37 lines
1020 B
Python
37 lines
1020 B
Python
import readline
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def convert_to_number(numerals: str) -> str:
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filtered = list(filter(lambda x: x in "IVXCM", list(numerals.upper())))
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if len(filtered) == 0:
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return "ERROR: Invalid input"
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values: list[int] = []
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for i in range(len(filtered)):
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match filtered[i]:
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case "I":
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values.append(1)
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case "V":
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values.append(5)
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case "X":
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values.append(10)
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case "C":
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values.append(100)
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case "M":
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values.append(1000)
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if len(values) > 1:
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return f"{''.join(filtered)} = {' + '.join(str(v) for v in values)} = {sum(values)}"
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else:
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return f"{''.join(filtered)} = {values[0]}"
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def main():
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while True:
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try:
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numerals = input("Please enter some Roman numerals: ")
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print(convert_to_number(numerals))
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except (EOFError, KeyboardInterrupt):
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break
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if __name__ == "__main__":
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main()
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