2016-12-05 23:44:36 +01:00
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func roman2arabic(digit) {
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digit.uc.trans([
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:M: '1000+',
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:CM: '900+',
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:D: '500+',
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:CD: '400+',
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:C: '100+',
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:XC: '90+',
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:L: '50+',
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:XL: '40+',
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:X: '10+',
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:IX: '9+',
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:V: '5+',
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:IV: '4+',
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:I: '1+',
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]).split('+').map{.to_i}.sum;
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}
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2017-09-23 10:01:46 +02:00
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2016-12-05 23:44:36 +01:00
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%w(MCMXC MMVIII MDCLXVI).each { |roman_num|
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say "#{roman_num}\t-> #{roman2arabic(roman_num)}";
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}
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