Abel Muiño amuino
amuino
/ roman_numerals.rb
Created
February 3, 2011 23:33
— forked from lantoli/roman_numerals.rb
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| require 'rspec' | |
| class Fixnum | |
| ROMANS = { M: 1000, CM: 900, D: 500, CD: 400, C: 100, XC: 90, L: 50, XL: 40, X: 10, IX: 9, V: 5, IV: 4, I: 1 } | |
| def to_roman | |
| remaining_number = self | |
| ROMANS.inject ("") do | roman_str, current_number | | |
| times,remaining_number = remaining_number.divmod current_number[1] | |
| roman_str + current_number[0].to_s * times |