What is Code Golf?

Code golf is a type of recreational computer programming competition in which participants strive to achieve the shortest possible source code that solves a certain problem. Code golf challenges and tournaments may also be named with the programming language used. --- Wikipedia

Rules

1. Submit code you wrote. Don't reuse someone else's code.
2. NO AI
3. Don't Google/Bing/DDG/Kagi for answers.
4. All pull requests must be opened before Aug 14 2025 11:30 AM EDT.

The shortest correct program wins. In the event no submissions fully pass the test suite winners will be selected by number of passing test cases and code brevity.

Supported Languages

• C#
• Python
• Go
• Typescript/Javascript

The Problem

Convert numbers written with Arabic numerals into Roman numerals.

Arabic	Roman
1	I
2	II
3	III
4	IV
5	V
10	X
20	XX
25	XXV
30	XXX
40	XL
50	L
100	C
200	CC
400	CD
500	D
1000	M

Example Conversions

27 → XXVII

238 → CCXXXVIII

2019 → MMXIX

Submission Requirements

All submissions should expect to be invoked from the command line with a single argument, the path to a text file. This file will contain 5 numbers written using Arabic numerals. Numbers are separated by a newline (\n). Submissions are expected to iterate over the numbers printing the Roman numeral translation for each to the console/stdout.

Example

import sys


def main():
    # Exit with error status if no filename provided
    if len(sys.argv) < 1:
        print("Filename missing!")
        sys.exit(1)

    print(f"Input file: {sys.argv[0]}")
    # Open the file for reading
    with open(sys.argv[1], "r") as fd:
        line = fd.readline().strip()
        while line != "":
            # Convert line to Roman numeral
            print(line)
            line = fd.readline().strip()


if __name__ == "__main__":
    main()

This repo contains a sample file you can use for development.