SHOW:
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| 1 | rule_add = {
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| 2 | 'I': 1, | |
| 3 | 'V': 5, | |
| 4 | 'X': 10, | |
| 5 | 'L': 50, | |
| 6 | 'C': 100, | |
| 7 | 'D': 500, | |
| 8 | 'M': 1000, | |
| 9 | } | |
| 10 | ||
| 11 | rule_div = {
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| 12 | ('I', 'V'): 3,
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| 13 | ('I', 'X'): 8,
| |
| 14 | ('X', 'L'): 30,
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| 15 | ('X', 'C'): 80,
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| 16 | ('C', 'D'): 300,
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| 17 | ('C', 'M'): 800,
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| 18 | } | |
| 19 | ||
| 20 | def roman_to_arabic(roman_number): | |
| 21 | number = 0 | |
| 22 | prev_literal = None | |
| 23 | for literal in roman_number: | |
| 24 | if prev_literal and rule_add[prev_literal] < rule_add[literal]: | |
| 25 | number += rule_div[(prev_literal, literal)] | |
| 26 | else: | |
| 27 | number += rule_add[literal] | |
| 28 | prev_literal = literal | |
| 29 | return number | |
| 30 | ||
| 31 | print (roman_to_arabic(input('Римская цифра '))) |
