Contents

local mappings = {
  { value = 1000, numeral = 'M' },
  { value = 900, numeral = 'CM' },
  { value = 500, numeral = 'D' },
  { value = 400, numeral = 'CD' },
  { value = 100, numeral = 'C' },
  { value = 90, numeral = 'XC' },
  { value = 50, numeral = 'L' },
  { value = 40, numeral = 'XL' },
  { value = 10, numeral = 'X' },
  { value = 9, numeral = 'IX' },
  { value = 5, numeral = 'V' },
  { value = 4, numeral = 'IV' },
  { value = 1, numeral = 'I' },
}

return {
  to_roman = function(n)
    local result = ''
    for _, mapping in ipairs(mappings) do
      while n >= mapping.value do
        result = result .. mapping.numeral
        n = n - mapping.value
      end
    end
    return result
  end
}

Version data entries

396 entries across 396 versions & 1 rubygems

Version	Path
trackler-2.2.1.180	tracks/lua/exercises/roman-numerals/example.lua
trackler-2.2.1.179	tracks/lua/exercises/roman-numerals/example.lua
trackler-2.2.1.178	tracks/lua/exercises/roman-numerals/example.lua
trackler-2.2.1.177	tracks/lua/exercises/roman-numerals/example.lua
trackler-2.2.1.176	tracks/lua/exercises/roman-numerals/example.lua
trackler-2.2.1.175	tracks/lua/exercises/roman-numerals/example.lua
trackler-2.2.1.174	tracks/lua/exercises/roman-numerals/example.lua
trackler-2.2.1.173	tracks/lua/exercises/roman-numerals/example.lua
trackler-2.2.1.172	tracks/lua/exercises/roman-numerals/example.lua
trackler-2.2.1.171	tracks/lua/exercises/roman-numerals/example.lua
trackler-2.2.1.170	tracks/lua/exercises/roman-numerals/example.lua
trackler-2.2.1.169	tracks/lua/exercises/roman-numerals/example.lua
trackler-2.2.1.167	tracks/lua/exercises/roman-numerals/example.lua
trackler-2.2.1.166	tracks/lua/exercises/roman-numerals/example.lua
trackler-2.2.1.165	tracks/lua/exercises/roman-numerals/example.lua
trackler-2.2.1.164	tracks/lua/exercises/roman-numerals/example.lua
trackler-2.2.1.163	tracks/lua/exercises/roman-numerals/example.lua
trackler-2.2.1.162	tracks/lua/exercises/roman-numerals/example.lua
trackler-2.2.1.161	tracks/lua/exercises/roman-numerals/example.lua
trackler-2.2.1.160	tracks/lua/exercises/roman-numerals/example.lua