standard Prelude.

Your task is to write functions that convert an integer to its equivalent in roman numerals and vice versa. When you are finished, you are welcome to read or run a suggested solution, or to post your own solution or discuss the exercise in the comments below.

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